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E30 (1982 - 1993)
God's Chariot. The E30 was produced primarily from 1982 through 1991. The cabriolet was the one exception which was produced through 1993.

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  #26  
Old 03-17-2011, 03:41 PM
olfson olfson is offline
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Any other suggestions downhiller?

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  #27  
Old 03-17-2011, 03:45 PM
olfson olfson is offline
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Mein Auto: 1990 325i Convert. E30
So, the guy who owned this car before me put in a subwoofer, amp, and large capacitor...
After your 'cca' comment- I thought maybe it was drawing a bunch of power during the time of ignition... so I unplugge the amp. It started right up. May be a fluke... but give me about 30minutes, I will try again.

-chris

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  #28  
Old 03-17-2011, 04:41 PM
olfson olfson is offline
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Mein Auto: 1990 325i Convert. E30
It has started twice with no issue- thirty to fourty minute intervals seperating each start.



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  #29  
Old 03-17-2011, 08:07 PM
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noexceptions325 noexceptions325 is offline
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sounds like you found the problem, but with the amp drawing so much voltage it may just be showing you a potential problem.. i would have your battery tested and make sure its holding a charge properly and your alt checked.

I would put money on one of the two being on its way out

good luck man
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  #30  
Old 03-17-2011, 08:40 PM
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downhiller downhiller is offline
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Quote:
Originally Posted by olfson View Post
So, the guy who owned this car before me put in a subwoofer, amp, and large capacitor...
After your 'cca' comment- I thought maybe it was drawing a bunch of power during the time of ignition... so I unplugge the amp. It started right up. May be a fluke... but give me about 30minutes, I will try again.

-chris

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yep. theres your issue. depending on how he has the cap wired in, you might be able to throw a toggle switch to control it alil better
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  #31  
Old 03-17-2011, 08:49 PM
olfson olfson is offline
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Nope, oddly it was a fluke... both times.

I got home after an hour drive and fifteen minutes later --long cranking.

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  #32  
Old 03-17-2011, 08:59 PM
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downhiller downhiller is offline
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whats the amp draw on the starter?
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  #33  
Old 03-21-2011, 02:13 AM
olfson olfson is offline
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Mein Auto: 1990 325i Convert. E30
Its been raining here so I haven't got a chance to check yet. But I changed the mass air sensor --it starts frequently without much hesitation. Unless the car is still warm.

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  #34  
Old 04-03-2011, 06:52 PM
olfson olfson is offline
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Mein Auto: 1990 325i Convert. E30
So, I swapped the thermo time switch for a used one, and the problem worsened. So, I assume this may be it.
But another issue has come up that is quite a bit worse. I noticed a little bit of coolant leaking, and I drove home; and just before I got home it got really hot and smoked a little...
Now I see oil dripping (small amount) on to the ground. There is a bit of oil on the crank case, under the oil filter, the filter looks wet too... the dip stick now shows the oil level being just below the "low" line. It was in between both lines just yesterday.
I'm not sure where its leaking from, or a good method of finding out. Any tips?

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  #35  
Old 04-03-2011, 09:24 PM
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noexceptions325 noexceptions325 is offline
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eeek
HEAD gasket alert!

dont drive your car anymore dude
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  #36  
Old 10-15-2012, 10:27 PM
AdamHarrison AdamHarrison is offline
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Change The ECU Chip

it was a common problem on them. changing the ecu chip should fix it.
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  #37  
Old 10-17-2013, 08:03 PM
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Studawg Studawg is offline
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Quote:
Originally Posted by AdamHarrison View Post
it was a common problem on them. changing the ecu chip should fix it.
What????

Anyway, old thread I know...but I have the same problem as the OP on my E30. Takes several seconds of cranking when cold and at random times throughout the day. Sometimes, it starts right up fine.

I also have a slight hum at certain speeds. I was thinking wheel bearings, but now Im thinking these two symptoms could be related and its my fuel pump causing both the humming and the hard starts. Does that sound logical? Any ideas?
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Last edited by Studawg; 10-17-2013 at 08:04 PM.
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