car problems

2000 FORD CONTOUR
154,622 MILES • 4 CYL • 2WD • AUTOMATIC
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RSTICK01
  • MEMBER
  • 1 POST
2000contour engine bogs down after 20 miles stays in high gear all codes lead to oxegen sensor changed both no change new air filter fuel filter pvc plugs and wires still nochange
Mar 13, 2011 at 7:28 PM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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RASMATAZ
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 75,992 POSTS
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.
Mar 13, 2011 at 7:31 PM
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