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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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  #1  
Old 09-19-2013, 02:51 PM
jvell522 jvell522 is offline
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Location: Grand Rapids, MI
 
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Mein Auto: 1987 E30 325
cluser/fuse problems?

hey guys earlier this week i posted about how my car wouldn't start, i figured out what the problem was... it was fuse #11 and throughout this week I've replaced the fuse about 5 or 6 times. so what happens is ill just be driving along and every thing but my speedo will just drop to 0 and after shut it off it wont turn on till you replace fuse #11. i have no idea what to do now and i sure don't wanna be replacing plugs in this thing 10 times a week. any help is t appreciated thanks.


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  #2  
Old 09-19-2013, 03:05 PM
actletpone actletpone is offline
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Mein Auto: E30 320i
fuse #11 is a 7.5 amp fuse for the fuel pump
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  #3  
Old 09-19-2013, 03:57 PM
jvell522 jvell522 is offline
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Location: Grand Rapids, MI
 
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Mein Auto: 1987 E30 325
cluser/fuse problems?

im aware of that...


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  #4  
Old 09-19-2013, 04:01 PM
jvell522 jvell522 is offline
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Location: Grand Rapids, MI
 
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Mein Auto: 1987 E30 325
cluser/fuse problems?

its also my main and aux.


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  #5  
Old 09-19-2013, 04:30 PM
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woodenbmw woodenbmw is online now
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Mein Auto: 1987 BMW 325
Re: cluser/fuse problems?

You're going to have to trace the cause. Check all of your connections, look for broken wires, that sort of thing...good luck

1987 325e automatic sedan
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  #6  
Old 09-19-2013, 04:31 PM
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woodenbmw woodenbmw is online now
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Re: cluser/fuse problems?

When does the speedo usually drop off ?

1987 325e automatic sedan
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  #7  
Old 09-19-2013, 06:25 PM
jvell522 jvell522 is offline
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Location: Grand Rapids, MI
 
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Mein Auto: 1987 E30 325
cluser/fuse problems?

the speedo doesn't drop. its just my rev counter, the temp gauge, and the gas gauge


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  #8  
Old 09-19-2013, 06:49 PM
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woodenbmw woodenbmw is online now
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Mein Auto: 1987 BMW 325
Re: cluser/fuse problems?

Ok, so when they drop off, are you hitting the gas, maybe a bump in the road, hitting the brakes....just trying to figure out your problem in my head. When I bought my car, the only thing on the dash that did work was my tachometer. I managed to get everything to work again by taking the cluster out, cleaning the crud and dirt out of it, and used a dab of dielectric grease in the connectors. After I put it all back together, everything works. You have to keep in mind that these cars are roughly 20-30 years old.

1987 325e automatic sedan
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  #9  
Old 09-19-2013, 07:08 PM
jvell522 jvell522 is offline
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Location: Grand Rapids, MI
 
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Mein Auto: 1987 E30 325
cluser/fuse problems?

i realize how old they are... haha but yeah ive already replaced my cluster once... i just dont have a clue though...


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  #10  
Old 09-19-2013, 07:09 PM
jvell522 jvell522 is offline
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Location: Grand Rapids, MI
 
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Mein Auto: 1987 E30 325
cluser/fuse problems?

it maybe from accelerating fast... im not sure


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  #11  
Old 09-19-2013, 07:14 PM
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woodenbmw woodenbmw is online now
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Re: cluser/fuse problems?

Try checking your connectors at the fuel pump, maybe something is loose causing a short...dunno...

1987 325e automatic sedan
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  #12  
Old 09-19-2013, 07:42 PM
jvell522 jvell522 is offline
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Mein Auto: 1987 E30 325
cluser/fuse problems?

ill do a good look through everything tomorrow i haven't really had time to do a thorough check through that stuff


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  #13  
Old 09-19-2013, 08:09 PM
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woodenbmw woodenbmw is online now
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Re: cluser/fuse problems?

Good luck, let us know what you do or don't find


1987 325e automatic sedan
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  #14  
Old 09-21-2013, 06:43 AM
Ppancho325ic Ppancho325ic is offline
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Fuse #11

Hi Jevell,
I had a similar problem. Fuse #11 burned so the fuel pumps wouldn't work. I replaced it
and nothing. So I started trouble shooting it. To make a long story short. The connection
that receives fuse# 11 was broken. Its not really visible b/c its inside the power distribution box. If you want to seethe connection theres three screws that hold it down One is underneath a relay. U got some good points here but check all connections first they do come loose.
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  #15  
Old 09-21-2013, 08:29 PM
jvell522 jvell522 is offline
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Location: Grand Rapids, MI
 
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Mein Auto: 1987 E30 325
cluser/fuse problems?

alright awesome! ill give it a look thanks for your help


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  #16  
Old 09-27-2013, 09:07 AM
my05crf280 my05crf280 is offline
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Loose connections wouldnt blow the fuse. Its gotta b a short. Unfortunately finding shorts can require starting in the middle and eliminating half of the system which can be difficult when its intermittent. Has the car even been in an accident? Are there anyvpoints where the wires go through boots that moveex(wires that run into the doors,door jam) thats typically where shorts occur.
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  #17  
Old 09-28-2013, 05:47 AM
cjmertz cjmertz is offline
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Any progress on this ?? any more clues ??
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  #18  
Old 09-28-2013, 05:58 AM
2002-530I 2002-530I is offline
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cluser/fuse problems?

Just to be clear, what your saying is the engine is dying THEN OBVIOUSLY the rpm's drop? Sounds like a bad fuel pump. Do you have a way to check the amp draw on the pump?
Adam


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  #19  
Old 09-29-2013, 09:12 AM
my05crf280 my05crf280 is offline
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Not trying to argue but is it common for pumps to work then intermittenly short? Or are u thinking that since its worn it is drawing close to 10 amps all the time and occasionally peaks blowing the fuse? experience is that they blow and thats it. Just curious. Id hate for him to replace a pump for an intermittent short by a worn through wire. Again. Only asking.

Last edited by my05crf280; 09-29-2013 at 09:14 AM.
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  #20  
Old 09-29-2013, 09:19 AM
2002-530I 2002-530I is offline
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cluser/fuse problems?

I'd guess its very possible for it to "wear out" or become hard to turn, thus for drawing high amps and blowing a fuse. I'm not telling him to replace the pump. I'm just saying that if an electric motor is blowing a fuse,,,wouldn't you think somehow testing that motor good place to start?


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  #21  
Old 09-29-2013, 10:39 AM
my05crf280 my05crf280 is offline
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I absolutely agree its a very good place to look. Just me asking. If pumps frequently go bad by drawing more current its something I will keep in mind for troubleshooting in the future. It definitely makes sense.
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  #22  
Old 09-29-2013, 11:03 AM
2002-530I 2002-530I is offline
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Mein Auto: 2002 BMW 530I Sport
cluser/fuse problems?

Typically no. Not other auto makers at least. Can't speak for BMW in particular. I've replaced many bad fuel pumps and not one bad fuse...



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