95 Accord runs hot on freeway
01-17-2007 | 12:25 AM
#1
Guest
Posts: n/a
95 Accord runs hot on freeway
I have a 95 Accord which starts to run hot after about 15 to 20
minutes of driving on the freeway. It runs at normal temperature on
surface streets. I know for sure that the fans are working properly.
I’ve taken it to 2 mechanics and one says it’s the main fan motor and
possibly the thermostat. The other mechanic thinks the radiator needs
to be replaced due to a clog, and if not that, then it is most likely
the head gasket leaking. I’m really confused here. Any help would be
greatly appreciated.
--
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minutes of driving on the freeway. It runs at normal temperature on
surface streets. I know for sure that the fans are working properly.
I’ve taken it to 2 mechanics and one says it’s the main fan motor and
possibly the thermostat. The other mechanic thinks the radiator needs
to be replaced due to a clog, and if not that, then it is most likely
the head gasket leaking. I’m really confused here. Any help would be
greatly appreciated.
--
Posted at author's request, using http://www.AutoBoardz.com interface
Articles individually verified to usenet standards. Visit URL to contact author/report abuse
Thread archive: http://www.AutoBoardz.com/95-runs-ho...ict203686.html
01-17-2007 | 12:41 AM
#2
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Posts: n/a
Re: 95 Accord runs hot on freeway
pinkfloyd wrote:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I�ve taken it to 2 mechanics and one says it�s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I�m really confused here. Any help would be
> greatly appreciated.
>
take it for a run on the freeway. when it's hot, open the hood and look
in the coolant expansion bottle. if you see bubbles, it's head gasket.
if not, you can get it tested to be sure. if it's not head, go for
thermostat and radiator, in that order. but before all that, make sure
coolant level is ok - both in the radiator and the expansion bottle.
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I�ve taken it to 2 mechanics and one says it�s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I�m really confused here. Any help would be
> greatly appreciated.
>
take it for a run on the freeway. when it's hot, open the hood and look
in the coolant expansion bottle. if you see bubbles, it's head gasket.
if not, you can get it tested to be sure. if it's not head, go for
thermostat and radiator, in that order. but before all that, make sure
coolant level is ok - both in the radiator and the expansion bottle.
01-17-2007 | 12:41 AM
#3
Guest
Posts: n/a
Re: 95 Accord runs hot on freeway
pinkfloyd wrote:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I�ve taken it to 2 mechanics and one says it�s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I�m really confused here. Any help would be
> greatly appreciated.
>
take it for a run on the freeway. when it's hot, open the hood and look
in the coolant expansion bottle. if you see bubbles, it's head gasket.
if not, you can get it tested to be sure. if it's not head, go for
thermostat and radiator, in that order. but before all that, make sure
coolant level is ok - both in the radiator and the expansion bottle.
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I�ve taken it to 2 mechanics and one says it�s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I�m really confused here. Any help would be
> greatly appreciated.
>
take it for a run on the freeway. when it's hot, open the hood and look
in the coolant expansion bottle. if you see bubbles, it's head gasket.
if not, you can get it tested to be sure. if it's not head, go for
thermostat and radiator, in that order. but before all that, make sure
coolant level is ok - both in the radiator and the expansion bottle.
01-17-2007 | 12:41 AM
#4
Guest
Posts: n/a
Re: 95 Accord runs hot on freeway
pinkfloyd wrote:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I�ve taken it to 2 mechanics and one says it�s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I�m really confused here. Any help would be
> greatly appreciated.
>
take it for a run on the freeway. when it's hot, open the hood and look
in the coolant expansion bottle. if you see bubbles, it's head gasket.
if not, you can get it tested to be sure. if it's not head, go for
thermostat and radiator, in that order. but before all that, make sure
coolant level is ok - both in the radiator and the expansion bottle.
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I�ve taken it to 2 mechanics and one says it�s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I�m really confused here. Any help would be
> greatly appreciated.
>
take it for a run on the freeway. when it's hot, open the hood and look
in the coolant expansion bottle. if you see bubbles, it's head gasket.
if not, you can get it tested to be sure. if it's not head, go for
thermostat and radiator, in that order. but before all that, make sure
coolant level is ok - both in the radiator and the expansion bottle.
01-17-2007 | 12:41 AM
#5
Guest
Posts: n/a
Re: 95 Accord runs hot on freeway
pinkfloyd wrote:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I�ve taken it to 2 mechanics and one says it�s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I�m really confused here. Any help would be
> greatly appreciated.
>
take it for a run on the freeway. when it's hot, open the hood and look
in the coolant expansion bottle. if you see bubbles, it's head gasket.
if not, you can get it tested to be sure. if it's not head, go for
thermostat and radiator, in that order. but before all that, make sure
coolant level is ok - both in the radiator and the expansion bottle.
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I�ve taken it to 2 mechanics and one says it�s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I�m really confused here. Any help would be
> greatly appreciated.
>
take it for a run on the freeway. when it's hot, open the hood and look
in the coolant expansion bottle. if you see bubbles, it's head gasket.
if not, you can get it tested to be sure. if it's not head, go for
thermostat and radiator, in that order. but before all that, make sure
coolant level is ok - both in the radiator and the expansion bottle.
01-17-2007 | 07:33 AM
#6
Guest
Posts: n/a
Re: 95 Accord runs hot on freeway
"pinkfloyd" <none@000.com> wrote in message
news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
>I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I've taken it to 2 mechanics and one says it's the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I'm really confused here. Any help would be
> greatly appreciated.
>
>
Jim beam's advice is solid. I'd add that I suspect the radiator more than
the thermostat because the heat builds up, but that assumes it isn't the
head gasket.
My own head gasket test is more sensitive but has the disadvantage that the
leak may not be as obvious when cold. I test with a cold engine by removing
the radiator cap and starting the engine. I pinch off the overflow tube and
put the palm of my hand over the radiator opening for a few seconds.
Steadily rising pressure or (worse) pulsations indicate a head gasket
failure.
If either jim's test or mine indicate trouble, shops can do chemical tests
for hydrocarbons in the coolant to confirm the problem.
Mike
news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
>I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I've taken it to 2 mechanics and one says it's the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I'm really confused here. Any help would be
> greatly appreciated.
>
>
Jim beam's advice is solid. I'd add that I suspect the radiator more than
the thermostat because the heat builds up, but that assumes it isn't the
head gasket.
My own head gasket test is more sensitive but has the disadvantage that the
leak may not be as obvious when cold. I test with a cold engine by removing
the radiator cap and starting the engine. I pinch off the overflow tube and
put the palm of my hand over the radiator opening for a few seconds.
Steadily rising pressure or (worse) pulsations indicate a head gasket
failure.
If either jim's test or mine indicate trouble, shops can do chemical tests
for hydrocarbons in the coolant to confirm the problem.
Mike
01-17-2007 | 07:33 AM
#7
Guest
Posts: n/a
Re: 95 Accord runs hot on freeway
"pinkfloyd" <none@000.com> wrote in message
news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
>I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I've taken it to 2 mechanics and one says it's the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I'm really confused here. Any help would be
> greatly appreciated.
>
>
Jim beam's advice is solid. I'd add that I suspect the radiator more than
the thermostat because the heat builds up, but that assumes it isn't the
head gasket.
My own head gasket test is more sensitive but has the disadvantage that the
leak may not be as obvious when cold. I test with a cold engine by removing
the radiator cap and starting the engine. I pinch off the overflow tube and
put the palm of my hand over the radiator opening for a few seconds.
Steadily rising pressure or (worse) pulsations indicate a head gasket
failure.
If either jim's test or mine indicate trouble, shops can do chemical tests
for hydrocarbons in the coolant to confirm the problem.
Mike
news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
>I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I've taken it to 2 mechanics and one says it's the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I'm really confused here. Any help would be
> greatly appreciated.
>
>
Jim beam's advice is solid. I'd add that I suspect the radiator more than
the thermostat because the heat builds up, but that assumes it isn't the
head gasket.
My own head gasket test is more sensitive but has the disadvantage that the
leak may not be as obvious when cold. I test with a cold engine by removing
the radiator cap and starting the engine. I pinch off the overflow tube and
put the palm of my hand over the radiator opening for a few seconds.
Steadily rising pressure or (worse) pulsations indicate a head gasket
failure.
If either jim's test or mine indicate trouble, shops can do chemical tests
for hydrocarbons in the coolant to confirm the problem.
Mike
01-17-2007 | 07:33 AM
#8
Guest
Posts: n/a
Re: 95 Accord runs hot on freeway
"pinkfloyd" <none@000.com> wrote in message
news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
>I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I've taken it to 2 mechanics and one says it's the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I'm really confused here. Any help would be
> greatly appreciated.
>
>
Jim beam's advice is solid. I'd add that I suspect the radiator more than
the thermostat because the heat builds up, but that assumes it isn't the
head gasket.
My own head gasket test is more sensitive but has the disadvantage that the
leak may not be as obvious when cold. I test with a cold engine by removing
the radiator cap and starting the engine. I pinch off the overflow tube and
put the palm of my hand over the radiator opening for a few seconds.
Steadily rising pressure or (worse) pulsations indicate a head gasket
failure.
If either jim's test or mine indicate trouble, shops can do chemical tests
for hydrocarbons in the coolant to confirm the problem.
Mike
news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
>I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I've taken it to 2 mechanics and one says it's the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I'm really confused here. Any help would be
> greatly appreciated.
>
>
Jim beam's advice is solid. I'd add that I suspect the radiator more than
the thermostat because the heat builds up, but that assumes it isn't the
head gasket.
My own head gasket test is more sensitive but has the disadvantage that the
leak may not be as obvious when cold. I test with a cold engine by removing
the radiator cap and starting the engine. I pinch off the overflow tube and
put the palm of my hand over the radiator opening for a few seconds.
Steadily rising pressure or (worse) pulsations indicate a head gasket
failure.
If either jim's test or mine indicate trouble, shops can do chemical tests
for hydrocarbons in the coolant to confirm the problem.
Mike
01-17-2007 | 07:33 AM
#9
Guest
Posts: n/a
Re: 95 Accord runs hot on freeway
"pinkfloyd" <none@000.com> wrote in message
news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
>I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I've taken it to 2 mechanics and one says it's the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I'm really confused here. Any help would be
> greatly appreciated.
>
>
Jim beam's advice is solid. I'd add that I suspect the radiator more than
the thermostat because the heat builds up, but that assumes it isn't the
head gasket.
My own head gasket test is more sensitive but has the disadvantage that the
leak may not be as obvious when cold. I test with a cold engine by removing
the radiator cap and starting the engine. I pinch off the overflow tube and
put the palm of my hand over the radiator opening for a few seconds.
Steadily rising pressure or (worse) pulsations indicate a head gasket
failure.
If either jim's test or mine indicate trouble, shops can do chemical tests
for hydrocarbons in the coolant to confirm the problem.
Mike
news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
>I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I've taken it to 2 mechanics and one says it's the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I'm really confused here. Any help would be
> greatly appreciated.
>
>
Jim beam's advice is solid. I'd add that I suspect the radiator more than
the thermostat because the heat builds up, but that assumes it isn't the
head gasket.
My own head gasket test is more sensitive but has the disadvantage that the
leak may not be as obvious when cold. I test with a cold engine by removing
the radiator cap and starting the engine. I pinch off the overflow tube and
put the palm of my hand over the radiator opening for a few seconds.
Steadily rising pressure or (worse) pulsations indicate a head gasket
failure.
If either jim's test or mine indicate trouble, shops can do chemical tests
for hydrocarbons in the coolant to confirm the problem.
Mike
01-17-2007 | 09:53 AM
#10
Guest
Posts: n/a
Re: 95 Accord runs hot on freeway
pinkfloyd <none@000.com> wrote in news:965002
_e0d918b8d5f7b207ad5d229ebae4e321@autoboardz.com:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I’ve taken it to 2 mechanics and one says it’s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I’m really confused here. Any help would be
> greatly appreciated.
>
If it runs fine on city street but not on the highway, it's most likely a
clogged rad.
A test: Next time it starts to overheat, turn the car's interior heater on
full-hot, along with the fan on full-blast. Does this make the needle go
down? If so, the rad isn't cooling properly.
One thing to check is the fins at the bottom of the rad. If they corrode
and turn to dust, the rad will be unable to shed heat efficiently.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
_e0d918b8d5f7b207ad5d229ebae4e321@autoboardz.com:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I’ve taken it to 2 mechanics and one says it’s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I’m really confused here. Any help would be
> greatly appreciated.
>
If it runs fine on city street but not on the highway, it's most likely a
clogged rad.
A test: Next time it starts to overheat, turn the car's interior heater on
full-hot, along with the fan on full-blast. Does this make the needle go
down? If so, the rad isn't cooling properly.
One thing to check is the fins at the bottom of the rad. If they corrode
and turn to dust, the rad will be unable to shed heat efficiently.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
01-17-2007 | 09:53 AM
#11
Guest
Posts: n/a
Re: 95 Accord runs hot on freeway
pinkfloyd <none@000.com> wrote in news:965002
_e0d918b8d5f7b207ad5d229ebae4e321@autoboardz.com:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I’ve taken it to 2 mechanics and one says it’s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I’m really confused here. Any help would be
> greatly appreciated.
>
If it runs fine on city street but not on the highway, it's most likely a
clogged rad.
A test: Next time it starts to overheat, turn the car's interior heater on
full-hot, along with the fan on full-blast. Does this make the needle go
down? If so, the rad isn't cooling properly.
One thing to check is the fins at the bottom of the rad. If they corrode
and turn to dust, the rad will be unable to shed heat efficiently.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
_e0d918b8d5f7b207ad5d229ebae4e321@autoboardz.com:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I’ve taken it to 2 mechanics and one says it’s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I’m really confused here. Any help would be
> greatly appreciated.
>
If it runs fine on city street but not on the highway, it's most likely a
clogged rad.
A test: Next time it starts to overheat, turn the car's interior heater on
full-hot, along with the fan on full-blast. Does this make the needle go
down? If so, the rad isn't cooling properly.
One thing to check is the fins at the bottom of the rad. If they corrode
and turn to dust, the rad will be unable to shed heat efficiently.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
01-17-2007 | 09:53 AM
#12
Guest
Posts: n/a
Re: 95 Accord runs hot on freeway
pinkfloyd <none@000.com> wrote in news:965002
_e0d918b8d5f7b207ad5d229ebae4e321@autoboardz.com:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I’ve taken it to 2 mechanics and one says it’s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I’m really confused here. Any help would be
> greatly appreciated.
>
If it runs fine on city street but not on the highway, it's most likely a
clogged rad.
A test: Next time it starts to overheat, turn the car's interior heater on
full-hot, along with the fan on full-blast. Does this make the needle go
down? If so, the rad isn't cooling properly.
One thing to check is the fins at the bottom of the rad. If they corrode
and turn to dust, the rad will be unable to shed heat efficiently.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
_e0d918b8d5f7b207ad5d229ebae4e321@autoboardz.com:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I’ve taken it to 2 mechanics and one says it’s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I’m really confused here. Any help would be
> greatly appreciated.
>
If it runs fine on city street but not on the highway, it's most likely a
clogged rad.
A test: Next time it starts to overheat, turn the car's interior heater on
full-hot, along with the fan on full-blast. Does this make the needle go
down? If so, the rad isn't cooling properly.
One thing to check is the fins at the bottom of the rad. If they corrode
and turn to dust, the rad will be unable to shed heat efficiently.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
01-17-2007 | 09:53 AM
#13
Guest
Posts: n/a
Re: 95 Accord runs hot on freeway
pinkfloyd <none@000.com> wrote in news:965002
_e0d918b8d5f7b207ad5d229ebae4e321@autoboardz.com:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I’ve taken it to 2 mechanics and one says it’s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I’m really confused here. Any help would be
> greatly appreciated.
>
If it runs fine on city street but not on the highway, it's most likely a
clogged rad.
A test: Next time it starts to overheat, turn the car's interior heater on
full-hot, along with the fan on full-blast. Does this make the needle go
down? If so, the rad isn't cooling properly.
One thing to check is the fins at the bottom of the rad. If they corrode
and turn to dust, the rad will be unable to shed heat efficiently.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
_e0d918b8d5f7b207ad5d229ebae4e321@autoboardz.com:
> I have a 95 Accord which starts to run hot after about 15 to 20
> minutes of driving on the freeway. It runs at normal temperature on
> surface streets. I know for sure that the fans are working properly.
>
> I’ve taken it to 2 mechanics and one says it’s the main fan motor and
> possibly the thermostat. The other mechanic thinks the radiator needs
> to be replaced due to a clog, and if not that, then it is most likely
> the head gasket leaking. I’m really confused here. Any help would be
> greatly appreciated.
>
If it runs fine on city street but not on the highway, it's most likely a
clogged rad.
A test: Next time it starts to overheat, turn the car's interior heater on
full-hot, along with the fan on full-blast. Does this make the needle go
down? If so, the rad isn't cooling properly.
One thing to check is the fins at the bottom of the rad. If they corrode
and turn to dust, the rad will be unable to shed heat efficiently.
--
Tegger
The Unofficial Honda/Acura FAQ
www.tegger.com/hondafaq/
01-17-2007 | 06:25 PM
#14
Guest
Posts: n/a
Re: Re: 95 Accord runs hot on freeway
Thank you for the great and very helpful replies. I am going to try
the things recommended here. Also, the mechanic that thinks it’s the
radiator, says that since the radiator is plastic, it needs to be
replaced. It cannot be flushed. Is this correct?
Since I have never had to do so, what would be the best place to start
to find a shop that can do the chemical test for hydrocarbons in the
coolant
"Michael Pardee" wrote
> "pinkfloyd" <none@000.com> wrote in message
> news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
> >I have a 95 Accord which starts to run hot after about 15 to
> 20
> > minutes of driving on the freeway. It runs at normal
> temperature on
> > surface streets. I know for sure that the fans are working
> properly.
> >
> > I've taken it to 2 mechanics and one says it's the main fan
> motor and
> > possibly the thermostat. The other mechanic thinks the
> radiator needs
> > to be replaced due to a clog, and if not that, then it is
> most likely
> > the head gasket leaking. I'm really confused here. Any help
> would be
> > greatly appreciated.
> >
> >
> Jim beam's advice is solid. I'd add that I suspect the
> radiator more than
> the thermostat because the heat builds up, but that assumes it
> isn't the
> head gasket.
>
> My own head gasket test is more sensitive but has the
> disadvantage that the
> leak may not be as obvious when cold. I test with a cold
> engine by removing
> the radiator cap and starting the engine. I pinch off the
> overflow tube and
> put the palm of my hand over the radiator opening for a few
> seconds.
> Steadily rising pressure or (worse) pulsations indicate a head
> gasket
> failure.
>
> If either jim's test or mine indicate trouble, shops can do
> chemical tests
> for hydrocarbons in the coolant to confirm the problem.
>
> Mike
--
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the things recommended here. Also, the mechanic that thinks it’s the
radiator, says that since the radiator is plastic, it needs to be
replaced. It cannot be flushed. Is this correct?
Since I have never had to do so, what would be the best place to start
to find a shop that can do the chemical test for hydrocarbons in the
coolant
"Michael Pardee" wrote
> "pinkfloyd" <none@000.com> wrote in message
> news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
> >I have a 95 Accord which starts to run hot after about 15 to
> 20
> > minutes of driving on the freeway. It runs at normal
> temperature on
> > surface streets. I know for sure that the fans are working
> properly.
> >
> > I've taken it to 2 mechanics and one says it's the main fan
> motor and
> > possibly the thermostat. The other mechanic thinks the
> radiator needs
> > to be replaced due to a clog, and if not that, then it is
> most likely
> > the head gasket leaking. I'm really confused here. Any help
> would be
> > greatly appreciated.
> >
> >
> Jim beam's advice is solid. I'd add that I suspect the
> radiator more than
> the thermostat because the heat builds up, but that assumes it
> isn't the
> head gasket.
>
> My own head gasket test is more sensitive but has the
> disadvantage that the
> leak may not be as obvious when cold. I test with a cold
> engine by removing
> the radiator cap and starting the engine. I pinch off the
> overflow tube and
> put the palm of my hand over the radiator opening for a few
> seconds.
> Steadily rising pressure or (worse) pulsations indicate a head
> gasket
> failure.
>
> If either jim's test or mine indicate trouble, shops can do
> chemical tests
> for hydrocarbons in the coolant to confirm the problem.
>
> Mike
--
Posted at author's request, using http://www.AutoBoardz.com interface
Articles individually verified to usenet standards. Visit URL to contact author/report abuse
Thread archive: http://www.AutoBoardz.com/95-runs-ho...ict203686.html
01-17-2007 | 06:25 PM
#15
Guest
Posts: n/a
Re: Re: 95 Accord runs hot on freeway
Thank you for the great and very helpful replies. I am going to try
the things recommended here. Also, the mechanic that thinks it’s the
radiator, says that since the radiator is plastic, it needs to be
replaced. It cannot be flushed. Is this correct?
Since I have never had to do so, what would be the best place to start
to find a shop that can do the chemical test for hydrocarbons in the
coolant
"Michael Pardee" wrote
> "pinkfloyd" <none@000.com> wrote in message
> news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
> >I have a 95 Accord which starts to run hot after about 15 to
> 20
> > minutes of driving on the freeway. It runs at normal
> temperature on
> > surface streets. I know for sure that the fans are working
> properly.
> >
> > I've taken it to 2 mechanics and one says it's the main fan
> motor and
> > possibly the thermostat. The other mechanic thinks the
> radiator needs
> > to be replaced due to a clog, and if not that, then it is
> most likely
> > the head gasket leaking. I'm really confused here. Any help
> would be
> > greatly appreciated.
> >
> >
> Jim beam's advice is solid. I'd add that I suspect the
> radiator more than
> the thermostat because the heat builds up, but that assumes it
> isn't the
> head gasket.
>
> My own head gasket test is more sensitive but has the
> disadvantage that the
> leak may not be as obvious when cold. I test with a cold
> engine by removing
> the radiator cap and starting the engine. I pinch off the
> overflow tube and
> put the palm of my hand over the radiator opening for a few
> seconds.
> Steadily rising pressure or (worse) pulsations indicate a head
> gasket
> failure.
>
> If either jim's test or mine indicate trouble, shops can do
> chemical tests
> for hydrocarbons in the coolant to confirm the problem.
>
> Mike
--
Posted at author's request, using http://www.AutoBoardz.com interface
Articles individually verified to usenet standards. Visit URL to contact author/report abuse
Thread archive: http://www.AutoBoardz.com/95-runs-ho...ict203686.html
the things recommended here. Also, the mechanic that thinks it’s the
radiator, says that since the radiator is plastic, it needs to be
replaced. It cannot be flushed. Is this correct?
Since I have never had to do so, what would be the best place to start
to find a shop that can do the chemical test for hydrocarbons in the
coolant
"Michael Pardee" wrote
> "pinkfloyd" <none@000.com> wrote in message
> news:965002_e0d918b8d5f7b207ad5d229ebae4e321@autob oardz.com...
> >I have a 95 Accord which starts to run hot after about 15 to
> 20
> > minutes of driving on the freeway. It runs at normal
> temperature on
> > surface streets. I know for sure that the fans are working
> properly.
> >
> > I've taken it to 2 mechanics and one says it's the main fan
> motor and
> > possibly the thermostat. The other mechanic thinks the
> radiator needs
> > to be replaced due to a clog, and if not that, then it is
> most likely
> > the head gasket leaking. I'm really confused here. Any help
> would be
> > greatly appreciated.
> >
> >
> Jim beam's advice is solid. I'd add that I suspect the
> radiator more than
> the thermostat because the heat builds up, but that assumes it
> isn't the
> head gasket.
>
> My own head gasket test is more sensitive but has the
> disadvantage that the
> leak may not be as obvious when cold. I test with a cold
> engine by removing
> the radiator cap and starting the engine. I pinch off the
> overflow tube and
> put the palm of my hand over the radiator opening for a few
> seconds.
> Steadily rising pressure or (worse) pulsations indicate a head
> gasket
> failure.
>
> If either jim's test or mine indicate trouble, shops can do
> chemical tests
> for hydrocarbons in the coolant to confirm the problem.
>
> Mike
--
Posted at author's request, using http://www.AutoBoardz.com interface
Articles individually verified to usenet standards. Visit URL to contact author/report abuse
Thread archive: http://www.AutoBoardz.com/95-runs-ho...ict203686.html