Loss of power

Asked by GuruBQ5Q Apr 10, 2017 at 09:00 PM about the 2001 GMC Sierra 2500HD 2 Dr SLE 4WD Standard Cab LB HD

Question type: Maintenance & Repair

I have a 2001 GMC Sierra 2500 diesel it lost power
going down the highway and wouldn't go over 65
mph check engine light came on  but now it's
running normal I want to see what can I do to fix
the problem.

2 Answers
157,475

Bob answered 7 years ago

Sounds like it may have got some air into the fuel system. Check the fuel filter for leaks and moisture.

Mark helpful

Your Answer:

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