My 05 silverado is idling rough. CEL started flashing while parked. Soon after CEL went off and truck was idling fine.
860

Asked by Srvelis1 Dec 21, 2013 at 07:45 PM about the 2005 Chevrolet Silverado 1500 LS Crew Cab 4WD

Question type: Maintenance & Repair

My 05 silverado is idling rough. CEL
started flashing while parked. Soon
after CEL went off and truck was
idling fine. I just filled the tank and
tried to squeeze a little extra fuel in.
Just happened an hour. Any
thoughts.

4 Answers
199,835

dandyoun answered 10 years ago

Filled it up before this happened? Need to stop filling at first click of handle. The extra fuel might have backed up into canister system causing the issue. Not sure just a thought. Have cel codes read to know more about what happened. A blinking cel is not a good thing. When it's blinking you should turn engine off before possible major damage.

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860

Srvelis1 answered 10 years ago

What code should I get if it is a over fill issue?

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860

Srvelis1 answered 10 years ago

Jim: just bought it used with 108k. What do you think, plugs wires, etc?

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Lilnick answered 4 years ago

When U over filling gas tank \ it ruins evap canister .hose is linked from gas tank

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