1970 Charging System not working right? - Ford Mustang Forum
 
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post #1 of 6 (permalink) Old 03-25-2013 Thread Starter
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1970 Charging System not working right?

Bought and installed (correctly) a new alternator, and voltage regulator the other day (Saturday). The mustang started up right away....went to go start it this morning and nothing. Gave it a jump start, and it started.

So, what could be causing this? ....Ive searched and read that a "parasitic drain" can be a culprit....also I found on my mustang the wire to the starter, and a wire to the coil are in really bad shape. Can this contribute?


1970 Mustang Grande 351w - New DD

1989 Jeep Cherokee 4.0 - Lifted - Previous DD - Sold
1990 Jeep Cherokee 4.0 - Stock - Gave away
1978 Jeep Wagoneer 360 - Stock - Gave Away
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post #2 of 6 (permalink) Old 03-25-2013
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You said it, Parasitic Drain. The process isn't that hard to do, and that's the only way to find it. :kooky:

The wires you mentioned should be repaired, but for now they are working, since you can start by boosting the battery.


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post #3 of 6 (permalink) Old 03-25-2013
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Most parasitic battery drains are caused by aftermarket electronics. Start there. Good luck!

1964.5 convertible and a 2012 Sterling Grey GT. 100 hp. and 412 hp. Go Bama, Roll Tide! 2015 National Champions! Clemson put up one heck of a fight!
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post #4 of 6 (permalink) Old 03-25-2013 Thread Starter
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Quote:
Originally Posted by Bryonl View Post
Most parasitic battery drains are caused by aftermarket electronics. Start there. Good luck!
No aftermarket additions...tomorrow Im gonna hunt down the drain.

1970 Mustang Grande 351w - New DD

1989 Jeep Cherokee 4.0 - Lifted - Previous DD - Sold
1990 Jeep Cherokee 4.0 - Stock - Gave away
1978 Jeep Wagoneer 360 - Stock - Gave Away
351wGrande1970 is offline  
post #5 of 6 (permalink) Old 03-26-2013
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If you have a test light hook it up between the neg. post and neg. cable end with the cable disconnected. If the test light bulb lights you have a drain. Now with the doors closed, start pulling fuses one at a time. When the bulb goes out you found the circuit the drain is on.
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post #6 of 6 (permalink) Old 03-29-2013 Thread Starter
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Checked everything, and turns out my battery was bad. No leak

for the tips guys, was very helpful

1970 Mustang Grande 351w - New DD

1989 Jeep Cherokee 4.0 - Lifted - Previous DD - Sold
1990 Jeep Cherokee 4.0 - Stock - Gave away
1978 Jeep Wagoneer 360 - Stock - Gave Away
351wGrande1970 is offline  
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