About a month ago my dealer replaced the sender assembly on my gas tank because the check engine light was on and the fuel gauge wasn't operating correctly. All has been fine since then, but a couple of days ago the check engine light came back on. Is there anything I can check myself, or should I just take it back to the dealer? Seems like I've been at the dealer far too much recently. Thanks.

 

Take it to an autozone and they will read the engine code for free. Then you will at least know what the problem is without having to take it to the dealer.

 

Yea.. Autozone can check it...

Also - anyone with a Preditor can check it for you to. (Running diagnostics and code reads works on any mustang with your preditor.)