Question about Ford F-100

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I have a 1972 ford f100 pickup with the 302. The system will not charge. When I start it the Alt light comes on and stays on. I have tested every wire under the hood and replaced the Alt, Reg & condens, Bat, and Bat cables. Is there a resistor or something under the dash that ignites the circuit or mabie something else i'm missing ( ignition switch, guage cluster problem, ETC.) Any help would be appreciated.

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Posted on Jan 02, 2017

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SOURCE: 1972 Ford F100 Alternator/Voltage Regulator wiring

Here is what you need.


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Posted on Feb 09, 2009

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SOURCE: 1981 ford f100 2wd

This sounds like a telltale choke issue. You running carburated right?
If it is what i think it is you have a choke thermostat on the carb. If so check the votage on the wire and if you have power then the choke thermostat has to be replaced. you can do a manual set of the choke behind the carb just to see if this is the problem.

Posted on Sep 25, 2009

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SOURCE: 1972 ford 302 V8 What is the timing spec? The

10 degrees BTDC

Posted on Dec 28, 2009

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SOURCE: 1990 w250 diesel 4by4 not charging bat alt and reg

You probably fixed it by now, you have draw on the battery so go to the fuse box and start pulling and putting back in fuses, now IF you have a draw, you will know- when you pull it out and put it back in-- see it will arc, it is supposed to be turned off (ignition) when you do this obviously. Its a good place to start hunting for electrical issues. Check to see if you have a glow plug relay bad as well- I dunno get a nieghbor over with a few beers you guys can probably figure it out. Good luck!

Posted on Jul 20, 2010

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SOURCE: i have a 85 mustang gt and the battery will over

they sell stabalizers around 30.00 it should drop voltage to 14.5 can find on ebay

Posted on Nov 20, 2011

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1972 Ford F100 Alternator/Voltage Regulator wiring

Here is what you need.


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Feb 09, 2009 | Ford F-100 Cars & Trucks

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