3-Series (E21, E30)Chat relating to the BMW 3-Series from 1975-1983 and 1984-1991 line. Specific models: BMW 315, BMW 316, BMW 318, BMW 318i, BMW 320/4, BMW 320i, BMW 320/6, BMW 323i, BMW 320i. E30 Family models include: BMW 325e, BMW 325i, BMW 325is, BMW 325ix.
just got the car 150 miles ago car runs great shut it off and just cranks have spark disconected battery and then it started will run fine for days and then there we go again switched relays around still the same pump in tank?
do a pressure stest on the fuel rail well actually instead of hooking up a gauge turn your key on but engine off there will be a valve on your fuel rail the valve will be very similiar to the valves on your tires just take like a flat head screw driver and poke it in there be cautious of the fuel if it sprays out then the pump is good if it trikles out its the filter if nothing at all then the pump
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