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ENGINE REVS ON COLD START-UP 850 1995

posted by  cramer12 on  Tue Jan 27 16:06 CST 2004
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I have a 1995 Volvo 850T which I just love. It has 145,000 miles but still runs strong. However, on cold starts, the engine wants to rev to 2300 rpm and must be manually kicked down (by lifting "up" on the accelerator pedal). I have taken it to the Volvo dealer and they haven't been able to identify the problem. They have checked the throttle linkage, replaced the oxygen sensor, etc. Once it's warmed up, the problem does not repeat on restarts. My main concern is no oil to the turbo during the high revs on the cold start. Any thoughts???








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    ENGINE REVS ON COLD START-UP 850 1995

    posted by  SUNSCIRCUS on  Wed Jan 28 01:40 CST 2004
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    last visit: Fri Jan 29 03:20 CST 2010
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    My '95 N/A did this too and I think 123456 touched something about the coolant
    temp sensor. I dont know why, but my engine stop to revs on cold start
    immediatly after I replaced the thermostat.... I understand that there's
    no direct relation between a thermostat change and a coolant temp sensor
    but it fixed the problem !








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    ENGINE REVS ON COLD START-UP 850 1995

    posted by  someone claiming to be 123456 on  Tue Jan 27 20:14 CST 2004 [RELATED]

    mine did this 2 and the dealer also couldn't fix it!!

    wot i used to do was crank it a few time NOT letting it start and then start it normally, this stopped the over-revving on cold starts.

    must be a bad sensor i think probably the coolant temp sensor under the thermostat telling the car its colder than it is and so it revs up to start first time, maybe??







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