4.6 general chat
#6822
97 gt compression
Hello everyone I'm new to this. I'm wondering if someone can help me narrow down the issue I'm having with my 97 gt. I'm misfiring through cylinder 4 and narrowed it down to either bent valve, piston rings/ bottom end. Or maybe even timing. What test can I perform to narrow it down. And the mustang is completely stock.
#6826
I did that and the misfire stayed in the same cylinder. I even changed the fuel injector with a known good one. And still the issue is still there. I check fuel pressure and I got these numbers. 32psi at idle with near full throttle psi jumped to 39psi and fell to 32 while on throttle. Seems like a weak pump. Any input?
#6827
I did that and the misfire stayed in the same cylinder. I even changed the fuel injector with a known good one. And still the issue is still there. I check fuel pressure and I got these numbers. 32psi at idle with near full throttle psi jumped to 39psi and fell to 32 while on throttle. Seems like a weak pump. Any input?
#6828
Definitely agree with WhiteFoxGT .... New to the forum as well but make sure you are getting voltage from the coil. I know its a long shot but the individual coil post could be faulty. Also, check voltage on the injector harness it could be something down stream that is causing the injector not to function.
#6829
Definitely agree with WhiteFoxGT .... New to the forum as well but make sure you are getting voltage from the coil. I know its a long shot but the individual coil post could be faulty. Also, check voltage on the injector harness it could be something down stream that is causing the injector not to function.