Chevrolet Avalanche 1500 Problem Report
Chevrolet Avalanche 1500 Check Engine Light Due to Gas Cap Issue
Illumination of the Check Engine Light can be caused by a loose or worn gas cap.
Changed Gas Cap like Auto parts repair said to do and did not fix the problem. - 4thgeer
Problem: engine light on due to gas cap. I bought new gas caps several times. Now it says tighten fuel cap. - Visitor
check engine light and tighten full cap display - Visitor
I've had a continuing "check engine" light from a code indicating a vapor leak in the fuel system. After a couple of times resetting the light with a portable instrument (after clicking down on the gas cap), I changed the cap. That was in late February of 2012. Just last week, after getting fuel, the check engine light is on again. - Visitor
Light was on, then reset by my repair shop. They said to drive it 50 miles and come back. I drove it about 70 miles and it came back on. Cause and repair are undetermined at this time. - Visitor
MIL light came on and OBDII code reader indicated an "Open EEC Circuit" condition. Problem cleared by replacing gas cap with a "new" lockable cap and resetting the MIL light. - Visitor
check engine light Tighten gas cap new gas cap no change - Visitor
Check engine light came on in 2012 after gassing up and is still currently on. - Visitor
Autozone verified code and cleared it out for free. - Visitor
same issue replace cap still cjeck eng lighy - Visitor
faulty gas cap - Visitor
Notice of "check Gas cap" came up dashboard Tuesday. Gas cap was tight. Repair shop Cleared cod...
Check engine light on, i'm told its almost always gas cap, by friends and by guy who hooked it...
Gas will not enter tank without the pump shutting off every two tenths of a gallon
check engine light always on makes noise when you turn on and while driving.Interior lighting i...
so far nothing has happened ...i was told that it was to due with the sealed fuel system ??......