Everytime I use this after market locking gas cap from Auto Zone the gas cap lights on my dash followed 15 minutes later by the CEL and it idles rough. Anyone else experience this. I'm going to the dealer next but wonder if Ford's will make a difference.

 

Its probably not sealing properly. FWIW I had a ford locking cap on my ranger and never had any issues

 

Aftermarket accessories are never as good as ones built specifically for the vehicle.

 

sometimes aftermarket parts are a lot better than the ones built for the vehicle. its if your buying proven brand name parts or ebay ****

 

I called the dealer parts dept. and would you believe they said they don't make a locking gas cap for my vehicle. Makes you wonder.

 

See what i mean Kyle?!? haha!