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Old 05-07-2017, 03:00 AM   #1
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328i wont start

Hello ive been working on my 2000 bmw 328i bought a few weeks ago car was running fine and starting. It does crank over, when i start it will hit about 500 rpm but wont start. I was planning to replace my fuel filter, and was wondering when i disconnect the fuel filter and turn on the power would fuel flow out if it is good?

Last edited by Lacd209; 05-07-2017 at 03:00 AM.
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Old 05-07-2017, 08:23 AM   #2
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The first step in diagnosing any issue in a modern car is to scan the computers for codes. Always. Throwing parts at a problem wastes money, doesn't fix the problem and angers the BMW goddesses.

Is the fuel pump original? Test the fuel pressure at the fuel rail test valve. It needs to be at least 50psi at all engine speeds. Item #2 in the link is the cap on the test valve.

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Old 05-07-2017, 09:38 AM   #3
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There's a quick disconnect on the fuel rail under the hood that will let you see if fuel is getting to the engine when the fuel pump is energized. You could also try a little quick start in the intake to see if it's a fuel starvation issue. I think there is a thread on here for systematically going through NO Start issues. Maybe it's on page 1 of the general forum as a sticky at the top.

Edit: yep. Second thread down


Last edited by BMW-North; 05-07-2017 at 09:39 AM.
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Old 05-07-2017, 10:30 AM   #4
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Check the battery voltage and report back.
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cranks but no start, fuel filter, fuel pump, fuel pump relay, wont start

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