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Nov 9, 2008 | 07:05 PM

mascher

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Ok I have a 1982 f150 that will not start it turns over but no spark is getting to the plugs.It has new solenoid,ignition module on the fenderwell,new coil.what does the computer under the seat control?M

Nov 9, 2008 | 08:15 PM

Franklin2

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From: Virginia

Not sure about something under the seat. If you have a vacuum line going to the distributor, then you do not have computer control.

Make sure you have 12 volts on the + of the ignition coil while it's cranking. Also make sure you have 12 volts on the red wire going to the ignition module while cranking.

Nov 10, 2008 | 06:27 AM

mascher

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It has a sensor that plugs into the block.we have power all the way to the coil ,but getting nothing to the plugs.My understanding is this is a computer,but will be honest I can'T find it in a parts check.E2UF-12A650-B2B. from what I can find this is either under the seat or adjacent to the parking brake.M

Nov 10, 2008 | 11:40 AM

Franklin2

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From: Virginia

Like I said in the first post, if you have a vacuum line going to the distributor, then you do not have computer control of the engine. If you find computer stuff here and there but do have a vacuum line to the dist, then you may have had it at one time, but someone may have swapped distributors to get rid of it.

Nov 12, 2008 | 08:05 PM

Mr. Fixit

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Franklin 2: I also have a no start F250. It's a 1976 with the 460 engine. Will I be able to test the same way as you recommended to mascher? Thanks

Nov 13, 2008 | 10:22 AM

Franklin2

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From: Virginia

Quote:

Originally Posted by Mr. Fixit

Franklin 2: I also have a no start F250. It's a 1976 with the 460 engine. Will I be able to test the same way as you recommended to mascher? Thanks

Yes. Check for power at the coil and the module. You can also put one lead of the tester on the engine block, and the other lead on the negative of the coil. Get someone to crank the engine, and the tester voltage should blink as the engine turns. This is the module turning the coil on and off to make a spark.

Nov 13, 2008 | 11:55 AM

Mr. Fixit

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From: Vancouver, Canada

Thank you Franklin2 - I hope to get over to our old truck over the next 2 weeks or so.
Cheers!

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Nov 17, 2008 | 12:23 AM

Mr. Fixit

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Mascher: got our '76 F250 with a 460 engine started today - here's what I did... it might work for you...
1 With ignition in the ON position, tested for 12v at the coil (red wire not the green one) and 'module' on the inner fender. Power OK to the coil but no power to the 'module' (I scraped a bit of insulation off the 2 wires going into the 'module' and tested the exposed copper wire). There were two clusters of wires going into the 'module' so I guessed the red/white pair would be the power.
2 Pulled the connector apart to reveal some kind of white greasy stuff covering the "prongs". One of the prongs gave 12 volts with the ignition key ON. Cleaned everything up carefully and sprayed on 'contact cleaner'. Cleaned again and twisted the prongs a little bit with needlenose. Reassembled and she started right up! Yahoo!