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1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks Discuss the Early Eighties Bullnose Ford Truck

Spark problems

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Old Dec 8, 2004 | 12:08 PM
  #1  
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virgward
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From: Oconto,WI
Spark problems

What would be the most probable cause of lack of spark 5.0. Plugs look good ,cap and rotor look fair but I don't have any spark what so ever. Any ideas?
 
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Old Dec 8, 2004 | 12:32 PM
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RR4E
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From: Winnipeg, Manitoba
Could be a number of things. Check the wiring to your coil, and make sure it's getting power. Check resistance on your coil to cap wire as well. Your spark control module could also be the problem.
 
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Old Dec 8, 2004 | 07:11 PM
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Lee Lichterman
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From: Edwards Air Force Base
Most likely the TFI Module on your distributor. That little grey box causes tons of ignition problems.

Buy 2 and keep a spare, they are always going bad at the worse time. Doesn't hurt to buy the little special tool that goes in there to remove it either. I had to shave a socket the first time I did one before I found out they actually make a special tool that fits in there that you can stick a dogbone on and makes it much easier.

Lee
 

Last edited by Lee Lichterman; Dec 8, 2004 at 07:33 PM.
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