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General E46 Forum
This is the place to get answers, opinions and everything you need related to your E46 (sedan, coupe, convertible and wagon) BMW!

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Old 06-20-2014, 07:09 PM   #1
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Join Date: Jun 2014
Location: chicago
Posts: 2
My Ride: 99 328i
intermittent long crank time followed by no power

99 328i, 160k.

has new vanos seals, fuel pump and filter, spark plugs, intake cam sensor, no cel, no stored dtcs

sometime if I start car right away it has a long crank time before starting. after the long crank time and it does start it has no power, drives fine, no bogging or sputtering just no power. I pull over and shut car off then restart and it start up right away and has normal power.

most of time I key on, engine off for like 5 seconds before I start to prevent this problem

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Old 06-21-2014, 11:05 AM   #2
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Join Date: Aug 2012
Location: Clemson, SC
Posts: 1,448
My Ride: 2001 BMW 325i ZSP
Sounds like a crankshaft sensor failure. Any codes? You would need a BMW scanner to scan for them.

Last edited by scarede46er; 06-21-2014 at 11:06 AM.
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Old 06-21-2014, 08:59 PM   #3
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Join Date: Jun 2014
Location: chicago
Posts: 2
My Ride: 99 328i
I have scanner, no codes.

ill check the rpm on scanner when I get a long crank
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Old 06-21-2014, 09:40 PM   #4
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Join Date: Nov 2009
Location: Fairfax, VA USA
Posts: 22,856
My Ride: 330CiC, M5, X5, E93
Originally Posted by objec123 View Post
I have scanner, no codes.

ill check the rpm on scanner when I get a long crank
BTW you do not need BMWScanner or a specific BMW scan tool for this. A standard OBDII scan tool that read real time data is all that is really needed.

Just use your tachometer as a crank sensor tool, the tach should register around 200-400 RPM when cranking.
Solve your misfires, lean codes, rough idle - http://forum.e46fanatics.com/showthread.php?t=897616

Fuel pump failures - http://forum.e46fanatics.com/showthread.php?t=929501

Temp Info - http://forum.e46fanatics.com/showthread.php?t=964491

Hidden OBC Menu - Check Voltage, Temp, Fuel Level - http://forum.e46fanatics.com/showthread.php?t=239619

E46/E39 GM5 Door Lock Info - www.bmwgm5.com

Lower hose temp switch O-ring - BMW #13621743299
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