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E36 (1991 - 1999)
The E36 chassis 3-Series BMW was a huge hit among driving enthusiasts from the first moment the car hit the pavement. The E36 won numerous awards over the years it was produced and is still a favorite of many BMW enthusiasts to this day! -- View the E36 Wiki

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  #1  
Old 12-09-2019, 11:34 AM
Zesinlijn Zesinlijn is offline
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325i long crank/ hard start

Hello!

I need some help from you e36 gurus!

My 92 325i with vanos developed a long cranking issue.

When the car has been stationary for longer than 5 minutes the cranking takes more time than normal. When the engine finally turns on it takes 5 seconds to reach a steady idle rpm

If you start the car after it just had been running it will start up just fine.

The car drives great, has full power but sometimes when still cold it will judder slightly at a red light.

Already replaced without succes: fuel pump, fuel filter.

Any ideas in which direction to start looking?

Cleaning icv? Cam position sensor? Coolant temp sensor?

Thank you & greets from Belgium

Last edited by Zesinlijn; 12-09-2019 at 02:01 PM.
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  #2  
Old 12-10-2019, 12:21 AM
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hornhospital hornhospital is offline
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Welcome to Bimmerfest!

Is the VANOS oil line clear? Is the wiring to the VANOS solenoid intact? Is the fuel pressure regulator vacuum line intact?
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1993 325is M3 clone"Ashlyn"; 1993 325is "Elvira"; 1985 635CSi "Katja"; 1984 633CSi "Sylvia"; 1987 325is "Odette";1995 318is"Bebe "; 1985 325e "Hazel Ann"

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Old 12-11-2019, 12:20 AM
Zesinlijn Zesinlijn is offline
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I will check all the vacuum lines this weekend

how could the vanos oil line and wiring interfere with startup?
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Old 12-11-2019, 12:51 AM
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hornhospital hornhospital is offline
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Mein Auto: E24x2,E36x3,E30x2, F150
If the VANOS isn't returning to idle position it's advancing the cam when it doesn't need to be. It's unlikely that the VANOS is the problem, but if the wiring is damaged, it could be. It's easy to check, figured I'd throw that in there as a possible.
__________________
Quotes to live by:
guessing gets expensive...drivinfaster
nothing is more expensive than a cheap BMW...c4harpe13
buying a ratty example (of a BMW) is a parasitic relationship.(and you ain't the mosquito) 7pilot
Ken Kanne, Silverhill, AL, Bimmerfest Site Moderator
BMW-CCA #441426

1993 325is M3 clone"Ashlyn"; 1993 325is "Elvira"; 1985 635CSi "Katja"; 1984 633CSi "Sylvia"; 1987 325is "Odette";1995 318is"Bebe "; 1985 325e "Hazel Ann"

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Old 12-11-2019, 01:32 AM
Zesinlijn Zesinlijn is offline
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I see! thanks for the advice. the Vanos Wiring looks in good condition..

the car didnt have fault codes stored in the system as well..
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