1988 Ford F350

150,000 MILES • V8 • 4WD • MANUAL
Avatar
CHERRI_1152
  • MEMBER
  • 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 2:57 AM
Advertisement
Avatar
RASMATAZ
  • ✓Experienced Mechanic
  • 75,988 POSTS
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 2:43 PM
Add a reply
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.

Frequently Asked Problems for This Vehicle