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Doug
Doug, ASE Certified Technician
Category: Mitsubishi
Satisfied Customers: 8538
Experience:  Mitsubishi employed and Factory trained ASE certified technician
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Mu 2005 Mitsubishi Outlander, with 116 k miles idles at 500

Customer Question

Hey Doug, mu 2005 Mitsubishi Outlander, with 116 k miles idles at 500 rpm without ac, but trembles at that rpms with it on
Submitted: 9 months ago.
Category: Mitsubishi
Expert:  Doug replied 9 months ago.

Hi,

When was the last time the throttle body was serviced on this vehicle? This model/year has an electronic throttle and the vast majority of low idle/rough idle conditions are correctable with a throttle cleaning.

Customer: replied 9 months ago.
Throttle body has not been serviced. I'll have it.
Expert:  Doug replied 9 months ago.

Lets start there getting that throttle body fully cleaned inside (specifically around the sealing areas when the plate is closed). This will correct 90% of the idle stability/roughness issues you see on this vehicle. If there is still an issue afterward then we would want to start talking about checking compression and fuel pressure etc... it is unlikely to go beyond the cleaning though in most cases.

Expert:  Doug replied 8 months ago.

Hi,
I noticed it had been 24 hours+ without hearing back and wanted to see if there was any resolution, if you needed more help or if we could conclude this session.

Thanks!