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Old 11-24-2012, 06:13 PM   #1
captbo
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Bronco Info: 78, xlt 351M ,1992 EB 5.0, 1995 xlt 5.8
did my elec ingnition box take a dump?

Today while finishing up the drivers door rehab and topping off fluids I found something that has me puzzled!,, on the drivers side inner fender is an Aluminum colored ( gray) box about 6"x6" and 2" tall looks like the back side may have been epoxy sealed and what I found was melted black crusty funk just near it,, The truck starts and runs fine, I did not want to unbolt it until I got a heads up from you all ! could this have been from a bad one the PO replaced? help a brother out please!!
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Old 11-24-2012, 06:38 PM   #2
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If the "snot/insulation" is going away, then replace it. When my '77 Ranchero's box started going out intermittently, my uncle {a machanic at Ford} said that it aint a bad idea to keep an extra one of these in the vehicle.
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Old 11-24-2012, 06:46 PM   #3
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Bronco Info: 1986 Bronco XLT 4x4 -AOD -Warn Hubs, NEW stock 302EFI (2008) All MSD ignition, 9mm FMSR wires
Pictures would make things a lot easier for everyone to diagnose.......
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Old 11-24-2012, 06:58 PM   #4
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Bronco Info: 78, xlt 351M ,1992 EB 5.0, 1995 xlt 5.8
Hang on!

here are two shots !
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Last edited by captbo; 11-24-2012 at 07:16 PM.
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Old 11-24-2012, 08:28 PM   #5
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Bronco Info: '91 RoadQueen 351w-2wd-ZF camtiming+4* 265/75-16E's dual Ranchos F&R, SuperCab bench seat EEC=F250
Unbolt it and take a look at the back side?
I moved mine out of the engine compartment sorta...

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Old 11-25-2012, 06:13 PM   #6
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What is this part called and are they all the same this is in a 78 with a 351m
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Old 11-25-2012, 09:23 PM   #7
Alvin in AZ
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Quote:
Originally Posted by captbo View Post
What is this part called and are they all the same this is in a 78 with a 351m
www.rockauto.com

I like to get Standard Motor Products, had real good luck with their stuff. :)
YMMV?

What color is the plastic wire holder underneath yours?
Is it the original?
Yellow or Blue?

The truck could have a problem that will also kill the new module so that's
why the instructions includes a detailed electrical testing procedure using a
volt/ohmmeter.

Don't skip any of those tests.

You might find the whole problem's the pickup coil inside the distributor. xD
So go through that {test procedure} first. ;)

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Old 11-26-2012, 11:47 AM   #8
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great info thanks for sharing your knowlege!
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Old 11-26-2012, 12:29 PM   #9
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I second the suggestion of keeping an extra one in the vehicle. I have had one go out with no warning leaving me stranded. Now i keep an extra behind the seat.
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Old 11-26-2012, 04:02 PM   #10
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Bronco Info: 1986 Bronco XLT 4x4 -AOD -Warn Hubs, NEW stock 302EFI (2008) All MSD ignition, 9mm FMSR wires
I can't quite make it out thelogo on the cover, is it an aftermarket ignition module or stock.....?


Good Luck ~
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Old 11-26-2012, 06:09 PM   #11
Alvin in AZ
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Quote:
Originally Posted by JKossarides View Post
I can't quite make it out thelogo on the cover, is it an aftermarket ignition module or stock.....?
Guess you're talking about mine since it's the only picture with a cover shot?
Mine's a Standard Motor Products.

The original Motorcraft went to acting up in'79. I'm thinking I might have
had something to do with killing it. I had a bad battery and was nursing it
along for a month or so because I didn't feel like I had the $25 for a new
one at the time. So instead bought a $109 ignition module instead! LOL :)

Either way the generation mine is ('75 F150) dies in a different way than
the newer gens do, mine acts like the ignition ballast resistor is open or
intermittently high resistant. Starts and runs fine while the starter is
engaged and dies or sorta half-assed runs or runs fine when the starter
circuit is allowed to re-open.

Seen several other dieing Dyna-Sparks of my generation with the same
symptoms over on FTE. :)

So the SMP Blue Streak I installed in '79 -hiccuped-one-time and I got on
Rockauto.com right away and bought a new one, keeping the old BS from
'79 as a spare.

My '75 F150 has never broke down and left me stranded -anywhere-ever-!
The IM didn't neither BTW! :)

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