2010 GMC Sierra Denali Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 2010 GMC Sierra Denali

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2010 GMC Sierra Denali Problems

Check Engine Light Due to Gas Cap Issue

Illumination of the Check Engine Light can be caused by a loose or worn gas cap.

Stalling or Low Engine Idle Speed Due to Dirty Throttle Body

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.

Steering May Develop Clunk Noise From Upper Intermediate Steering Shaft

The steering may develop a clunk type noise from the upper intermediate steering shaft.  Our technicians tell us that you should check with you local GM dealer to find out what the latest repair is for this condition.

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2010 GMC Sierra Denali Questions

why when temp is below 80 will turn over start then die for about 15-20 minutes (1 answer)

only happens on cool mornings after its warmed up runs great says "engine power is reduced" and "service theft deterrent system"

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2010 GMC Sierra Denali Reviews

Rated
based on 1 customer reviews
6.2 liter sounds like a deisel-very noisy. 6 speed trans vibrates in 6th gear. Dealer said they all do that! Still trying to get fixed under warranty. DON'T buy a 2010 Sierra Denali!

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