Question about 1994 Chevrolet K1500

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93 model chevy 1500 5.0L 4x2 eating alternators. The alternator is overcharging. Someone in the past has done away with the fusible link from the alt. to the positive battery cable end and put in a circuit breaker. The circuit breaker is 50 amp and will only stay engaged for about 5-6 seconds and then trips. If you jump the breaker, things get hot pretty quick. Have tried another battery. Have found no wiring shorted anywhere.

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I agree its like 10lbs of ina 5 lb bag to light of gauge wire cuases a load of resitance there fore the hot wire

Posted on Aug 24, 2010

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If the wires are overheating and someone put a rather large 50 amp breaker in the line, there might be wiring that is too thin between the alternator and the positive battery terminal.

I would probably replace the wiring with the proper gauge between these two entities.

When the wires get hot, it usually means they are not of the proper thickness or gauge all the way from point A to point B on a DC circuit.

It's like running too thin of an extension wire in an AC circuit.

Posted on Jul 10, 2010

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You may find that you have now have a spare alternator (your orginal that was ok) OR You can always sell it on ebay or craigslist.

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Double check your fusible links at the starter solonoid. If one of them is burned, the charging system will not work. I'm assuming the control box you're referring to is the voltage regulator. Trace the wiring between the regulator and the alternator as well. I've had to run new wiring between the two before especially on the early iron. I have a 68 Mustang myself and had the same issue before and decided to use a Chevy 1 wire alternator instead. Definitely a much more simple set up being that the regulator is built in. It looks stock and I was able to clean up excess wiring in the engine bay for a cleaner look. Let me know if you'd like step by step installation of the Chevy alternator. It's very simple. My email address is I've had problems in the past receiving emails so I may need yours so I can get you the information. Try this address as well I'm really big into the early Mustangs. Mine runs a 331 stroker with a 4400 converter/C-4 reverse pattern trans. with an 8in. rear, 4.11 gears. Goes 11.81 @ 114 on pump gas and I drive it all over the place. Never gets over 170 degrees on a really hot day either.

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