5.0L (1979-1995) Mustang Technical 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.

5.0 still missing need help

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Old Apr 12, 2013 | 10:47 PM
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Default 5.0 still missing need help

Ok my car is missing when pulling. I have changed plugs, wires, distributor, distributor cap, coil,egr, constant control module, ignition module, air filter, checked timing and compression I'm out of ideas also ran all new exhaust.
Old Apr 12, 2013 | 11:00 PM
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TFI module? Checked your wiring to the dizzy?
Old Apr 12, 2013 | 11:15 PM
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[QUOTE=Maxwelhse;8192368]TFI module? Checked your wiring to the dizzy?[/QUITe
Forgot about the tfi but wouldn't that just make the car die and yes wiring is right.
Old Apr 12, 2013 | 11:31 PM
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what plug gap...youll be surprised. .042-.048" is best NOT .054"

and PLEASE dont tell me you have platinums....please
Old Apr 12, 2013 | 11:50 PM
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[QUOTE=jboggs_23;8192380]
Originally Posted by Maxwelhse
TFI module? Checked your wiring to the dizzy?[/QUITe
Forgot about the tfi but wouldn't that just make the car die and yes wiring is right.
A flaky TFI can do all sorts of weirdo things...

Like N2O said.. No fancy plugs... Autolite FTW!
Old Apr 13, 2013 | 11:59 AM
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Originally Posted by nitrous_bob
what plug gap...youll be surprised. .042-.048" is best NOT .054"

and PLEASE dont tell me you have platinums....please
Plugs are autolite double platinum and mad wires.
Old Apr 13, 2013 | 09:45 PM
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I've seen a dirty MAF cause missing at higher rpms / loads.
Old Apr 13, 2013 | 09:52 PM
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Originally Posted by wydopnthrtl
I've seen a dirty MAF cause missing at higher rpms / loads.
Replaced the tfi and still missing around 3600 rpms. Idles perfectly and revs great just when constant at 3600?
Old Apr 13, 2013 | 11:52 PM
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I would swap the fancy plugs for some good old normal autolites... I believe 24s are what you're after.
Old Apr 14, 2013 | 06:42 AM
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Have you had your fuel pressure tested? Could be as simple as changing the fuel filter



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