1998 Chevy Cavalier Cavalier Overheating

DARLANGLE

MEMBER
1998 CHEVROLET CAVALIER
4 CYL
2WD
AUTOMATIC
132,000 MILES

I have had the head gasket replaced the thermostat 3 times the water pump twice the fan motor checked coolant sensor replaced the cooling gage replaced the radiator replaced and the heads machined. This car is still running hot. And belive it or not it seems to run hotter when I turn on the heater. I have also noticed some grey smoke coming out of the tail pipe. Please give me some advice I am out of resources. Please Help Thanks so much

3 Replies

JACOBANDNICKOLAS

MECHANIC
109,709 POSTS

Have you replaced the radiator hoses? This may sound stupid, but I've seen weak radiator hoses collapse when under a vacuum from the pump (lower hose) causing the flow of coolant to basically stop. It's worth looking at since there is really nothing else to replace. Also, is the car running good? Does the timing seem ok?

Joe

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Friday, October 31st, 2008 AT 11:33 AM

DARLANGLE

MEMBER
1 POST

I have looked at all hoses all seem to be ok. But now it is making a knocking noise from the motor. Not sure what to do at this point. I have spent 3000 on the repair for this car and have found that none has fixed the problems.

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Friday, November 7th, 2008 AT 8:10 PM

JACOBANDNICKOLAS

MECHANIC
109,709 POSTS

Hi:
If you're getting a knock from the engine, check the oil to make sure collant isn't getting into the crankcase. Let me know what you find.

It sounds like there is a head / gasket problem again which may be causing other problems for you.

Joe

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Monday, November 10th, 2008 AT 2:09 PM