Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
Hi, My name is ***** ***** for the delay.
I will do my best to assist you
what engine do you have?
ok,does it idle well?
lets try something simple..
remove the intake air duct and clean the inside of the throttle body,,these can get dirty with black soot and cause this problem..
let me know
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The throttle body for the TAC system is similar to a conventional throttle body with several exceptions. One exception being the use of a motor to control the throttle position instead of a mechanical cable. Another exception is the new design Throttle Position (TP) sensor. The TP sensor mounts on the side of the throttle body. The TP sensor is actually two individual TP sensors within one housing. Two separate signal, ground and reference circuits are used to connect the TP sensors and the TAC module. The TP sensor signal voltage increases as the throttle opens.
yes,i will be on and off here all night..
clean it with carb cleaner
then let me know