1988 Ford F350

1988 FORD F-350
150,000 MILES • V8 • 4WD • MANUAL
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CHERRI_1152
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  • 1 POST
IT WAS THROWING 4 DIFFERENT CODES, I REPLACED THE HPFP, EGR VALVE, EGR SELONOID, AIR PRESSURE TEMPERATURE VALVE, NOW IT IS NOT SHOWING ANYMORE CODES, BUT IT RUNS LIKE GARBAGE AFTER 2000RPMS.
Feb 17, 2008 at 10:57 AM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
When last tune-up?

https://www.2carpros.com/articles/engine-misfires-or-runs-rough

1.Defective spark plugs
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.
10.Throttle position sensor.
11.Manifold absolute pressure sensor
12.Mass Airflow Sensor
13.Idle air control valve

Note: If it doesn't apply disregard it-
Oct 10, 2011 at 9:43 PM
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