Mechanics

VEHICLE WON'T GO OVER 40MPH

2001 Hyundai Santa Fe • 4 cylinder 4WD Automatic •

Vehicle ran fine the day before. Today the vehicle will not go over 40mph
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Fester49
February 3, 2011.




Do you have a check engine light?

Could be a transmission problem or 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.
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 it and keep testing.

Rasmataz
Feb 3, 2011.


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