1995 Mitsubishi Montero poor idle

1995 MITSUBISHI MONTERO
186,000 MILES • 6 CYL • 4WD • MANUAL
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CHINITO
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  • 1 POST
1995 montero suddenly maintains hi idle in cold weather, ie, will not resume to low rpm after rapidly engaging accelerator pedal. It remains at 2000-2200 rpm until warm.
At the moment, 75-85 F ambient temperature, it will not idle at specs when engaging the air conditioner. Tach shows 500-600 rpm. Prior to warm-up, (3-4 min idle time), the engine continously lopes and eventualy quits.

Any suggestions?

Thanks for you professional efforts
Aug 27, 2009 at 2:54 PM
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RASMATAZ
  • ✓ASE Certified Mechanic
  • 75,992 POSTS
  • ASE Certified Mechanic
Check the idle air control motor, throttle position sensor and EGR valve.
Aug 27, 2009 at 9:16 PM
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