2CarPros - Car Questions & Answers

2004 Ford Freestar Repair Question


Topics covered: Sensor, Engine, Spark.
Mileage: No information provided.

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!
Avatar Asked by bthompson3

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.

Tiny Answered by rasmataz
68 questions asked
Replied on April 7, 2010

thanks for the reply, I will start with plugs and wires.
then pick away at the sensors.

Tiny Response from bthompson3
1 question asked