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International Automotive Technicians Network
Tip-in hesitation
Posted to Technical Discussion Forum on 10/11/2011 38 Replies

Hi TDF folks,

This truck has me stumped. Customer complaint was hesitation when accelerating, almost stalling and low power. I was not able to verify any of that. The only DTC stored was/is a U1000, there is no communication with the ATC module.

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car Vehicle Data

2002 GMC Envoy XL SLE 4.2L Hesitation

Engine4.2 L
Trans4-speed Automatic (Electronic)
SymptomsHesitation

car Vehicle Data

2002 GMC Envoy XL SLE 4.2L Hesitation

Engine4.2 L
Trans4-speed Automatic (Electronic)
SymptomsHesitation