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Voltage regulator probs #1222132
04/25/12 01:38 PM
04/25/12 01:38 PM
Joined: Nov 2007
Posts: 1,522
Orleans, Ontario
moparcanuk Offline OP
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moparcanuk  Offline OP
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Joined: Nov 2007
Posts: 1,522
Orleans, Ontario
Stock 69 440 GTX. 3 voltage regulators in 3 weeks. Each time, one of the two wires inside was vaporized. I leave my MP3 player plugged into the lighter socket. I would assume that if that was the problem a fuse would blow. Any ideas?

Re: Voltage regulator probs [Re: moparcanuk] #1222133
04/25/12 07:24 PM
04/25/12 07:24 PM
Joined: Sep 2007
Posts: 14,889
up yours
Supercuda Offline
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I assume this is the single field connection system?

I had the same problem years ago with my 64 300. The wire from the terminal to the coil (inside the box) would blow. I ended up replacing that wire with a thicker one that never blew and I never had and problems after that.


They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
Re: Voltage regulator probs [Re: Supercuda] #1222134
04/25/12 07:43 PM
04/25/12 07:43 PM
Joined: Apr 2010
Posts: 4,154
bethlehem pa
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mikemee1331 Offline
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bethlehem pa
Quote:

I assume this is the single field connection system?

I had the same problem years ago with my 64 300. The wire from the terminal to the coil (inside the box) would blow. I ended up replacing that wire with a thicker one that never blew and I never had and problems after that.


if the fuse is 'over-rated' for the size wire you are using the fuse would never blow. it could also be the tunes in your MP3 player .

Re: Voltage regulator probs [Re: mikemee1331] #1222135
04/26/12 12:21 AM
04/26/12 12:21 AM
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zrxkawboy Offline
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A short in the field circuit (either alternator or wiring) can take out a regulator.


It's Swifty! Swifty, you toad sucker!
Re: Voltage regulator probs [Re: zrxkawboy] #1222136
04/26/12 11:32 AM
04/26/12 11:32 AM
Joined: Sep 2006
Posts: 616
TP Exit 7, NJ, USA
DANA60 Offline
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TP Exit 7, NJ, USA
Oh yeah, the field wire or even inside the alt is trash.

CHINESE PARTS! junk

7180371-IMG_3511.jpg (38 downloads)
Re: Voltage regulator probs [Re: zrxkawboy] #1222137
04/26/12 09:21 PM
04/26/12 09:21 PM
Joined: Nov 2007
Posts: 1,522
Orleans, Ontario
moparcanuk Offline OP
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moparcanuk  Offline OP
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Posts: 1,522
Orleans, Ontario
Quote:

A short in the field circuit (either alternator or wiring) can take out a regulator.




Bingo!! I put a fuse between the alternator and voltage regulator and blew it within 2 minutes. The alternator is definitely shorting out periodically.

Re: Voltage regulator probs [Re: moparcanuk] #1222138
04/26/12 11:22 PM
04/26/12 11:22 PM
Joined: Jan 2003
Posts: 5,445
So Cal
Sinitro Offline
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So Cal
Quote:

Stock 69 440 GTX. 3 voltage regulators in 3 weeks. Each time, one of the two wires inside was vaporized. I leave my MP3 player plugged into the lighter socket. I would assume that if that was the problem a fuse would blow. Any ideas?




Have you sanded the bottom of the voltage regulator down to bare metal..
It needs a solid ground connection..

Just my $0.02...







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