MY 99 YUKON WILL NOT START AFTER CRANKING

1999 GMC Yukon

Tiny

Anonymous

November, 24, 2012 AT 2:51 AM

My 99 Yukon will not start after cranking.I do not hear the humming of the pump when I turn the key.I have replaced the pump relay but no start

FOUND 50466 RELATED QUESTIONS

1 Answer

Tiny

Jacobandnickolas

November, 24, 2012 AT 2:53 AM

Make sure the fuel pressure is within spec and check for a hot blue snapping spark to the plugs. One will be missing. NOTE: Even though you hear the fuel pump. It may not be producing enough pressure to run the engine.

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