ALT light stays on 65 coupe.

hotrodredneck

New Member

Jul 28, 2004

200

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Newport News Va

Dec 5, 2006

#1

• Dec 5, 2006

• #1

I know its been brought up before probably, but we picked up my wifes 65 coupe tonight and the ALT light stays on. It has a brand new Alt in it, and a red top battery. Where do I go to from there?

 

krash kendall

Active Member

Nov 19, 2004

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36

Aldergrove, B.C. Canada

Dec 5, 2006

#2

• Dec 5, 2006

• #2

First I would suggest checking the connections to the alternator, making sure they are correct then check the plug to the voltage regulator.

 

hotrodredneck

New Member

Jul 28, 2004

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Newport News Va

Dec 6, 2006

#3

• Dec 6, 2006

• #3

cool, thanks

 

K

Kman

Founding Member

Nov 29, 2000

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Connecticut

Dec 6, 2006

#4

• Dec 6, 2006

• #4

How old is the (assuming you still have the mechanical) regulator? I had a new one go bad in under 2 months last year. Also check the alternator harness - my original one had a bad wire that was virtually undetectable. They are relitively cheap to replace (under $25) if there are any doubts

 

LazerStang760

Founding Member

Mar 8, 2002

97

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California

Dec 6, 2006

#5

• Dec 6, 2006

• #5

I had the same problem with my 65....after replacing the alternator, battery and checking the connections it ended up being the voltage reg. You can pick one up from nappa for like 10 bucks or something and its a quick unplug and plug install, and two mounting screws, takes all of 5 min.

 

hotrodredneck

New Member

Jul 28, 2004

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Newport News Va

Dec 6, 2006

#6

• Dec 6, 2006

• #6

cool, I will look into that...now forgive me please because this is my first Classic Stang, the VR is by the drivers side headlight isnt it? Seems like a strange place to put it, since the ALT is on the other side

 

302 coupe

Founding Member

Mar 2, 2000

1,952

3

36

Macon, Ga.

Dec 6, 2006

#7

• Dec 6, 2006

• #7

yep, thats it. Might not be so easy to find a replacement in Germany though.

 

T

tylerrocks

New Member

Oct 13, 2005

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Big Spring, TX

Dec 6, 2006

#8

• Dec 6, 2006

• #8

Is is a one wire ALT or original style? If it has a one wire ALT in it and the voltage regulator is still there, the ALT light will stay on.

 

hotrodredneck

New Member

Jul 28, 2004

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Newport News Va

Dec 6, 2006

#9

• Dec 6, 2006

• #9

302 coupe said:

yep, thats it. Might not be so easy to find a replacement in Germany though.

Click to expand...

Not too bad, I am Miltary and Autozone will ship to me for free, they have one for 13.99.

 

dennis112

15 Year Member

May 15, 2005

1,561

36

79

Amish Wonderland of Central PA.

Dec 7, 2006

#10

• Dec 7, 2006

• #10

hotrodredneck said:

Not too bad, I am Miltary and Autozone will ship to me for free, they have one for 13.99.

Click to expand...

There is an easy way to check if the regulator is working. Basically jump across 2 specific wires on at the regulator and start the car. If it charges, the regulator is good. If not, replace. I can get you the specific locations, if you need as I got a pre-made jumper set that does it.

I suggest paying a little more for an electronic type regulator, if the item mentioned has points. They are interchangeable and less faulty.

 

hotrodredneck

New Member

Jul 28, 2004

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Newport News Va

Dec 7, 2006

#11

• Dec 7, 2006

• #11

let me know what two wires....I dont know if it is bad though, the lights dont dim and it always cranks right over. Of course it does have a redtop in it

 

krash kendall

Active Member

Nov 19, 2004

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36

Aldergrove, B.C. Canada

Mar 15, 2007

#12

• Mar 15, 2007

• #12

Damn! Wouldn't you know it? Now I have the same the problem. Came on the other night when I was coming home from Taekwondo, then worked fine the next morning on the way to work - checked battery with volt meter to be sure I was getting 14.5-ish volts. Came back on that afternoon and hasn't turned off since - also not charging. I'll have to look at it next week when I get back in town.

 

krash kendall

Active Member

Nov 19, 2004

1,258

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36

Aldergrove, B.C. Canada

Mar 15, 2007

#13

• Mar 15, 2007

• #13

Well, I will be needing headlights tonight so I got a transistorized voltage reg off of my neighbour. Took two minutes to change - problem solved.