5.0L (1979-1995) MustangTechnical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.
Sponsored by Weld Racing
Welcome to Mustang Forums!
Welcome to Mustang Forums.
You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
i been having a CONSTANT MISS, can't locate the cyl its missing in
done almost everything to correct
MAP (its a SD not MA)
TPS adjusted to .96 (not replaced)
02s (bkk Extensions)
FPR (42 psi with vac off)
car pulls 19lbs of vac at idle and around 22-24 at 2500rpms-4000rpms
Smog deleted, tubed welded shut, ect ect.
narrowed it down to...
Dizzy not being properly installed, but the motor is completely stock so i doubt is ever been taken out.
SD computer is shot?
Already looked at the pistons, cuz I took the engine apart for new gaskets and cleaned the heads and pistons and U/L intake with intake cleaner
This ad is not displayed to registered or logged-in members. Register your free account today and become a member on Mustang Forums!
well for one have you done a compression test on all cylinders?? that'll rule out an internal problem.....also un plugging an injeector one by one can locate the prob cylinder.. by finding the cyl where no load change is detected when injector is un plugged..same can be done with ignition wires
Originally Posted by dudegirl
Be polite and cordial when you talk to them, as pissing off the guys that can help you is seldom a good idea.
if a valve was not seating properly it would cause a miss.
i just helped a guy at work w/ his lightning. he knew he had a miss and he was going to put a built motor in and get his intake ported. well when we pull the intake, #6 intake port had alot of carbon/oil buildup in the intake port, thats where his problem was at.
This forum is owned and operated by Internet Brands, Inc., a Delaware
corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford
Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor