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GMC Sierra 1500 HD Problems

Stalling or Low Engine Idle Speed Due to Dirty Throttle Body on GMC Sierra 1500 HD

Problem Description and Possible Solution

A dirty throttle body may cause a lower than normal idle and possible stalling condition. Performing a throttle body service will commonly correct this concern.

(9 people reported this problem)

GMC Sierra 1500 HD Vehicles With This Problem

RepairPal Verified
Average mileage: 120,000 (120,000–120,000)
7 model years affected: 2001, 2002, 2003, 2004, more2005, 2006, 2007
Not Your GMC Sierra 1500 HD Problem?
Brake problem? Or maybe a faulty head gasket cylinder?
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