Engine Performance problem
2002 Ford Ranger 6 cyl Two Wheel Drive Automatic 13,600 miles
This problem started ubruptly. I started the truck and it ran very rough, like cylinders were missing. It was worse with acceleration, and it was running so rough the truck was shaking. Then the check engine light came on. Repair shop said the spark plug wires shorted out, the #3 cyclinder was missfiring, and they also detected a fuel pressure regulator leak. They replaced the wires, new spark plugs and the fuel pressure regulator ($$$). Drove the truck home and it seemed fine. The next time I started the truck it was back to square one, with the misfiring, rough running and the check engine light coming on. Needless to say, I'm taking it back in, but it seems they don't have a clue. Any ideas?
Sunday, October 19th, 2008 AT 5:00 PM