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turbo problem 850

posted by  850-j on  Wed Nov 30 14:17 CST 2011
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last visit: Thu Jun 21 10:38 CST 2012
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i have a 94 volvo 850 that the turbo was not working, (wouldnt kick in). i replace the turbo with another one that i know was working and it still would not kick in. i took it off again and notice the oil line was dry. can someone tell me what makes the oil pump through this line,would this stop the turbo from working, and what else should i look at with this turbo problem








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    turbo problem 850

    posted by  KlausC on  Wed Nov 30 21:22 CST 2011
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    last visit: Fri Oct 24 10:15 CST 2014
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    There is a boost controlle solenoid on the air filter box. The vacuum lines probably need to be replaced by now. The BCS is also old and could be very dirty and clogged, ready for replacement.

    The turbo oil line has no oil? It gets pumped from the block. Is the engine oil level too low? You need to determine the oil pressure and hope the oil pump is working.

    Klaus
    --
    Did you do your Random Act of Kindness today?








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      turbo problem 850

      posted by  Erwin on  Thu Dec 22 11:32 CST 2011
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      last visit: Thu Oct 23 10:39 CST 2014
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      Regarding "won't kick in", do you mean you never see boost on the gauge nor feel the additional thrust? Check the intake hoses near the throttle body, especially the smaller S shaped hose from the idle air control motor to the larger hose just at the throttle body opening. Mine was oil-rotted and split. There was a 2" split that was venting boost right out into the engine compartment.

      Cut and paste url:

      http://img.photobucket.com/albums/0803/eroman/HPIM0739.jpg

      Erwin







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