Just curious, has the rim of the filler neck been checked for pitting or rust that could cause the cap gasket to not seal properly?
I assume so, but I will ask and check it myself.Just curious, has the rim of the filler neck been checked for pitting or rust that could cause the cap gasket to not seal properly?
Oh, wow. That's not nearly as bad as I was anticipating. (PTSD from the clutch on this, and fuel pump on a Mustang 😅 )This is from an older manual, but should give you an idea:
The 2014 service manual including fuel system info is here:
2014 Jeep Patriot Service Manual (sectioned)Jeep Patriot 2014 Service Manual in sections so you can download only the parts you need (PDF). Accessories and Equipment 2014 ACCESSORIES AND EQUIPMENT Amplifier (AMP) - Electrical Diagnostics - Base 2014 ACCESSORIES AND EQUIPMENT Audio (Radio) - Electrical Diagnostics 2014 ACCESSORIES AND...www.jeeppatriot.com
Thanks. Sounds like these filler necks are super soft. I'll definitely take a better look at that before doing anything else.When my gas cap light came on, the first thing I did was to run to Autozone and get a replacement. That didn't help, so I went and got an OEM one from the dealer. That didn't help either. I then examined the top of the filler neck after reading threads on here. There were some small dings and pits from the gas nozzle hitting it when filling up. I stuffed a rag in the filler neck to keep debris out, then took some fine emery cloth and sanded around the neck opening until it was all nice and shiny and smooth. Then I removed the rag and spread a thin layer of silicone grease around the top of the neck. Gas cap light hasn't come back on in 2 years.
It is entirely possible that there is a small crack in the neck or rubber hose down by the tank which would require replacing the neck, but it's always best to check the little things first.
Edit: noticed you're new, welcome.