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rough idle at start up 700 1985

posted by  someone claiming to be lindon on  Sun Oct 3 10:52 CST 2004 [RELATED]

hi all
i new to volvos so i am learning all the time
the problem i am having is when i start the car it idles rough and rpm is about 600.
When it warms up everthing is ok so i did some reading and found out there is iac valve. I pulled it out and checked it and cleaned it put it back in and soon as i go to start the car it shuts and will not open
Is there a senor or somthing that sends a signal to the iac to say its cold and open up.
i have found a senor in the block under number 3 approx which i dont know what it is for
hope somebody can help me or lead me in the right direction
thanks Lindon







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    rough idle at start up 700 1985

    posted by  ndesouza on  Sun Oct 3 13:22 CST 2004
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Sun Mar 18 15:14 CST 2012
    [RELATED]

    The 1985 cars have a wiring-harness problem, which results in the crumbling of the wire-insulation. Have you replaced your wiring-harness ? If not check each wire and make sure they are not shorting each other. Check under the intake-manifold area (where the IAC is located) as that's where the crumbling starts. Also check the wiring near the grey-connectors near the A/C dryer. Basically - check all the wiring in the engine first.

    Noel








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    rough idle at start up 700 1985

    posted by  someone claiming to be lindon on  Sun Oct 3 10:56 CST 2004 [RELATED]

    forgot got to tell ya its 760 turbo 1985 model auto
    thanks again






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