Mechanics

GMC SIERRA CHECK ENGINE LIGHT PROBLEM

2008 GMC Sierra • 128,000 miles

What kind of problem would cause automatic truck to have lower power when first driving off, then shift very hard when shifting gears?
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Ktallbull
February 12, 2013.



Check engine light on? Have checked fluid?

Docfixit
Feb 12, 2013.
Yes, check engine light came on them problem started. Did not check fluids.

Tiny
Ktallbull
Feb 12, 2013.
Have codes read at parts store post willl advise

Docfixit
Feb 13, 2013.