Question about 2000 Buick Park Avenue

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Service engine light on.

Service engine light is on and the tech at auto zone says the computer says it is having thermostat problems. The thermostat in the car never makes it to the center and stays near cold. How much does it usually cost to fix this. Also I know the intake gasket needs to be changed. Should I have the thermo fix then and also have the dexacool flushed from the system?

Posted by s_mitch252 on


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U will need to have the thermostat replaced, the system senses it is running cold and turns on the light, cold running engines burn allot of fuel and produce lot s of unburned fuel out the tailpipe, this, check your coolant is it is clean and still yellow or green just have the thermostat replaced and the system topped off with coolant, about $100 US for the job I would guess would be an average figure.

Posted on Mar 15, 2009

  • Marvin
    Marvin Mar 15, 2009

    On the coolant, u need not by the exact GM coolant, just use any of the new extra long life coolants out there, they are much cheaper and will meet the manufacturer's requirement's just fine.



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