Flashing engine light

Asked by Ant74moe Dec 10, 2020 at 05:23 PM about the 2007 GMC Envoy Denali 4 Dr SUV 4WD

Question type: Maintenance & Repair

I have a 2007 GMC Envoy Denali with the 5.3 Vortec engine
I have a flashing engine light and it's losing power

2 Answers
11,255

FJ4072 answered 3 years ago

Don't drive it with flashing CEL. Likely you have a misfire. Have the codes read to see which cylinder is misfiring and go from there or report back.

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3,055

JRKMotorZ answered 3 years ago

That's definitely a misfire. You should get it fixed ASAP otherwise you'll ruin your catalytic converter.

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