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  1. M

    Help! Is my A9L Messed Up?

    Hi guys! Although I've read a few posts by other users my questions are still not answered so I hope someone can help me. My 89 Mustang GT has a lot of codes and I mean A lot. I ran the KOER test and it gave me codes 098 and 054. Not bad right? Wrong! When I ran the KOEO test I got the...
  2. M

    Help!!! Car idle is rough and It overheats!

    I have a 1989 Ford Mustang 5.0 with the tremec 5 speed tranny. I just upgraded my engine to a 331 stroker kit. It has everything new. I spent about $2400 in parts and labor. I put a Crane 282 Cam, Mahle Pistons, and Eagled Crank. I have new roller lifters, and Crane timin set. New water pump...
  3. M

    Help My Mustang is acting crazy!!

    Hello. my 89 Ford Mustang 5.0 started acting weird this past week. It was running fine and everything until one day as I was driving and I came to a red light all the car power just died and it didn't start. I bought a new battery and the car started, the next day it did the same thing at about...
  4. M

    89 Mustang 5.0 Vibrates after hitting 60MPH

    Hi, there I have a 1989 Ford Mustang 5.0 that vibrates when just after I pass the 60 MPH mark, the tires are brand new and are balanced. I have replaced the rear horizontal shocks. I don't know what could be causing the problem. Could it be the differential or the rear axle? The car runs good...
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