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E34 (1989 - 1995)

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  #1  
Old 10-05-2013, 11:16 AM
Ferrari34 Ferrari34 is offline
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Mein Auto: 89 535i
89 e34 will not start HELP!!

My 89 e34 5spd will not start, when I turn the key nothing happens at all not even a turn over or click, BUT when I turn the key to start it the dash comes on radio works interior lights work headlights work basically everything so the battery seems fine although it does have a bad cell in it, I have been starting it and driving it daily for about 2 months after getting it trickled charged until now..

*and also before I started it I accidentally knocked it out of gear, could this possibly have something to do with the transmission position switch?

I've checked the wiring, fuses and relays they all seem fine. Please help me with any suggestions...

Your input is really appreciated

Thank You


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  #2  
Old 10-05-2013, 05:27 PM
sse34 sse34 is offline
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Location: New Jersey
 
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Mein Auto: E34 530it
89 e34 will not start HELP!!

Check your crank shaft positioning sensor


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  #3  
Old 10-05-2013, 06:23 PM
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BMR_LVR BMR_LVR is offline
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Location: Asheboro, NC
 
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Mein Auto: 1992 525i
Get a new battery. You already know that your old one is faulty. Just because the lights on the dash come on is not a valid indicator of a good battery.
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Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #4  
Old 10-05-2013, 08:33 PM
Ferrari34 Ferrari34 is offline
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89 e34 will not start HELP!!

Thanks for replying

I will look into both possibilities


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  #5  
Old 10-05-2013, 11:33 PM
sse34 sse34 is offline
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Location: New Jersey
 
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Mein Auto: E34 530it
89 e34 will not start HELP!!

Quote:
Originally Posted by BMR_LVR View Post
Get a new battery. You already know that your old one is faulty. Just because the lights on the dash come on is not a valid indicator of a good battery.
Would agree

But then again .. Dunno cheapest solution first is the battery so I would go there first


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  #6  
Old 10-06-2013, 06:32 AM
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BMR_LVR BMR_LVR is offline
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Location: Asheboro, NC
 
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Quote:
Originally Posted by sse34 View Post
Check your crank shaft positioning sensor
Quote:
Originally Posted by sse34 View Post
Would agree

But then again .. Dunno cheapest solution first is the battery so I would go there first
A failed CPS will not prevent the engine from cranking over.

I would normally suggest that he check his battery, but in already indicated in the OP that his battey is bad.

Known bad battery + no cranking over = need new battery.
__________________
Most problems are usually something simple !

Quote:
Originally Posted by noego View Post
It's Deja Poo - as in, I've heard this **** before.
Steve

Calypso Red 1992 525i with 200K miles

1991 735i - Sold
1992 525i - Sold
1995 325is - Sold
2000 528i - Sold

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  #7  
Old 10-10-2013, 04:05 PM
Ferrari34 Ferrari34 is offline
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Mein Auto: 89 535i
89 e34 will not start HELP!!

it is the battery. now for these cars does the battery have to be vented ? Since they're under the backseat. Thank you


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  #8  
Old 10-10-2013, 06:25 PM
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Doktor Bert Doktor Bert is offline
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Quote:
Originally Posted by BMR_LVR View Post
A failed CPS will not prevent the engine from cranking over.
+1. A bad crank sensor would disable ignition coil reference, but allow cranking.



Quote:
Originally Posted by BMR_LVR View Post
Known bad battery + no cranking over = need new battery.
Absolutely...
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  #9  
Old 10-10-2013, 06:26 PM
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Doktor Bert Doktor Bert is offline
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Quote:
Originally Posted by Ferrari34 View Post
it is the battery. now for these cars does the battery have to be vented ? Since they're under the backseat. Thank you


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Absolutely.

Vent tube kits are available at any battery shop...
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