*MISFIRE*

2001 Ford Mustang

Tiny

biront

June, 9, 2010 AT 1:07 PM

Engine Performance problem
2001 Ford Mustang V8 Two Wheel Drive Manual 116000 miles

bought it used, started a misfire only with a load on the engine. Not enough to send the check engine light on but u can hear it and feel the loss of horsepower. Replaced the mass airflow sensor, plugs, and injectors. Didnt fix it, it does this occasionally for however long it wants to.

FOUND 2124 RELATED QUESTIONS

Mis Fire -

17 ANSWERS
11 IMAGES

1 Answer

Tiny

rasmataz

June, 9, 2010 AT 1:14 PM

Engine running rough or misfiring can be cause by the following: 1. Defective spark plug.
2. Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4. False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.

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