Dropping speed.

Asked by Mrdejesus Apr 05, 2019 at 02:33 PM about the 2003 GMC Yukon SLT 4WD

Question type: Maintenance & Repair

Lately my wife’s truck has been dropping speed.
She could be on the highway doing the speed limit
and the truck will start to drop speed and what it
sounds like backfiring.

Has this happened to anyone else with their truck.

1 Answer

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