"MLD" <MLD@verizon.net> wrote in message
news:HSrFe.6458$Sr2.3181@trndny03...
>
> "rynniki" <rynniki@wmconnect.com> wrote in message
> news:a4810887d0441cb1bf31a482d5770e97@localhost.ta lkaboutautos.com...
>> my gauge was all the way up to hot then it would drop all the way to
>> normal, the car was not overheating it seemed like the guage was stuck
>> and
>> it would go all the way up when the car was on but not running ,so they
>> changed my temperature sensor,it was fine for 2 days then it did it
>> again,it shot up when i started the car and after the car was runnng for
>> 3
>> monutes or so it dropped to normal. what could be wrong??? could it be my
>> gauge? water pump and radiator and thermostat is fine..thanks guys
>>
> It could very well be a sticky thermostat. Two approaches: 1st: Take the
> radiator cap off. Let the engine warm up; you can tell when the
> thermostat
> opens because the hose feeding the radiator will suddenly get very hot.
> You
> need a thermometer that will give you a good reading in the 200 to 250F
> range. When the hose gets hot have the thermometer in the neck of the
> radiator and note the temperature. Well over the stat opening temp would
> place a lot of suspicion on the stat. 2nd: Just replace the stat if you
> can.
> MLD
>
>
Although in another post the OP mentioned it would do it the moment the key
was turned on in the morning, so it has to be a false reading.

Mike

 

"MLD" <MLD@verizon.net> wrote in message
news:HSrFe.6458$Sr2.3181@trndny03...
>
> "rynniki" <rynniki@wmconnect.com> wrote in message
> news:a4810887d0441cb1bf31a482d5770e97@localhost.ta lkaboutautos.com...
>> my gauge was all the way up to hot then it would drop all the way to
>> normal, the car was not overheating it seemed like the guage was stuck
>> and
>> it would go all the way up when the car was on but not running ,so they
>> changed my temperature sensor,it was fine for 2 days then it did it
>> again,it shot up when i started the car and after the car was runnng for
>> 3
>> monutes or so it dropped to normal. what could be wrong??? could it be my
>> gauge? water pump and radiator and thermostat is fine..thanks guys
>>
> It could very well be a sticky thermostat. Two approaches: 1st: Take the
> radiator cap off. Let the engine warm up; you can tell when the
> thermostat
> opens because the hose feeding the radiator will suddenly get very hot.
> You
> need a thermometer that will give you a good reading in the 200 to 250F
> range. When the hose gets hot have the thermometer in the neck of the
> radiator and note the temperature. Well over the stat opening temp would
> place a lot of suspicion on the stat. 2nd: Just replace the stat if you
> can.
> MLD
>
>
Although in another post the OP mentioned it would do it the moment the key
was turned on in the morning, so it has to be a false reading.

Mike

 

thanks guys for your help i will keep an eye on it

 

thanks guys for your help i will keep an eye on it