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No Blower Air? 700 1991

posted by  someone claiming to be Homer on  Tue Jan 25 04:32 CST 2005 [RELATED]

My sons 91 740 has no heat. The blower can be heard running but it creats virtually no wind. I think it is a problem whether set at Defrost, floor or dash outputs. Thanks for the help. H








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    THANKS--WILLTRY? NT 700 1991

    posted by  someone claiming to be Homer on  Fri Jan 28 03:42 CST 2005 [RELATED]

    NT








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    No Blower Air? 700 1991

    posted by  Aye Roll on  Tue Jan 25 09:09 CST 2005
    Author: [PROFILE] [EVERY POST] [THREADS] [BEST POSTS] RSS Feed     [IGNORE ALL POSTS]
    last visit: Tue Oct 14 21:08 CST 2014
    [RELATED]

    You've lost vacuum from the engine. Look for a small rubber hose that's split, or an inline check valve that's failed.
    --
    Rob Bareiss, New London CT ::: Roterande Fläkt Och Drivremmar!








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      No Blower Air? 700 1991

      posted by  someone claiming to be spbaker90 on  Wed Jan 26 17:03 CST 2005 [RELATED]

      Two weeks ago, I bought an 87 765T. I wasn't getting any heat but the blower was working. I found and replaced 5 vacuum hoses that had split but this did not fix the problem. I took the car to a Volvo mechanic who, after some time spent troubleshooting, found the problem. He told me that under the front of the car is a vacuum canister that has two ports. One port has a vacuum hose connected to it. The other port is not used and has a rubber plug. The plug had deteriorated, causing a vacuum leak. Once the plug was replaced, I had heat.







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