Limp mode?

Asked by Mar 18, 2017 at 06:26 PM about the 1998 GMC Sierra 1500 C1500 SLE Extended Cab LB

Question type: Maintenance & Repair

Today I locked my keys in truck.  After getting it
unlocked I noticed that my speedo and rpm gauge
were not working. Also, taking off very sluggish
and seems to not want to shift out of 3rd gear.   
Please help

1 Answer

79,645

Have the trouble codes read. The keys in the trunk were just a coincidence.

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