I have a 2007 GT (5 speed) which has been (and currently is in) the dealers shop for repairs. It's been in about a week this time, and they can't duplicate the problem to pinpoint the culprit. Here's the problem: It's happened 3 times over the past year. The first time shifting from 2nd to 3rd, the other two times shifting 1st to 2nd. RPMs were no where near excessive (3500 at most) each time. Each time the Mustang lost power (a lot of power), began skipping, missing and in the first instance backfired. I pulled over and looked under the hood for anything obvious, but nothing. After 10 - 15 minutes, crank it up and runs like a top. I thought the first time it happened that it was bad gas, but the second time the "check engine" light locked in. When I took it to the shop then, the dealer replaced a sensor on the computer (don't ask me which one, I'm not much of a mechanic). I was told that the engine was only firing on 4 cylinders due to the bad sensor. After about 3 months, it's back in the shop again with the same problem.
Any advice would be appreciated, I'm tired of driving that loaner Focus from the dealer.
Any advice would be appreciated, I'm tired of driving that loaner Focus from the dealer.