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1,6,7,8 - Series and Mini Cooper General Chat related to models that do not fit into particular categories above. Please try to put your discussion in more appropriate sections. This section does cover the 1 Series, MINI Cooper and 8-Series vehicles: BMW 830i, BMW 840Ci, BMW 850i, BMW 850Ci, BMW 850CSi, M8, Alpina B12, BMW CS Concept and others.

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Old 06-07-2009, 11:53 AM   #1 (permalink)
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Car grounded , fuel problems, help needed...

Car - 1991 735. I was driving down the road when car just stalled on me. I think I killed fuel pump (have been driving on almost empty for a while). Anyways, I diagnosied dead fuel pump (no sound when ignition key is turned, that familiar "Pzzzzzt" for 2-3 seconds).
Changed fuel pump. It worls. i know, because when i removed fuel like from Pressure Regulator, crank the car, i see gas spewing out of FPR.
Car doesnt start till. I have my doubts - when you connect fuel pump, there are two wires, "+" and "-", and to be honest, i am not sure, if I re-connected them properly. Could that be a problem? Any advice is appreciateds, thanks a lot
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Old 06-08-2009, 05:53 PM   #2 (permalink)
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Pump good, could be timing? Took valve cover off, nothing unusual


what else to look for?
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Old 06-09-2009, 08:47 AM   #3 (permalink)
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Did you disconnect the battery when you replaced the pump?
I know this is going to sound strange but maybe if you disconnect the battery for a few minutes it'll solve the problem. Just a thought!

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Old 06-09-2009, 01:46 PM   #4 (permalink)
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Do you have a spark at the plugs ???
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Old 06-10-2009, 11:34 PM   #5 (permalink)
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Battery was dissconected, when I was replacing pump. And, when i cranc the engine, fuel is spewing out of fel pressure regulator, so i know pump is not a problem...
As far as spark plugs, they are just replaced, but to be honest, I havent checked the spark.
Before it happened, car wasn`t misfiring, or else, so i didnt give it a second thought.... I was advised that timing belt could`ve jumped teeth, I took off calve cover looking for any signs of valve damage, or pieces of chain - nothing, everything looks like it should.
I will buy compression tool at Kragens, and will get compression measuring tool in all 6 cylinders, then I will get better picture, thanks a lot for ideas!!

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Old 06-11-2009, 03:13 AM   #6 (permalink)
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Why I asked about a spark was.... it may be the Crankshaft sensor.
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