MISSES AT IDLE

2003 Ford Ranger

Tiny

creaker

July, 20, 2010 AT 5:05 PM

Engine Performance problem
2003 Ford Ranger 6 cyl Two Wheel Drive Automatic 41000 miles

2003 ford ranger with 41000 miles. Bought truck from an individual had 26000 miles, engine idles rough, it has since I bought it. It has a dead miss at about 80-85 miles per hour. Somebody fooled with plug wires. I changed plugs and air cleaner. Checked for vacum leak. Did not find any. What do you think?

FOUND 4236 RELATED QUESTIONS

Running Rough

27 ANSWERS
34 IMAGES

Idles Rough/changed Ects

37 ANSWERS
3 IMAGES

1 Answer

Tiny

rasmataz

July, 21, 2010 AT 5:26 AM

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.
10. Throttle position sensor.
11. Idle air control valve.

Please login or register to post a reply.

Code Read Retrieval/Clear
How to gather codes Ford Explorer
Code Read Retrieval/Clear Mercedes Benz
 Step by Step video GMC Yukon XL 2000-2006