Won't start

Asked by Lost185 Jan 20, 2018 at 10:05 AM about the 1999 GMC Yukon SLT 4WD

Question type: Maintenance & Repair

Replaced fuel pump and fuel filter but still will not
start. Any suggestions?  Did some research and
could it possibly be my O2 sensor

2 Answers
34,280

charles answered 6 years ago

does it crank? do you have spark? are you sure your getting fuel? O2 sensor will not cause a engine to not start.

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10

Guru5LD8G answered 6 years ago

CHECK YOUR FUEL PUMP FUSE,CHECK FUEL PRESSURE,CHECK FOR SPARK, CHECK INJECTOR PULSE. ASSUMING THE ENGINE CRANKS

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