2001 Eclipse GS RPM Dips and Almost Stalls

2001 ALL OTHER MAKES ALL OTHER MODELS
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AEVERINGHAM
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  • 1 POST
I have a 2001 Eclipse GS with 74,000 miles. Back in Dec '05 i had the timing belt and balance shaft belt replaced, and just yesterday I had the accessory belt replaced. Yesterday on my way home while sitting at a set of lights, my RPM's kept dipping below 500 RPM's and almost stalling!
Any ideas what it could be?
Jan 27, 2006 at 3:33 AM
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2CARPRO JACK
  • ✓Experienced Mechanic
  • 11,533 POSTS
something might have gotten bumped while the drive belt was being installed, take it back and have them check
Feb 9, 2006 at 9:48 AM
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CMPOWERS
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  • 1 POST
I am having the exact same problem! Same car, same mileage. My check engine light came on and I had it scanned. Said it was the O2 sensor, so I replaced it. Directly after replacing, I took it for a drive and it is STILL idling at or tiny bit below 500. Sometimes it dips way down as if it is going to die. If you find out what it is before I do, please let me know! I will do the same in return.
May 17, 2006 at 1:28 PM
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Suggested Repair

Return the vehicle to the shop that installed the accessory/drive belt and have them inspect for anything that may have been bumped or disturbed during installation.

Conversation Summary

The owner of a 2001 Eclipse GS reported idle speed dropping below 500 RPM and nearly stalling at a traffic light shortly after the accessory belt was replaced; the timing and balance shaft belts had been replaced earlier. The expert suggested something may have been disturbed during drive belt installation and advised taking the car back for inspection. Another owner described the same low-idle symptoms; replacing an O2 sensor indicated by a scan did not resolve the problem.

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