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Loss of power, black smoke 900 1991

posted by  DOUG740GLE on  Wed Aug 4 09:19 CST 2004
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last visit: Wed Jan 25 15:55 CST 2012
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I purchased a 91 945 Turbo wagon this weekend and on the trip home (about 300 miles)after about 200 miles of trouble-free cruising at 70-75 mph the car started to lose power and I noticed a lot of black smoke out the exhaust. I pulled over to check under the hood, left the engine idling, but could find nothing obvious that might be the cause. While sitting there, the car idled fine. I got back in and drove the rest of the way home with no more problems. Looking through the service records that came with the car I found this has been a recurring, intermittent problem for the last few years, but by the time the previous owner got the car to the shop it was running fine. Any ideas on where to start looking for a cause?








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Loss of power, black smoke 900 1991

posted by  someone claiming to be Ringlee on  Wed Aug 4 10:20 CST 2004 [RELATED]

See the 700/900 FAQ for information on rich running. I suspect that you have a hole in an intake hose that is opening up under boost.







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