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GMC Sierra 2500 HD Problems

Stalling or Low Engine Idle Speed Due to Dirty Throttle Body on GMC Sierra 2500 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.

(10 people reported this problem)

GMC Sierra 2500 HD Vehicles With This Problem

RepairPal Verified
Average mileage: 186,262 (112,525–260,000)
Engines affected: 6.0L V8, Gasoline
7 model years affected: 2001, 2002, 2003, 2004, more2005, 2006, 2007
Not Your GMC Sierra 2500 HD Problem?
Brake problem? Or maybe a faulty head gasket cylinder?
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