Ignition problem
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More Turbo
Joined: Dec 2003
Posts: 510
Likes: 4
My 79 F-150 has melted the heatsink stuff out of the back of the box twicw inthe last 3 or 4 years.I changed coils and went over all connections the first time so I'm looking for suggestions.One thing that just came to mind though is thatI'm running non-resistor plugs cause I bought a box of them from a Ford dealer on a clean out day.
Last edited by Torque1st; Sep 2, 2005 at 05:35 AM. Reason: thread hijack
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Joined: Jan 2001
Posts: 57,025
Likes: 2,756
From: Virginia
Also, while the truck is running, check the voltage on the coil +, with the other meter lead to the engine block. If you have 12 volts on the coil, someone has done some re-wiring and have bypassed the resistor in the coil + wire. This would put an extra strain on the coil and the box if it was missing. You should have around 8 to 10 volts on the coil + with the engine running.
