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**dmjlambert** · 04-05-2021, 10:35 PM

Also, the wiring under the dash has the brown and purple wirings traveling in the same wrapped bunch. If there was some damage to the wire bundle, or some melted insulation at some point along the way between the key switch and the fuse panel and firewall terminal connector block, there could be a short. If in the 50 years since the truck was made somebody hacked into the wiring harness to connect some accessories, they may have damaged something, that is very common.

04-05-2021, 10:35 PM	#4
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,573	Re: Ignition Brown Wire is Engaging Starter - HELP! Also, the wiring under the dash has the brown and purple wirings traveling in the same wrapped bunch. If there was some damage to the wire bundle, or some melted insulation at some point along the way between the key switch and the fuse panel and firewall terminal connector block, there could be a short. If in the 50 years since the truck was made somebody hacked into the wiring harness to connect some accessories, they may have damaged something, that is very common.