Electrical nightmare!?
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Electrical nightmare!?
OK, I desided to take the box off my 79 F15o this winter to clean up the rear of the frame. While I was at it I put in a reman dist. aftermarket coil (used), and a none electric choke carb. That said trying to get the truck ready for the road now an the rear lights are all sorts of messed up that I cant even begin to try an explain. I blew the aftermarket coil, but it was used so it could have been bad already. The preveious owner had canged motors from the 302 to 351M an did alot of work with black tape to make diferent things fit an work all over the truck, an also eliminated the side fuel tank an left just the rear. Now my new coil is heating up (motor not running) to hot to touch. One wire be hind the dash is getting hot (an a possible fire hazzard) conected to the ignition switch. I have the basic knlowledge of electrical and am thinking of ripping it all out of the truck an trying to fix it the right way. What do you all think?
I dont realy wanna drive the thing an have it go up in a big electrical ball of fire at 65mph
I dont realy wanna drive the thing an have it go up in a big electrical ball of fire at 65mph
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Okay, The Ford/DS II coil operates on 6-8 volts not 12v,,(12v only at start up)
You need to check this voltage with the key in RUN
There is a red/green wire coming out of the ignition switch , that turns into a pink resistance wire which MUST be the correct length (IIRC about 42") to only allow 6-8 volts to the coil, resistance wire gets hot because that it the natural result of resistance
Here is the harness that comes from the ignition switch out to the under hood area.
You need to check this voltage with the key in RUN
There is a red/green wire coming out of the ignition switch , that turns into a pink resistance wire which MUST be the correct length (IIRC about 42") to only allow 6-8 volts to the coil, resistance wire gets hot because that it the natural result of resistance
Here is the harness that comes from the ignition switch out to the under hood area.
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Yes that area is wrapped up about 9-10" from the grommet and it runs inside the harness wrapping across the dash to about the heater switch then out the firewall to the coil.
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Brad,you need to check for NON-Ford related splices in that harness... if there is more than 9.0 volts at the coil.. you will eventually burn it up from too much voltage
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Brad,you need to check for NON-Ford related splices in that harness... if there is more than 9.0 volts at the coil.. you will eventually burn it up from too much voltage
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Ya, I was afraid of that. I might try pulling it all apart for probley a few simple stupid lil splices. Thanks for the help any more advice is still welcome cause I have a feeling this might get ugly.
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