2003 Ford Ranger Repair Question
2003 Ford Ranger Misses at idle
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 ?
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.
8.EGR valve that is leaking.
10.Throttle position sensor.
11.Idle air control valve.
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