Breakerless ignition module
New User
Joined: Dec 2001
Posts: 1
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From: summerville usa
Breakerless ignition module
How do you check a breakerless ignition module on a 1975 Ford pick-up?
A diagram would be great--web sites that have been visited to obtain
one are out of existence. My frustration level has reached the max! Thanks! :-(
A diagram would be great--web sites that have been visited to obtain
one are out of existence. My frustration level has reached the max! Thanks! :-(
New User
Joined: Mar 2001
Posts: 5
Likes: 0
Breakerless ignition module
Eric-
I have had 2 failures on my 78 F250, 460 engine. I found a good way to check the module is to measure the voltage at the cold side of the coil primary. The cold side is the one that the module switches. With the key on, the voltage should be around 0.6 volts. With the engine cranking, this voltage should show a pulsing on the meter. If the voltage stays at a steady 0.6 volts, the module is likely bad. Don't overlook the possibility of the impulse coil in then distributer being bad. Its resistance should be around 800 ohms. I got an Echlin module from NAPA that lasted 2 months past the warranty, which was 1 year. The one I am currently using is from Kragen and has a 5 year warranty, and cost about half the price of the Echlin. Good luck!
Bill
I have had 2 failures on my 78 F250, 460 engine. I found a good way to check the module is to measure the voltage at the cold side of the coil primary. The cold side is the one that the module switches. With the key on, the voltage should be around 0.6 volts. With the engine cranking, this voltage should show a pulsing on the meter. If the voltage stays at a steady 0.6 volts, the module is likely bad. Don't overlook the possibility of the impulse coil in then distributer being bad. Its resistance should be around 800 ohms. I got an Echlin module from NAPA that lasted 2 months past the warranty, which was 1 year. The one I am currently using is from Kragen and has a 5 year warranty, and cost about half the price of the Echlin. Good luck!
Bill
Fleet Owner
Joined: Jun 1999
Posts: 24,552
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From: Creedmoor, North Carolina
Breakerless ignition module
Eric, The best way is to buy and carry a spare, and when have problems plug the spare in. If the truck fires, test complete. Then you buy another spare.
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John
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John
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[link:www.ford-trucks.net/users/jowilker/NCFTE.html|NCFTO] North Carolina Ford Truck Owners Group
In the cool still quiet of night, you can hear chevies rusting away.
Junior User
Joined: Jun 2001
Posts: 71
Likes: 1
From: North Alabama
Breakerless ignition module
Eric, I used the electronic ignition troubleshooting instructions in the back of a 1980 Chilton passenger car manual that covered back to 1973. As I recall, the 1974 to 1976 ignition systems were called SSI (Solid State Ignition, with a different test procedure for each year). Ford changed to the Dura Spark system in 1977, with both a Dura Spark I & a Dura Spark II being a possibility, at least in the passenger car line.
John Boylan
John Boylan
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