Engine Performance problem
2003 Ford Windstar 6 cyl Front Wheel Drive Automatic 77000 miles
Number 2 cylinder mis-fires per Autozone engine analyzer. I repalced the plugs ( Number 2 plug was black ), and plug wires. No change. When you attempt to accellerate, mis-fire is more noticeable, and enginer knocks and hesitates. Let off the gas pedal, and it get's smoother. Also put 4 cans of STP gas treatment in the gas tank to eliminate any potentil water in the gas. Only other options I can think of our 1. Bad coil pack, and 2. Bad fuel injector. Your opinion?
Monday, December 7th, 2009 AT 5:51 PM