Ignition problem
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Joined: Sep 2017
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Ignition problem
I just got a 1966 f250 custom cab 352 and have replaced battery, spqrk plugs, spark plug wires, distributor cap and rotor as well as the ignition switch and starter solenoid yet when i go to turn the key nothing comes on. Truck hasnt ran since 1983 but i can jump the solenoid and it will crank so its something in between and the truck also has solid state ignition so was wondering if anyone would know what it might be
Tuned
Joined: May 2008
Posts: 253
Likes: 48
From: Somerset, OH
I just got a 1966 f250 custom cab 352 and have replaced battery, spqrk plugs, spark plug wires, distributor cap and rotor as well as the ignition switch and starter solenoid yet when i go to turn the key nothing comes on. Truck hasnt ran since 1983 but i can jump the solenoid and it will crank so its something in between and the truck also has solid state ignition so was wondering if anyone would know what it might be
Fleet Mechanic
Joined: Sep 2016
Posts: 1,459
Likes: 70
From: Southern Maryland
First you need 2 tools:
1. A wiring diagram
2. A voltmeter (or multi-meter)
I don't have my wiring diagram in front of me so I can only give you a general approach.
Step 1: Verify you have 12v "hot at all times" coming to the ignition switch. (It sounds like this is your first problem).
Step 2: Verify that the ignition lead (iirc red w/ green stripe) that goes to the starter solenoid is getting 12 volts when the key is in start.
Since you can jump the solenoid you should be able to get it cranking from the key at this point. Since the main source of power doesn't appear to be there, you're not going to have any power to the coil until you fix problem 1.
1. A wiring diagram
2. A voltmeter (or multi-meter)
I don't have my wiring diagram in front of me so I can only give you a general approach.
Step 1: Verify you have 12v "hot at all times" coming to the ignition switch. (It sounds like this is your first problem).
Step 2: Verify that the ignition lead (iirc red w/ green stripe) that goes to the starter solenoid is getting 12 volts when the key is in start.
Since you can jump the solenoid you should be able to get it cranking from the key at this point. Since the main source of power doesn't appear to be there, you're not going to have any power to the coil until you fix problem 1.
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