Engine Performance problem
1999 Ford Escort 4 cyl Front Wheel Drive Automatic 218000 miles
About a year ago, my '99 Escort developed an odd problem. Very infrequently, perhaps once or twice a month, when you first start the car, it will run rough, characteristic of a steady miss in one cylinder. After a few seconds, I rev it up a bit, and the engine smooths out, and runs fine after that, with satisfactory driving performance. The following components have been replaced recently: plugs, fuel injectors, ignition wires, coil pack, both oxygen sensors, fuel filter, air filter, MAF sensor cleaned. Compressions read from 140 to 150. The intermittent problem still occurs, and as mentioned, the problem appears as one cylinder momentarily being "dead". This was confirmed by the code reader showing a misfire on one cylinder when the check engine light would come on. Shall I replacee the PCM unit (computer) at this point, or is there another component I might try?
have the same problem?
Friday, August 28th, 2009 AT 7:21 PM