My brother has a 97 mustang gt and he is getting a studder in it when he exccelerates. He changed plugs and wires and he said he gapped the plugs. Both coil packs have been replaced and i cleaned the mas air flow sensor. Any other suggestions would be great!
The motor is misfiring. Sounds like your hardware is a-ok tho. Try regapping plugs to something tighter, like 0.040" or 0.035". If not, try new PCM calibration from Ford dealer, but that runs $80. Fixed my 99 GT that was doing the same ****.
My car was doing something similiar, i dunno how well this is, but i unplugged my maf sensor and it seemed to run a little better, so i just got another maf sensor and my problem was solved.
to be honest.. if you remove the MAF.... and it smooths out.. :Your throttle response should go to hell... cause your computer doesnt know what is going on. So it reverts back to the dump fuel command and blindly shoots fuel into the engine... If if didnt do anything.. which is kinda bad.. it is your MAF
thanks for all the help. but i think i found the problem. we changed the alt the other day and i pulled the spark plug wires from the plug and found that coolant had got down in there and upon futher inspection i seen that the thermostate housing is leaking on the bottom.