Long crank on startup?

malter2.0 · 04-21-2008, 05:00 AM

sounds like you are making it crank longer. i believe you can "let it go" earlier and it would still start.

maybe?

!Xoible · 04-21-2008, 08:51 AM

i have long cranks when it's cold. we'll see where it goes

valeram · 04-21-2008, 12:47 PM

Mine won't start. Oh sorry, my car is not built yet.

Sounds normal to me. I just hope that the new M3 is not using the same problematic 335 fuel pump.

!Xoible · 04-21-2008, 01:29 PM

i'd hope not!! in any case it doesnt bother me. it can take 60 seconds starting up if she wants, i know it'll save me over 6 minutes on my commute anyway

@ Fithhh i couldnt play the vid u posted, i have to go home to check it. mine's no longer than 1-2 seconds, just not immediate

nusevad · 04-21-2008, 01:51 PM

Quote:

Originally Posted by malter2.0

sounds like you are making it crank longer. i believe you can "let it go" earlier and it would still start.

maybe?

I just push the button and let go, not really holding it down. I guess maybe because the car is cold...

!Xoible · 04-21-2008, 03:48 PM

as long as the part is available it's not a problem....

nusevad · 04-21-2008, 05:27 PM

I started the car up today after a drive when the engine warmed up and the crank was shorter. Im thinking the crank is long on initial startup on cold engines.

SS32 · 04-21-2008, 06:51 PM

It's definitely when the engine is cold. I noticed it more so this morning than normal b/c of this thread. But when I left to head home, and the car was still somewhat warm, it cranked right up.

Shade · 04-21-2008, 08:10 PM

Got a respond from kiddo's car. He was told by the Service guy that he need to change his Fuel pump...

nusevad · 04-21-2008, 08:55 PM

Quote:

Originally Posted by ShadeM3

Got a respond from kiddo's car. He was told by the Service guy that he need to change his Fuel pump...

uh-oh...how long were his cranks?

oneginee · 04-21-2008, 09:17 PM

The fuel system must maintain a specified "rest" pressure with the engine shut off. You may have a leaking fuel pump check valve, or leaky pressure regulator that drain rest pressure and cause long cranking times.

OR

dirt, sediment or other debris in the tank can cause the pump’s check valve to stick open (which can cause a hard starting condition due to loss of pressure when the engine is shut off)

If you start having more symptoms like rough idle, hesitation, stumbling, loss of high-speed power it is clearly due to loss of fuel pressure. It may not be the fuel pump can also be caused by a restriction in the fuel line or a defective fuel pressure regulator.

That said I remember when I testdrove the M3 I did notice the crank time was a bit longer than my SL55 AMG. It may be normal.

Pancho · 04-21-2008, 09:24 PM

It is a long startup. I now have > 5,000 Kms. and honestly never felt such a long time. In my M3 it is always short and consistent. I would take it in just to be sure.

fmquadri · 04-22-2008, 01:56 PM

After watching the 1st video I realized that my cranks are longer consistently.

Here's an example from a few moments ago. 62 degrees in the garage and about 16 hours since being driven last.

!Xoible · 04-22-2008, 04:23 PM

even when it's warm? it's not instant but i dont think mine's abnormal... when it's cold it's normal to have a longer crank. u guys are worrying too much. if it gets to like 3-5 seconds i'd worry about it. again i havent watched the vid's

SS32 · 04-22-2008, 04:29 PM

Yeah, I don't think it's long enough to worry about. Have you never had a car that took a second to crank?

!Xoible · 04-22-2008, 04:34 PM

everyone is paranoid coz of 335 issue. but hey, as long as the part is available who cares, just enjoy it and dont let it bother you.....

skierman64 · 04-22-2008, 10:33 PM

My car cranks very similiar to both post #1 and post #37. Nothing abnormal for this car at all.

We aren't having fuel pump problems on car with less than a week on them.

Remember this car has a whole new type of measuring pressure altitude (aviation term) and temperature than other cars in the BMW lineup and most other fuel injected cars world wide. Perhaps it take a few tenths of a second longer to find the right mixture on start up.

M3Kevin · 04-22-2008, 10:47 PM

Doesn't seem particularly long to me?

SS32 · 04-23-2008, 08:34 AM

Took some video this morning. First one is a cold start. The car sat overnight and it's 60 degrees outside. Second one is starting it up after it had warmed up.

I took these with my phone, so the sound isn't very good, but you can watch the tach to see how long it takes.

!Xoible · 04-23-2008, 09:00 AM

what are these vid's man? i cant hear the crank

!Xoible · 05-08-2008, 10:37 AM

my crank is getting longer warm or cold. today when it was cold it was coughing thru the crank as if it was about to fail then kept on cranking. i should take a video of this, it's getting to a point where im worried

rvacha · 05-08-2008, 11:14 AM

Quote:

Originally Posted by kbk_75

Mine generally gets going slightly quicker than that video.

+1

04-21-2008, 05:00 AM	#23
malter2.0 Banned 61 Rep 908 Posts Drives: em-funf Join Date: Jun 2006 Location: SF Bay Area iTrader: (0) Garage List 2000 E39 M5 - current [0.00] 2007 E92 335i - SOLD [0.00] 1996 E36 M3-SOLD [0.00] 2000 E39 M5-SOLD [0.00] 2001 E46 M3-SOLD [0.00] 1995 E36 M3-SOLD [0.00]	sounds like you are making it crank longer. i believe you can "let it go" earlier and it would still start. maybe?
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04-21-2008, 08:51 AM	#24
!Xoible Banned 837 Rep 46,029 Posts Drives: .... Join Date: Nov 2006 Location: . iTrader: (4) Garage List 2008 M3 [4.00] 2007 335i [9.00] 2008 528i [8.00] 2006 Infiniti - G35 ... [8.00]	i have long cranks when it's cold. we'll see where it goes
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04-21-2008, 12:47 PM	#25
valeram Major 37 Rep 1,413 Posts Drives: 992 TTS, 991.2 GT3 T, F80 M3 C Join Date: Oct 2006 Location: Dublin, OH iTrader: (0)	Mine won't start. Oh sorry, my car is not built yet. Sounds normal to me. I just hope that the new M3 is not using the same problematic 335 fuel pump.
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04-21-2008, 01:29 PM	#26
!Xoible Banned 837 Rep 46,029 Posts Drives: .... Join Date: Nov 2006 Location: . iTrader: (4) Garage List 2008 M3 [4.00] 2007 335i [9.00] 2008 528i [8.00] 2006 Infiniti - G35 ... [8.00]	i'd hope not!! in any case it doesnt bother me. it can take 60 seconds starting up if she wants, i know it'll save me over 6 minutes on my commute anyway @ Fithhh i couldnt play the vid u posted, i have to go home to check it. mine's no longer than 1-2 seconds, just not immediate
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04-21-2008, 03:48 PM	#28
!Xoible Banned 837 Rep 46,029 Posts Drives: .... Join Date: Nov 2006 Location: . iTrader: (4) Garage List 2008 M3 [4.00] 2007 335i [9.00] 2008 528i [8.00] 2006 Infiniti - G35 ... [8.00]	as long as the part is available it's not a problem....
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04-21-2008, 05:27 PM	#29
nusevad O! So Sour!! 552 Rep 15,615 Posts Drives: Fast 240z / Slow M3 Join Date: Apr 2007 Location: 'Merica! iTrader: (24) Garage List 1971 Datsun 240z [0.00] 2008 M3 [9.60]	I started the car up today after a drive when the engine warmed up and the crank was shorter. Im thinking the crank is long on initial startup on cold engines. __________________
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04-21-2008, 06:51 PM	#30
SS32 Major 156 Rep 1,429 Posts Drives: 2008 M3 Join Date: May 2007 Location: Raleigh, NC iTrader: (0)	It's definitely when the engine is cold. I noticed it more so this morning than normal b/c of this thread. But when I left to head home, and the car was still somewhat warm, it cranked right up. __________________ V1 DIY - Blinder M45 DIY - Exhaust Cutouts - Removed Clutch Pedal Spring DIY - Fiamm Air Horns
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04-21-2008, 08:10 PM	#31
Shade Captain 45 Rep 902 Posts Drives: 12 AW F10 M5 Join Date: Mar 2008 Location: Chicago / Hong Kong iTrader: (1)	Got a respond from kiddo's car. He was told by the Service guy that he need to change his Fuel pump... __________________ 08 E92 M3 AW M-DCT 09 INDxRENN-SPEC Project GT-R
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04-21-2008, 09:17 PM	#33
oneginee Banned 16 Rep 415 Posts Drives: GT3 RS Join Date: Oct 2007 Location: SE iTrader: (0)	The fuel system must maintain a specified "rest" pressure with the engine shut off. You may have a leaking fuel pump check valve, or leaky pressure regulator that drain rest pressure and cause long cranking times. OR dirt, sediment or other debris in the tank can cause the pump’s check valve to stick open (which can cause a hard starting condition due to loss of pressure when the engine is shut off) If you start having more symptoms like rough idle, hesitation, stumbling, loss of high-speed power it is clearly due to loss of fuel pressure. It may not be the fuel pump can also be caused by a restriction in the fuel line or a defective fuel pressure regulator. That said I remember when I testdrove the M3 I did notice the crank time was a bit longer than my SL55 AMG. It may be normal.
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04-21-2008, 09:24 PM	#34
Pancho Commander 14 Rep 222 Posts Drives: BMW 530i Join Date: Nov 2007 Location: Mexico iTrader: (0)	It is a long startup. I now have > 5,000 Kms. and honestly never felt such a long time. In my M3 it is always short and consistent. I would take it in just to be sure.
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04-22-2008, 01:56 PM	#35
fmquadri Private First Class 11 Rep 150 Posts Drives: 08 E92 M3 Join Date: Mar 2008 Location: SF Bay Area iTrader: (0)	After watching the 1st video I realized that my cranks are longer consistently. Here's an example from a few moments ago. 62 degrees in the garage and about 16 hours since being driven last.
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04-22-2008, 04:23 PM	#36
!Xoible Banned 837 Rep 46,029 Posts Drives: .... Join Date: Nov 2006 Location: . iTrader: (4) Garage List 2008 M3 [4.00] 2007 335i [9.00] 2008 528i [8.00] 2006 Infiniti - G35 ... [8.00]	even when it's warm? it's not instant but i dont think mine's abnormal... when it's cold it's normal to have a longer crank. u guys are worrying too much. if it gets to like 3-5 seconds i'd worry about it. again i havent watched the vid's
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04-22-2008, 04:29 PM	#37
SS32 Major 156 Rep 1,429 Posts Drives: 2008 M3 Join Date: May 2007 Location: Raleigh, NC iTrader: (0)	Yeah, I don't think it's long enough to worry about. Have you never had a car that took a second to crank? __________________ V1 DIY - Blinder M45 DIY - Exhaust Cutouts - Removed Clutch Pedal Spring DIY - Fiamm Air Horns
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04-22-2008, 04:34 PM	#38
!Xoible Banned 837 Rep 46,029 Posts Drives: .... Join Date: Nov 2006 Location: . iTrader: (4) Garage List 2008 M3 [4.00] 2007 335i [9.00] 2008 528i [8.00] 2006 Infiniti - G35 ... [8.00]	everyone is paranoid coz of 335 issue. but hey, as long as the part is available who cares, just enjoy it and dont let it bother you.....
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04-22-2008, 10:33 PM	#39
skierman64 Brigadier General 127 Rep 3,071 Posts Drives: E92M3-E46M3-E46Wagon-E89Z4-E36 Join Date: Dec 2006 Location: Greater St Louis Metro area iTrader: (1) Garage List 1994 325is Race Car [0.00] 2011 BMW Z4 [0.00] 1998 M3 Coupe [0.00] 2008 M3 Coupe [0.00]	My car cranks very similiar to both post #1 and post #37. Nothing abnormal for this car at all. We aren't having fuel pump problems on car with less than a week on them. Remember this car has a whole new type of measuring pressure altitude (aviation term) and temperature than other cars in the BMW lineup and most other fuel injected cars world wide. Perhaps it take a few tenths of a second longer to find the right mixture on start up. __________________ Invest Wisely...The best mod for your money?? BMWCCA high performance driver's school. The mod that lasts a lifetime and improves the performance of any car you drive[/LEFT]
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04-22-2008, 10:47 PM	#40
M3Kevin Private First Class 17 Rep 128 Posts Drives: Alpine White 2008 M3 Join Date: Mar 2008 Location: Phoenix AZ iTrader: (0) Garage List 2004 Corvette Z06 [0.00] 2004 GT3 [0.00] 2008 M3 [0.00]	Doesn't seem particularly long to me? __________________ A happy tire is a squeeling tire. Happiness isn't around the corner - it IS the corner!
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04-23-2008, 08:34 AM	#41
SS32 Major 156 Rep 1,429 Posts Drives: 2008 M3 Join Date: May 2007 Location: Raleigh, NC iTrader: (0)	Took some video this morning. First one is a cold start. The car sat overnight and it's 60 degrees outside. Second one is starting it up after it had warmed up. I took these with my phone, so the sound isn't very good, but you can watch the tach to see how long it takes. __________________ V1 DIY - Blinder M45 DIY - Exhaust Cutouts - Removed Clutch Pedal Spring DIY - Fiamm Air Horns
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04-23-2008, 09:00 AM	#42
!Xoible Banned 837 Rep 46,029 Posts Drives: .... Join Date: Nov 2006 Location: . iTrader: (4) Garage List 2008 M3 [4.00] 2007 335i [9.00] 2008 528i [8.00] 2006 Infiniti - G35 ... [8.00]	what are these vid's man? i cant hear the crank
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05-08-2008, 10:37 AM	#43
!Xoible Banned 837 Rep 46,029 Posts Drives: .... Join Date: Nov 2006 Location: . iTrader: (4) Garage List 2008 M3 [4.00] 2007 335i [9.00] 2008 528i [8.00] 2006 Infiniti - G35 ... [8.00]	my crank is getting longer warm or cold. today when it was cold it was coughing thru the crank as if it was about to fail then kept on cranking. i should take a video of this, it's getting to a point where im worried
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