Rep Power: 689

ive changed the battery, and alternator, and have had a electrical test, and nothin has been found, it happens mostly when I am driving at night and my headlights are on, any suggestions to what could be wrong? it looks like a ground has been cut that attachs to the motor, could this possibly be the problem?

thanks

 
Rep Power: 675

Check your distributor... grounds are important too; that would definately cause this problem.

What car do you have, that would help.

 
Rep Power: 651

a ground would do that even if it wasnt cut just not making a good conection let alone cut