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Why would the check engine light come on intermittently on a 1991 Chevrolet G20 Van as it is running fine?
Wiki User
∙ 15y ago
It is very possible that you have a carbon build up and occasionally a piece lodges in the EGR valve.
Wiki User
∙ 15y ago
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What is the firing pressure inside of the cylinder of a Chevrolet 305 V8 running 2500 rpm's?
It is the same as it is when you check the compression when the engine is not running. It does not change. It will only get worse as engine wears with time and as miles start adding up on the engine.
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If your engine light comes on and your temp gauge is lower then normal. listen for cooling fans. if they are also running chances are you need a new thermostat
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Why is the check engine light on in 2006 Chevrolet Uplander?
Bill Greene
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