I have a 1999 Z71 with the 5.3. On cold morning starts, it’s hesitant and you have to really mash on the gas pedal to go. I was wondering if this is a common problem?

I have a 1999 Z71 with the 5.3. On cold morning starts, it’s hesitant and you have to really mash on the gas pedal to go. I was wondering if this is a common problem?

The question is what is the operating temperature when you start off on these cold mornings? If you do not let the engine get up to 210 degrees it may be a false reading in the computer and that almost always can lead back to the coolant temp sensor.

—Gerald Wheelus
Edgewood Auto Parts #253, Edgewood, Texas

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