2004 Ford Freestar Repair Question
Asked on April 6, 2010
2004 Ford Freestar ENGINE CHUGGING/ HESITATING
Engine Performance problem
2004 Ford Freestar 6 cyl Two Wheel Drive Automatic 77545 miles
Engine chugs/hesitates while driving. Stomp on gas,chugs, under load. In park smooth idle, accelerates just fine. No engine codes, and fresh fuel and air filter. Going to change plugs and wires this weekend. Has anyone else experienced this problem? and what was done.?
thanks for the response!
2004 Ford Freestar 6 cyl Two Wheel Drive Automatic 77545 miles
Engine chugs/hesitates while driving. Stomp on gas,chugs, under load. In park smooth idle, accelerates just fine. No engine codes, and fresh fuel and air filter. Going to change plugs and wires this weekend. Has anyone else experienced this problem? and what was done.?
thanks for the response!
Answer
Replied on April 6, 2010
Lack of acceleration,chugging,hesitating,bogging etc. could be caused by one of the following below.
Inspect and test all the following listed below and get back with some results
Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.
Note:If it doesn't apply disregard.
Replied on April 7, 2010
thanks for the reply, I will start with plugs and wires.
then pick away at the sensors.