Help!!! - Ford Mustang Forum

CobraCutie02 · 08-13-2007, 08:32 AM

I have had it. I have never had a car stump me like this one. I have a 2002 Mustang with a Auto and a 3.8L. The car is chugging in reverse and upon acceleration. I had it tuned up and it was great for about 100 Miles, I changed the fuel pump, pressure was jumping all around. I checked the EGR Valve and it is working fine.

I checked the resistance of the coil, and it came back at 12.05 on all three pairs. Good Throttle position sensor, and mass air is clean with a fresh filter. HELP. I can't sleep.

roush427R · 08-13-2007, 08:33 AM

is your transmission just not dropping into gear maybe?

CobraCutie02 · 08-13-2007, 08:35 AM

no...I checked this, it seems to be shifting through just fine...

roush427R · 08-13-2007, 08:36 AM

check the tranny fluid and the u-joints.

is your check engine light on?

is the car missing anything at all?

did you forget that its an automatic v6 mustang?

did you replace the fuel filter when you put in a new fuel pump?