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-   -   Challenging Starting Problem! (http://www.bimmerfest.com/forums/showthread.php?t=650002)

Shnoogie 10-05-2012 12:55 AM

Challenging Starting Problem!
 
So i have a problem with my 318is starting, it all began about 3 weeks ago when i went to leave work, as i turned the key the engine was cracking but no start, i recharged the battery and repeated about 4-5 times. No luck.
The next day i recharged the battery ( cranked it alot of times), disconnected the fuel pump leads and measured the voltage (it was about 0.9 ). To my surprise the car started without the fuel pump connected, running on whatever was left in the lines. Great!


About a week later, again, i went to start the car. Cranking but no start. Disconnected the fuel pump leads again, measured it but no start so i connected it all back up. Left it for awhile and charged up the battery ( cranked it alot of times). Then on the final crank pumped the Gas as i cranked it, and it eventually started. Awesome!

A few days later i went to the doc's for about 15 minutes, i came out and it would not start again. Crank, but no start. This time we tried jumper leads, crank but no start.

Now this is where it gets interesting.

After many attempts over 2 days (had to leave it there over night, couldnt find tow hook) to start the car by jumper leads. I had to tow it home (5 min drive). As we went down a steep hill, i put the car in 2nd gear to engine break. As smoothly as i slowly released the clutch, the engine smoothly started running. Now at this point im back to square one, i can start it drive around and start it again.

The problem is, its inevitable that it will happen again.

I've been a long time lurker of these forums and thought id post this here to see if anyone has any ideas? At this point i have absolutely no clue.

Thanks in advance.:cry:

drivinfaster 10-05-2012 06:14 AM

well, i doubt that it's related to the fuel pump.

you could be missing spark, which would be my guess.

i would check the crank sensor first.



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