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[UC12]

2001 S60, non-turbo, automatic trans. 95,000 miles.

So, the Volvo dealer has had my car now for over 12 days and they still have not been able to fix my high idle when cold issue.

On a cold morning, when I start the engine, it fires right up and idles around 1500 or so rpms but if you tap the accelerator peddle, the idle quickly climbs to over 4000 RPMs and hangs there for 20 - 30 seconds. Dangerous if you happen to throw the car into gear. Gives new meaning to unintended acceleration.

So far the dealer has cleaned or replaced:

1. The throttle body was cleaned
2. The ETM was replaced
3. The temp sensor was replaced
4. The oil trap was replaced (whistling out of the dip stick. This was fixed)
5. The MAF was replaced (will be removed and my old one reinstalled once they determine the real cause)
6. The ECM was replaced (will be removed and my old one reinstalled once they determine the real cause)
7. Installed genuine Volvo spark plugs to replace the NGK's

The good news is I have only been charged for #'s 1, 4 and 7. I get to keep the ETM and temp sensor.

The dealer is as frustrated as I am but appears to be committed to fixing the car and maybe collect some $$'s from me to offset the time they aren't getting paid on. The guy working on the car has over 20 years of Volvo experience. They have been in on going contact with Volvo but 12 days.....no fix. To make matters worse, no error codes.

So, please weigh in if you really know what the problem is.....

Thanks.

[jschaefer7406]

Hello,

Did they check the throttle pedal yet? Being the potentiometer in the pedal plays a vital part in the ETS system, probably would be a good possibility. Doesn't explain why it's only when cold, but wouldn't hurt to check into it ...

Hope this helps,

Joe