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850 Turbo gauge 850 1994

posted by  reman on  Fri Jan 21 13:05 CST 2005
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last visit: Mon Sep 29 15:29 CST 2014
[RELATED]

The Turbo gauge on my 1994 850 turbo does not seem to be working. The red indicator is stuck at the "12 o'clock" position and does not move, the turbo seems to be operating properly. The fuel and temperature gauges work fine. Any thoughts as to what the problem is?








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    850 Turbo gauge 850 1994

    posted by  KlausC on  Sat Jan 22 05:26 CST 2005
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    last visit: Fri Oct 24 10:15 CST 2014
    [RELATED]

    There is a picture of the vacuum line close to the hood release lever on Bay13? When pulling off the instrument cluster the connection by the lever must be unplugged. You have a leak somewhere and you need to trace it down the line.

    Klaus
    --
    98 V70Rawd(101Kmi), 95 854T(85K mi), 75 164E(173K mi)








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    850 Turbo gauge 850 1994

    posted by  someone claiming to be bob on  Sat Jan 22 04:06 CST 2005 [RELATED]

    The turbo gauge is mechanical. It is conected to the engine via a vacuum hose that starts at the vacuum "tree" on the intake, runs forward along the top of the radiator fan shroud, curves around the battery and runs along the frame rail to the firewall, passing through to the gauge through a grommet under the brake booster. Common areas of leakage are near the front where it transitions from a rubber hose to a plastic tube, and around the battery area. If you have a hand held vacuum pump you can test with that. It is also possible that the hose broke or came loose on the dash side of the firewallbut you would hear a hissing noise while driving.







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