ignition problems
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Joined: Mar 2015
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ignition problems
I have a 65 f100 with a 360 FE out of a 71. I pulled it in the garage and changed the engine bay wiring harness and the ignition switch. It turns over fine but I'm getting no spark out of the coil. It has a pertronix 1 with the flamethrower coil. I'm getting power to the coil but no spark when I try to start. Pulled the distributor and checked the case ground strap, cleaned up the little bit of corosion bit dint make a difference.what am I missing here? Any help is appreciated.
Logistics Pro
Joined: May 2015
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From: Tri Cities, TN
It sounds like you aren't getting a full 12 volts to the coil when you are in the start position. First make sure your wires are on the solenoid correctly. Brown wire on the "I" terminal, Red/Blue on "S" terminal and Red/Green on the coil. If those wire are correct then your new switch may be bad or you may have a bad connection or bad wire under the dash. Disconnect the wire going to the coil and put a volt meter on it going to ground, with the switch in the run position you should have 6.6 volts or less providing the resistance wire is still in the circuit. Turn the switch to start and you should get battery voltage. Good luck.
Thread Starter
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New User
Joined: Mar 2015
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It sounds like you aren't getting a full 12 volts to the coil when you are in the start position. First make sure your wires are on the solenoid correctly. Brown wire on the "I" terminal, Red/Blue on "S" terminal and Red/Green on the coil. If those wire are correct then your new switch may be bad or you may have a bad connection or bad wire under the dash. Disconnect the wire going to the coil and put a volt meter on it going to ground, with the switch in the run position you should have 6.6 volts or less providing the resistance wire is still in the circuit. Turn the switch to start and you should get battery voltage. Good luck.
Senior User
Joined: Feb 2015
Posts: 112
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I have a 65 f100 with a 360 FE out of a 71. I pulled it in the garage and changed the engine bay wiring harness and the ignition switch. It turns over fine but I'm getting no spark out of the coil. It has a pertronix 1 with the flamethrower coil. I'm getting power to the coil but no spark when I try to start. Pulled the distributor and checked the case ground strap, cleaned up the little bit of corosion bit dint make a difference.what am I missing here? Any help is appreciated.
Forgot to mention that I have the matching coil.
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