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Every time I start my ‘98 528, it chugs horribly shd with very low idle. Many tines it stalls just sitting there other times stalls und Load
In BMW E39
Every time I start my ‘98 528, it chugs horribly shd with very low idle. Many tines it stalls just sitting there other times stalls und Load
In BMW E39
Hi, I have had several BMWs from e38s to e90s. I have my lovely 2004 530i (M54), getting fuel, spark, no start (after new fuel pump)....
In E60
cnelson3103
Mar 26, 2019
So after thinking my battery had been somewhat low lately (the odd chime here and there, auto dip-mirrors working intermittently, etc.) I went ahead and bought a new 850cca battery and put it in, still nothing. So I had it towed home and commenced to pulling the back seat and checking the fuel pump. It would not come on, even when cranking, so first off I replaced the fuel pump relay and checked the fuse before buying and installing a new fuel pump. After the install, the new pump comes on and runs fine, but still no start, just crank crank crank...I then pulled the airbox and sprayed a little carb cleaner in the plenum, and every time I do, she fires right up, but only until the sp;ray is used, maybe 2-3 seconds. I checked for spark after pulling a coil pack with the plug inserted, and had spark. I then leaned moreso toward a camshaft position sensor, thinking I would have no spark at all if the crankshaft position sensor was the culprit, so I replaced it with a new one, Still no start. My next thoughts are possibly low fuel pressure since I didnt change the filter, or a bad regulator (since I got a buddy to crank the engine after pulling the cap off the filter assembly and I was able to easily hold the pressure and it was spraying from the bottom of the filter assembly near the regulator) so I am planning on getting a fuel pressure gauge and checking for >47psi. The only other thought was possibly the crankshaft position sensor, even though I have some spark. I am stumped on this one, has anyone else ran into something like this? ANy help would be greeaaatttllllyyyyy appreciated, thanks.
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cnelson3103

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