Originally Posted by jrein
I've been experiencing occasional rough idling from my 3.6 '14 JGC. My dealer hasn't been able to replicate it. Today, I noticed the fuel filler door is lose. There's a significant gap between the filler door and the gasket is meant to cloes against. Maybe this has somthing to do with my engine issue? I checked the filler door an a colleague's car. His sits flush.
Called my dealer and they said to bring it in, they'd be happy to adjust it. Have any of you adjusted this door yourself? Is it easy? Maybe I can save myself a trip to the dealer.
Unless you can see very obviously how to adjust it, I'd give the dealer at least one shot.
The compartment door wouldn't be causing your funny idle, that capless fuel inlet might be leaking a but, but then you'd expect it to throw a MIL.
By any chance are the stations in your area cutting over to winter gas from summer, and you only noticed this recently?
Are you running flex fuel or regular or midgrade?
Does changing brands to Shell, Chevron, etc. for a tankful or two cure it?
[rough idle sucks to isolate unless it is storing codes the techs can pull or something obvious like a loose vacuum hose]