Question about 2000 Chevrolet Silverado 1500

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Temp gauge drops to zero and then engine chugs

When the temp gauge drops the engine chugs and is under powered for the two hour drive. The check engine light does not come on in the truck and my code reader says there are no trouble codes or pending codes. Could the compter be going out?

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It is not likely that it is a computer problem if there are no trouble codes.

Have you considered the thermostat? If it is sticking, it would cause the engine to run cool (or hot depending on what position it is sticking in). The truck could be adjusting it's fuel/air ratio to compensate for the cool temps, thus causing the engine to run poorly.



Posted on Jan 10, 2009

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I'd guess coolant temperature sensor is acting up, located at front of the cylinder head area I believe. Does it almost feel like it's flooding out when this occurs, any black smoke signs in tailpipe?

Posted on Jan 10, 2009

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