alternator issues
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Junior User
Joined: Feb 2011
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alternator issues
my alternator on my 89 f150 with a 300 keeps melting the wires that lead over to the starter solinoid on the fender, im using a 12 gauge wire at the moment, should o go to a thicker wire? or find an old harness from a boneyard?
Fleet Owner
Joined: Oct 2005
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From: Kentucky
Your previous post ( https://www.ford-trucks.com/forums/1...or-issues.html )led me to believe you were not getting any alternator output?
That 12 gauge wire is only good for roughly 20 amps. Yes I know the factory has seriously under sized the wire but it will not hold up to a long term current draw. Your alternator is most likely a 60 or 75 amp model. If something is drawing a large amount of current that wimpy charge wire is going to melt.
I suggest you find out what is drawing so much current. Have you installed accessories such as extra lights, winch, amplifier, etc.? Once you have the current draw issue resolved you might consider a 3G alternator and larger charge wire upgrade. The 2G alternator connector is a documented fire hazard.
That 12 gauge wire is only good for roughly 20 amps. Yes I know the factory has seriously under sized the wire but it will not hold up to a long term current draw. Your alternator is most likely a 60 or 75 amp model. If something is drawing a large amount of current that wimpy charge wire is going to melt.
I suggest you find out what is drawing so much current. Have you installed accessories such as extra lights, winch, amplifier, etc.? Once you have the current draw issue resolved you might consider a 3G alternator and larger charge wire upgrade. The 2G alternator connector is a documented fire hazard.
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