• Tiny
  • Kevin
  • 1989 Mitsubishi Van
  • 4 CYL
  • 2WD
  • 240,000 miles

Runs well on straight road but labors on incline, what could the problem be?

Sunday, March 6th, 2011 AT 7:00 PM

1 Answer

  • Tiny
  • rasmataz
  • Member

Do you have a check engine light on? When was the last tune-up?

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.

Was this
Sunday, March 13th, 2011 AT 3:06 AM

Please login or register to post a reply.

Similar Questions