1999 gmc yukon sle 5.7 vortec ecmb fuse hot but does not blow. Replaced fuel pump, harness, and relay. No engine light on and checked all grounds. Any thoughts?

Asked by greasyhands Jun 22, 2013 at 10:15 PM about the 1999 GMC Yukon SLE 4WD

Question type: Maintenance & Repair

Fuse won't blow but gets gets so hot it melts! Could it be in the computer? But no engine
light on. Starts up every time. Running out of leads.

1 Answer

migration_judge_roy answered 10 years ago

it's your grounding...battery to chassis...chassis to engine...be sure ever connection is happy with 300 CCA...assure the battery is newer than five years old....buy a new battery...failing ground can lead to all manner of mishaps with electronics....especially those that are solid-state or microchip driven~

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