Intermittent Starting

[BFEINZIMER]

From my other thread, no responces:

So sometimes, randomly mind you, the car will not start, it will just crank and do nothing, or if I hold it long enough, it MIGHT BARLEY come to life, or seem like it and die. So I usually just trun it off for a second or two, retry and it fires to life. Now, recently, sometimes it will start without me even hearing it crank. I turn and it comes right to life like everything is on steorids. I can't figure out why its doing either of these things. Anyone?

[31Hertz]

Crank Position Sensor?

[we_call_him_doher]

I think I have the exact same problem, with both the hard starting and "very fast starting". Hope someone can shine a light on what the problem is.

[BFEINZIMER]

From other thread:

When was the last time your fuel filter was changed?
-ashley

My autoshop teacher suggestuded that also...so I guess I'll replace it and see what happens...

[we_call_him_doher]

That might fix yours but just fyi, I changed my filter, still have the same issues.

[BFEINZIMER]

Really, **** well changing the filter can't hurt right? ANy other ideas?

[barry 90 525i]

i also have this problem, most of the time fires right up, but about every 10th time it wont start, have to keep trying and finally starts

[we_call_him_doher]

Well it definitely wouldn't hurt to change the filter, it just didn't fix mine. The weird starting doesnt happen very often, just every once and awhile.

[mamilapon]

Get an inline fuel check valve part # 16 14 9 068988 from BMA and look up the fitting procedure on the troubleshooting section of this site un M30 3.5 hot start pb. I just did mine and now it starts first time.

[BFEINZIMER]

I don't think its hot start problem its think its allthe time but I'll look into this. Thanks.