Long Crank Startup/ Rough Idle

sbefar01 · 05-20-2009, 02:18 PM

Every now and then, after pressing the ignition, i get a very Long crank before startup which concerns me. I addition, when I'm sitting at a traffic light etc., I have a slightly rough idle while the rps fluctuate slightly up/down. Is this a normal occurance or possibly a HPFP issue? Any other possibilities? Thanks!

MadMan77 · 05-20-2009, 02:22 PM

Definitely sounds like your HPFP going. Take it in and have the dealer look at it.

sbefar01 · 05-20-2009, 02:27 PM

son of a . . . . . my production date was after the HPFP issues, but sounds like your right

Misterted · 05-22-2009, 02:00 PM

If you have a 135i then it can be the fuel pump. They are known/expected to fail and as a result BMW has just issued a warranty extension for all BMW's equipped with the 300hp twin-Turbo six engine. Long crank is a symptom of this.
But, if you drive a 128i then disregard the above.

05-20-2009, 02:18 PM	#1
sbefar01 First Lieutenant 16 Rep 331 Posts Drives: 1er Join Date: Nov 2007 Location: NJ iTrader: (0)	Long Crank Startup/ Rough Idle Every now and then, after pressing the ignition, i get a very Long crank before startup which concerns me. I addition, when I'm sitting at a traffic light etc., I have a slightly rough idle while the rps fluctuate slightly up/down. Is this a normal occurance or possibly a HPFP issue? Any other possibilities? Thanks!
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05-20-2009, 02:22 PM	#2
MadMan77 ↓↓↓ Ex-Con ↓↓↓ 34 Rep 1,874 Posts Drives: Jet Black '08 135i Join Date: Apr 2008 Location: Yigo iTrader: (1)	Definitely sounds like your HPFP going. Take it in and have the dealer look at it. __________________
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05-20-2009, 02:27 PM	#3
sbefar01 First Lieutenant 16 Rep 331 Posts Drives: 1er Join Date: Nov 2007 Location: NJ iTrader: (0)	son of a . . . . . my production date was after the HPFP issues, but sounds like your right
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05-22-2009, 02:00 PM	#4
Misterted Maniac with a BMW 13 Rep 185 Posts Drives: 2020 330 X-Drive Join Date: Jul 2008 Location: Jersey Shore iTrader: (0)	If you have a 135i then it can be the fuel pump. They are known/expected to fail and as a result BMW has just issued a warranty extension for all BMW's equipped with the 300hp twin-Turbo six engine. Long crank is a symptom of this. But, if you drive a 128i then disregard the above.
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