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Go Back   Bimmerfest - BMW Forums > BMW Model Discussions > 5 Series > E34 (1989 - 1995)

E34 (1989 - 1995)

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  #1  
Old 09-14-2014, 05:57 AM
Lapin 229 Lapin 229 is offline
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Location: Jersey Shore
 
Join Date: Feb 2012
Posts: 106
Mein Auto: 1995 e34
Weird electrical, sort of start

Battery was dead, charged overnight. zero. (new Bosche battery)
Dead battery, wouldn't charge in car. Second backup battery (doesn't everybody!), started car, ran for twenty minutes, dash electronics died, no restart. Second battery will charge in car, now at 47%. No restart. New battery will charge out of car. Why god why?

Stomp test: flash one flash one flash one?

I originally thought it was the starter fuse (where), relay, solenoid or starter. Then it started and ran. So none of the above.

So I'm thinking, alternator. But a hot battery would start the car, turn on the radio and the stomp test worked. This alternator is 4 months old, it's rebuilt. Last rebuilt didn't work.

I know it's something electrical, stupid and hopefully cheap, but I'm leaning towards another Alternator. Which is a pain to change, but I'm getting good at it.

Help
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Peter

1995 e34 530i 164,000
1990 e34 525
1984 e30 325 junked
1990 GS N8303
1980 928 gone
1998 740 gone
1986 535 gone
1984 533 gone
1980 320 gone
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  #2  
Old 09-14-2014, 07:09 AM
Mr._Graybeard Mr._Graybeard is offline
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Location: Wisconsin
 
Join Date: Oct 2011
Posts: 226
Mein Auto: '95 540i, '87 325ic
What's the system voltage when the car is running? With the ignition turned on so warning lights are displayed, are you getting a "battery" warning light?

Your stomp code means that the system is finished reading codes. You need to reset it by pressing the accelerator pedal to the floor and holding it for several seconds. (I forget how many -- 10?)
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  #3  
Old 09-14-2014, 07:24 AM
Lapin 229 Lapin 229 is offline
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Location: Jersey Shore
 
Join Date: Feb 2012
Posts: 106
Mein Auto: 1995 e34
Now with a "hot" battery, I get nothing, no lights, no start. My e28 had a main breaker button under the drivers side panel. anything like that on an e34?

When it ran it read 14v. Whatever was dying is now dead. then again, I reconnected the battery and I got the hazard lights, dash lights and it started. But I don't trust it.

Could it be the immoblizer?
__________________

Peter

1995 e34 530i 164,000
1990 e34 525
1984 e30 325 junked
1990 GS N8303
1980 928 gone
1998 740 gone
1986 535 gone
1984 533 gone
1980 320 gone

Last edited by Lapin 229; 09-14-2014 at 07:43 AM.
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  #4  
Old 09-14-2014, 08:21 AM
E34ZombieHunter's Avatar
E34ZombieHunter E34ZombieHunter is online now
Nothin like an E34
Location: Lillington NC
 
Join Date: Feb 2013
Posts: 2,696
Mein Auto: 95 540i B/B
There is a fuseable link if that is what you mean.
The hazards and could cause no fuel pump could be the crash control module.
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Gotta love an E34!!
If you want to get junkyard parts remember one thing, if it was wrecked you know it was running/driving. You may not know how well, but it was.

READ THE STICKIES AT THE TOP OF THE PAGE!!

STOMP TEST

READ ME IM THE BIBLE

FAN CLUTCH

LOCKS

ANGEL EYES

Audio
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  #5  
Old 09-14-2014, 12:48 PM
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BMWFatherFigure BMWFatherFigure is offline
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Location: Perth, Western Australia
 
Join Date: Aug 2012
Posts: 2,345
Mein Auto: E23;E30;E38;E32;E34 +
Do you get a drain current with the battery in place? Should not exceed 10mA.
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Good - Fast - Cheap: Pick any two.
Current:
E23 735i; E32 735iL (X 2 - 1 Alpine White and 1 Glacier Blue); E34 535i; E38 735iL; R50 Cooper; R55 Cooper Clubman.
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  #6  
Old 09-14-2014, 01:13 PM
Lapin 229 Lapin 229 is offline
Officially Welcomed to the 'Fest
Location: Jersey Shore
 
Join Date: Feb 2012
Posts: 106
Mein Auto: 1995 e34
It's not the fuseable link and I'll check the ccm. I blew up my multimeter!
It might have been a drain caused by my drivers side door lock (fixed). I'm letting everything sit and self repair while I drink a beer.

White car needs the tranny installed. Lots to do.
__________________

Peter

1995 e34 530i 164,000
1990 e34 525
1984 e30 325 junked
1990 GS N8303
1980 928 gone
1998 740 gone
1986 535 gone
1984 533 gone
1980 320 gone
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  #7  
Old 09-14-2014, 03:34 PM
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E34ZombieHunter E34ZombieHunter is online now
Nothin like an E34
Location: Lillington NC
 
Join Date: Feb 2013
Posts: 2,696
Mein Auto: 95 540i B/B
WAIT, CCM and Crash Control Module are two VERY different things, please be aware of that.
CCM-Check Control Module
Crash control module is in the same fuse box as the CCM, but looks like a tall relay with a bunch of pins, it is next to the CCM.
__________________


Gotta love an E34!!
If you want to get junkyard parts remember one thing, if it was wrecked you know it was running/driving. You may not know how well, but it was.

READ THE STICKIES AT THE TOP OF THE PAGE!!

STOMP TEST

READ ME IM THE BIBLE

FAN CLUTCH

LOCKS

ANGEL EYES

Audio
Reply With Quote
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