Mechanics

MISFIRE

1999 Chevrolet Tahoe • V8 2WD Automatic • 400,000 miles

My 99 chevy tahoe misfires after a rain or when its damp. I've replaced the distributor, ignition wires, rotor button, and sprayed everything with silicone. After the car warms up, the misfiring stops. What is causing this problem?
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Merting
August 15, 2011.




Could be dirty injectors. I recommend having them professionally pressure cleaned. Nothing added to the tank will help.

Wrenchtech
Aug 15, 2011.


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