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6.2 L Gmc Denali Check Engine Light

GWFETTY

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GWFETTY New Member

GWFETTY

Posted
Posted

I HAVE A NEW 6.2 L GMC DENALI AWD (2008). RUNS FINE. WHEN I USE THE REMOTE START, THE TRUCK WILL RUN FOR A MINUTE OR LESS AND THEN SHUT OFF. THE CHECK ENGINE LIGHT COMES ON. I CAN START THE TRUCK AND IT WILL RUN OK, BUT THE CHECK ENGINE LIGHT STAYS ON AND I CAN'T USE THE REMOTE START. I TOOK IT TO THE GMC DEALERSHIP AND THEY SAID THE LIGHT WAS CAUSED BY AN EMISSIONS PROBLEM AND RESET IT. THEY SAID THERE IS A SPECIAL FIRING SEQUENCE WHEN THE REMOTE START IS USED TO MAKE THE TRUCK HEAT UP FASTER. I JUST HAD THE SAME THING HAPPEN AGIAN. ANYONE ELSE HAD THIS PROBLEM OR ANY IDEAS WHAT IT COULD BE? THANKS FOR ANY IDEAS. I'M TAKING IT IN AGAIN TOMMORROW AND I WILL POST AN UPDATE.

Darkanion Senior Enthusiast

Darkanion

Posted
Posted
I HAVE A NEW 6.2 L GMC DENALI AWD (2008). RUNS FINE. WHEN I USE THE REMOTE START, THE TRUCK WILL RUN FOR A MINUTE OR LESS AND THEN SHUT OFF. THE CHECK ENGINE LIGHT COMES ON. I CAN START THE TRUCK AND IT WILL RUN OK, BUT THE CHECK ENGINE LIGHT STAYS ON AND I CAN'T USE THE REMOTE START. I TOOK IT TO THE GMC DEALERSHIP AND THEY SAID THE LIGHT WAS CAUSED BY AN EMISSIONS PROBLEM AND RESET IT. THEY SAID THERE IS A SPECIAL FIRING SEQUENCE WHEN THE REMOTE START IS USED TO MAKE THE TRUCK HEAT UP FASTER. I JUST HAD THE SAME THING HAPPEN AGIAN. ANYONE ELSE HAD THIS PROBLEM OR ANY IDEAS WHAT IT COULD BE? THANKS FOR ANY IDEAS. I'M TAKING IT IN AGAIN TOMMORROW AND I WILL POST AN UPDATE.

 

I have not experience this issue with mine. Let us know what they come up with for a solution.

  • 2 weeks later...
Bostonsfavson Senior Enthusiast

Bostonsfavson

Posted
Posted

Just saw this thread. I hope your problem went away, but if not try this: disconnect the negative battery terminal for at least 30 minutes. I was having a similar problem and this cleared it up. It's amazing what resetting everything will do.

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