Hello - I have a 1991 Chevy Caprice 351 Eng. With 80,000 miles.
For the last few months the temperature guage has been acting very strange. Soon after I start using the car each day (especially on highways) the temp. Guage goes all the way past the red zone. Also, the overheating light & the service engine light come on. This happens for about 1 minute, then the temp. Guage quickly falls back to the normal area. And both of the indicator lights go out. There is absolutley no evidence of overheating. My mechanic has changed the entire instrument cluster in addition to the Buffer. My mecanic has also tested the electrical circuts as well as the system codes but everything looks normal. There has been no lose of anti-freeze & the
radiator remains at the correct level. Sometimes after the car has been parked for an hour or more the temp. Guage goes to the 3 quarter mark and then falls back to normal. The car drives OK.
but because of this problem, I have no real way of knowing if &
when the car might be overheating - until it's to late.
This problem has really got me stumped. Any ideas as to what
the problem might be would be greatley appreciated.
have the same problem?
Tuesday, March 20th, 2007 AT 5:04 PM