Shutter when idle

Tiny
CLONGLEY
  • MEMBER
  • 2003 FORD F-150
  • 6 CYL
  • 2WD
  • 100,000 MILES
Ford f150 truck shutters when outside temp is high
Sunday, May 1st, 2011 AT 3:58 PM

1 Reply

Tiny
RASMATAZ
  • MECHANIC
  • 75,992 POSTS
Do you have a check engine light and when was last major tune-up?

Its hard to say where its coming from could be from the transmission 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.
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.
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Sunday, May 1st, 2011 AT 9:29 PM

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