Join Date: Jul 2009
Location: Palm Coast, Florida
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OK, so I remove the fuel filter and had to blow really, really hard (saw stars before my eyes and cheeks hurt) to get fuel to come out that was trapped... It must have been pretty clogged and saturated. The prior owner said he had changed it recently, but - bracket bolt was rusted so bad it broke, and it sure looked like the original to me(german writing): went out and got a filter and blew through it (like night and day)...
I jumped fuel relay with no filter and had No flow with pump assembly I had installed (used out of a running car, supposedly) I re-installed original pump and fuel flowed good. So I put filter in, and it fired right up!
I could not get it to flow with filter out by cranking and having key ON without jumping relay until I fired it up "jumped" first... I wonder why?
However, I was able to rev it and it idled good, but it died before I could close everything up to drive it around the block. I got it started with a shot of ether again and it ran then faded out. I took line off at rail, gas but not pumping. I took line off at pump in trunk, and nothing.... just some fuel in line
I let it cool down while there was a thunderstorm. This time I heard pump prime with relay installed (I think it was) and again it fired up and I was able to hold it at 2200rpms for about 2or3 minutes before it started starving for fuel again and died. When I removed hose at pump in trunk, it had some pressure built up, but I jumped relay, pulled assembly out and plugged it in, and nothing.
I "Haven't" check relay pins for constant power yet due to rain. I still am wondering if I should re-install new crank sensor or take it back and get my $80, and put it towards new pump.
My guess is it needs a "NEW" pump. With the vacum line damaged at regulator and clogged filter the original must have burned up, and will shut down when it gets hot/warm...
I mean, it ran good but... it did seem like the starter didn't disengage the last time I got it started(?)
I guess the moral of the story is change your fuel filter regularly, and don't let girls drive your BMW... If I had been driving it the days before it finally died I would have noticed "something" going on, I am sure... Also, the girl lost the original fuel cap and there is some goofy cap she bought at autozone that looks like it belongs on my 68 corvette - I am sure she didn't say anything about any problems so she wouldn't lose her free-ride
Would a bad filter, vacum off (split) at regulator, the wrong gas cap and cheap gas cause fuel pump failure???????
and why did my starter not disengage??low voltage???(I had disconnected cables at that point, but I thought I heard something the first time like the starter not disengaging)
AND: how the hell do you get the pump assembly to snap back in place on both sides?????? I cam having big problems with that, and the gas is eating my flesh just trying.
There are some "new" pumps on ebay for under $80, does anyone know where to get one at that price from a parts store or parts wholsaler that I could trust to honor some kind of warranty????