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Author Topic: car died while driving  (Read 3130 times)

bih55

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car died while driving
« on: November 28, 2009, 01:10:34 AM »
ok yesterday I went to the store to get some stuff with my 318is. after I was done got in the car and started just fine, after a few minutes of driving I tried to accelerate and after I left off the gas pedal the throttle got stuck in around 5k rpm and I tried braking and the car just shut off? tried turning the key back on and no lights at all. on dash or anywhere else. had to push the car on some parking spot. I thought the battery got disconnected or something so I checked it. it didnt, but the battery was getting hot and drained. do these cars have an main fuse for the power? cuz none of the fuses got blown
« Last Edit: November 28, 2009, 11:00:44 AM by bih55 »
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dj91318is

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car died while driving
« Reply #1 on: November 28, 2009, 05:38:09 AM »
Wow! - Sounds like you have a major short on the battery positive side from Battery area to front to starter some where in that order. Better take a you a spare battery and an ohm meter with you or tow/pull it home. Look for charred wire insulation and use the sniffer to locate burnt rubber. GL
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bih55

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car died while driving
« Reply #2 on: November 28, 2009, 11:59:22 PM »
I think when I put the lower intake on. the red wire from the starter is touching that metal. so I guess that might be it
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DesktopDave

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car died while driving
« Reply #3 on: November 29, 2009, 09:32:45 AM »
Yeah - I agree, might be a positive wire short.  I don't think there is a main fuse, but there is a main relay under a shroud on the firewall.  Could also be a battery internal short, they do that on occasion.  I'd grab the battery from the car & haul it to a car shop.  They'll test them for free & you can eliminate that as a problem before you tear anything else apart.

I'm pretty sure the starter is not fused.  Check the harness wires running behind the engine from the tray on the passenger side firewall.  That's where the positive junction blocks are for the battery pass-through from the trunk.
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bih55

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car died while driving
« Reply #4 on: December 07, 2009, 01:22:34 AM »
found the problem. it was the wire that plugs to the idle speed sensor. it might me damaged but I cant see and dont feel like taking the whole thing apart again. I just unplugged the wire and drives fine
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