Question about 2000 Chevrolet Blazer

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Replaced a thermostat on a 200 chevy blazer and the service light

Came on. Truck is running fine and everthing, no major problems and now the light is on. What could be the problem or problems?

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Many auto parts stores will scan your vehicle for no charge to indicate what trouble code has been set to cause the light to come on.

If the thermostat is not an OEM part then it is possible that the response of the thermostat is the culprit. The engine control system expects the thermostat to open within a certain run time. If the thermostat is sluggish in opening, the trouble code can be set / light turned on.

Posted on Jan 10, 2009

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Low coolant, gas cap not tight, few other minor things. pay a mechanic 40 bucks to have them scan it in case it's something big.

Posted on Jan 07, 2009


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