5.0L (1979-1995) Mustang Technical discussions on 5.0 Liter Mustangs within. This does not include the 5.0 from the 2011 Mustang GT. That information is in the 2005-1011 section.

Melting Ignition Wires

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Old 01-22-2009, 09:22 PM
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Mulambo
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Default Melting Ignition Wires

Here's my issue. I have a 91' GT. Whenever I turn on the blower motor via vent, floor, normal a/c, etc, the yellow ignition wire, the one running for the ignition wiring harness that runs directly to the starter solenoid starts getting really hot and actually ended up melting a little bit the first time it happened. I am having no luck as to what is causing this to happen seeing as how this wire only runs to the starter solenoid.

Anyone have any suggestions or ran into this before??

Thanks for the help.
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Old 01-22-2009, 09:26 PM
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mjr46
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you may have a bad blower motor that has high resistence in the motor windings causing excessive current draw, hence the overheating wires, by now you may need to replace the wiring if it melted to much
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Old 03-13-2009, 03:55 PM
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Mulambo
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Thanks for the information. I will be swapping it out this weekend to see if that is the issue.
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Old 03-13-2009, 08:26 PM
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mjr46
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^^^^check all related wiring!! if the wiring is melted/overheated, it no longer is suitable to carry a current load that a motor draws and should be replaced also
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