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78 Dodge truck ignition module problem #2697589
09/14/19 07:58 PM
09/14/19 07:58 PM
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Pittsburgh, PA
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wayfarer1 Offline OP
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Found an issue with my dad's 78 Lil red express today. What could have caused it to melt?

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Re: 78 Dodge truck ignition module problem [Re: wayfarer1] #2697597
09/14/19 08:27 PM
09/14/19 08:27 PM
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Some just do that. Guess the potting material gives up.
Had an MP orange box do that once, maybe 20 years ago.
Get a parts-store replacement and odds are good it'll start & run just fine.

Re: 78 Dodge truck ignition module problem [Re: topside] #2697605
09/14/19 08:56 PM
09/14/19 08:56 PM
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wayfarer1 Offline OP
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Thanks. We are going to get a new module and see what happens. The voltage regulator was replaced 8 years ago and it did the same thing. It was original to the truck as well.


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Re: 78 Dodge truck ignition module problem [Re: wayfarer1] #2697701
09/15/19 10:08 AM
09/15/19 10:08 AM
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RapidRobert Offline
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& confirm that it is grounded well


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Re: 78 Dodge truck ignition module problem [Re: RapidRobert] #2697719
09/15/19 11:09 AM
09/15/19 11:09 AM
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wayfarer1 Offline OP
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Good point. We will check the ground as well. I can't seem to find the exact module for the truck. All I can find is the older style.


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Re: 78 Dodge truck ignition module problem [Re: wayfarer1] #2697723
09/15/19 11:13 AM
09/15/19 11:13 AM
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Lincoln Nebraska
RapidRobert Offline
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Do you have a yard close by?


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Re: 78 Dodge truck ignition module problem [Re: wayfarer1] #2697725
09/15/19 11:17 AM
09/15/19 11:17 AM
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wayfarer1 Offline OP
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Does anyone know where to get the newer style ignition module?


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Re: 78 Dodge truck ignition module problem [Re: wayfarer1] #2697727
09/15/19 11:18 AM
09/15/19 11:18 AM
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wayfarer1 Offline OP
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Yes, several.


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Re: 78 Dodge truck ignition module problem [Re: RapidRobert] #2697728
09/15/19 11:21 AM
09/15/19 11:21 AM
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McGregor,Iowa 52157
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I have some spares in my garage and the goop melted out all on its own, I think they just give up after a while and have had it run out whilst in use which still work fine but could be overheating too and a sign there could be a problem

Re: 78 Dodge truck ignition module problem [Re: 500ciDuster] #2697765
09/15/19 01:40 PM
09/15/19 01:40 PM
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Y3 70 BEE Offline
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That is not the ECU in your pic it is the EGR module.

Re: 78 Dodge truck ignition module problem [Re: Y3 70 BEE] #2697784
09/15/19 03:10 PM
09/15/19 03:10 PM
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Originally Posted by Y3 70 BEE
That is not the ECU in your pic it is the EGR module.


Good eye, for the record the ignition control module has a 5 pin connector that looks sort of like a pentastar.

[Linked Image]

As for finding the EGR module, good luck. If you can find a PN on it you might be able to google that.

Re: 78 Dodge truck ignition module problem [Re: Sniper] #2697803
09/15/19 04:13 PM
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wayfarer1 Offline OP
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What do you mean by EGR module? If it is something to do with emissions, then that is impossible as the truck is a 78 Lil Red Express and has absolutely no emissions on it. The module you showed is nowhere on his truck and never had been.


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Re: 78 Dodge truck ignition module problem [Re: wayfarer1] #2697810
09/15/19 04:37 PM
09/15/19 04:37 PM
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I found an EGR module on eBay and it is orange and the part number doesn't match our part.


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Re: 78 Dodge truck ignition module problem [Re: wayfarer1] #2697815
09/15/19 05:01 PM
09/15/19 05:01 PM
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Ok I am wrong. I found the ignition module under the ballast resistor and it is new. I admit when I am wrong, sorry for the confusion. I still don't know why this truck would have an EGR module on it.


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Re: 78 Dodge truck ignition module problem [Re: wayfarer1] #2697829
09/15/19 06:36 PM
09/15/19 06:36 PM
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there are multiple versions out there. Not all of them are orange, nor do they all have the same PN.

Here's a partial listing of some.

Re: 78 Dodge truck ignition module problem [Re: Sniper] #2697836
09/15/19 06:58 PM
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Thanks for the info. He has the part number we need but I am not paying $55.00 for a used, untested electrical part.


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Re: 78 Dodge truck ignition module problem [Re: wayfarer1] #2697855
09/15/19 08:01 PM
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I'll be honest, I would just clean it up and let it set there as a cosmetic thing and not worry about it working.







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