2003 Lincoln Navigator Repair Question
Asked on October 16, 2011
How can I fix non acceleration, shuts off while driving, poor gas mileage to this vehicle?
When I drive the vehicle it doesn't accelerate and it shuts off while I'm driving and it has poor gas mileage.
Answer
Replied on October 16, 2011
Do you have a check engine light?
http://www.2carpros.com/articles/engine-hesitates
Could be caused by one of the following below
Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
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 it and keep testing.