Wires heating up! - Team Camaro Tech
Electrical & Wiring Troubleshooting electrical.

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post #1 of 3 (permalink) Old Aug 3rd, 00, 07:39 AM Thread Starter
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Join Date: Jun 2000
Location: St. Louis, MO
Posts: 54
Red face

The blower motor for my interior defroster/fan was rewired to a toggle switch over 16-18 gauge wire with a 20 amp inline fuse. When I turn the fan on after about 5-7 minutes the voltage supply wire starts to get a bit hot and I have to shut it down. Fan runs good with no bearing noises. I don't want to replace the wire with a bigger gauge if that isn't the problem but I have no idea what size wire I should have or what size fuse.
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post #2 of 3 (permalink) Old Aug 3rd, 00, 08:27 AM
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Join Date: Apr 1999
Location: La La Land, CA
Posts: 2,707

If I'm reading the diagram correctly, A/C cars have a purple 12ga and non A/C cars an orange 14ga positive feed.

I had a teacher who stated that engineering is being able to do for $3 what anyone can do for $5. GM would not run a heavier gauge than necessary. I try to copy, electrically, a lot of GM's practices.

If you are running 18ga that could be your problem.

You may want to try testing a heavier gauge wire from the battery to the switch.

Good luck

Click here to see see my car and hear 5-speeds. http://www.geocities.com/casanoc
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post #3 of 3 (permalink) Old Aug 3rd, 00, 08:44 AM Thread Starter
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Join Date: Jun 2000
Location: St. Louis, MO
Posts: 54

Thanks CarlC, thats exactly what I needed to know
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