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850 not starting

posted by  royvolvo on  Wed Dec 14 07:30 CST 2005
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last visit: Sun Apr 6 15:23 CST 2008
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Spark at the plugs
change spark plugs and distributor cap and rotor also the battery
fuel is at the jet (tested the pressure release by the jets) the starter is working
at a lost what else am I missing.







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    frozen gas line? Blocked Intercooler? Running rich?

    posted by  Hugh740T on  Tue Jan 3 08:23 CST 2006
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    If the plugs are wet with gas after cranking, then perhaps it is not getting
    enough air.

    If the car has a turbo then condensation-oil may be blocking the intercooler. Try starting it with the hose from the intercooler disconnected. You may have to block the hosefor a second or two, while someone else turns the key,to enrich the mixture enough to start up. It will only run at an idle with the hose disconnected but if it does start then you know what the problem is. This was the clue to getting my son's 88 760 turbo running. We removed the intercooler, warmed it up (he is lucky to have heat in his garage), flushed it with rubbing alcohol and re-installed. The car started up fine after that.

    Good luck Hugh







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