Fusible link replacement alternative - Page 2 - Dodge Cummins Diesel Forum
89-93 Tech Articles Tech Articles for the 89-93 12V Dodge Cummins Diesel...NO ADVERTISING

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post #13 of 37 (permalink) Old 01-23-2017, 09:00 PM Thread Starter
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This write-up adds a lot of value to this forum. Thank you for taking the time to do this as it has helped me out and I'm sure will benefit many others in the future. Forum god, will you please make this a sticky?
You are welcome. Hopefully this will be a good long term solution for the electrical issues common on these trucks. Feel free to ask any questions, I will help any way I can.

I am going to add the part number for the glow plug relays; several have asked me where to get them:

They are available online from many sites, under part number 120-105711, just google search it; they are made by Westinghouse, White-Rodgers, and several other manufacturers. Make sure you use that part number, as it has an isolated ground circuit in it.

On a side note, I accidentally tested the PNDB the other day, I was checking the vacuum sensor to see if it worked, accidentally grounded the sensor power wire, and boom, blew the 40 amp midi instantly...engine shut off, dash went dead, good to know it all works.

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post #14 of 37 (permalink) Old 03-30-2017, 09:56 AM
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My truck is 93 but I can't seem to find the orange wire for the ecm/ac relay or the red wire for either that starter relay or ignition main feed.
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post #15 of 37 (permalink) Old 03-30-2017, 10:05 AM
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Book marking this page for the near future! Awesome job and nice details! Thanks! Best Regards, TK
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post #16 of 37 (permalink) Old 03-30-2017, 05:10 PM Thread Starter
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Originally Posted by J_johnson41 View Post
My truck is 93 but I can't seem to find the orange wire for the ecm/ac relay or the red wire for either that starter relay or ignition main feed.
You will see the orange and red wire coming directly out of each relay; you can follow them from there.

The red ignition feed wire will be in the original "broom" junction on the fender.

If you still cant find them send me some pics of your wiring setup and I will check it out.

2014 Ram 2500, 6.7, 6 Speed Manual
1993 Ram D250, 2WD Cummins 5-speed.
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post #17 of 37 (permalink) Old 03-30-2017, 05:55 PM
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Alright thank you I will take a look at it tomorrow evening and let you know what I come up with. Also I was wondering on the side closest to the battery I have two small red wires that were wired into one white fusible link and also a bigger red wire and black wire. The black is for the alternator and the red to the battery but what are the two small wires for?
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post #18 of 37 (permalink) Old 03-30-2017, 10:09 PM Thread Starter
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Originally Posted by J_johnson41 View Post
Alright thank you I will take a look at it tomorrow evening and let you know what I come up with. Also I was wondering on the side closest to the battery I have two small red wires that were wired into one white fusible link and also a bigger red wire and black wire. The black is for the alternator and the red to the battery but what are the two small wires for?
Send me some pictures of what you are dealing with, and I will have a look.

2014 Ram 2500, 6.7, 6 Speed Manual
1993 Ram D250, 2WD Cummins 5-speed.
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post #19 of 37 (permalink) Old 03-31-2017, 07:34 AM
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Alright I will take some tonight after work.
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post #20 of 37 (permalink) Old 03-31-2017, 07:05 PM
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Looks great. Excellent write up.
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post #21 of 37 (permalink) Old 04-01-2017, 10:27 PM
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I think I got it figured out tonight. Someone has been into the wiring on my truck before so some of the wire colors did not match what you had mentioned but I was able to trace them back and I believe I have everything where it should be. I fired the truck up and everything worked as it should and so far nothing has caught fire so I'm thinking I will be good. Thank you very much for your help and for this awesome write up. It's kind of expensive but will definitely be worth it in the long run
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post #22 of 37 (permalink) Old 04-01-2017, 10:49 PM Thread Starter
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Originally Posted by J_johnson41 View Post
I think I got it figured out tonight. Someone has been into the wiring on my truck before so some of the wire colors did not match what you had mentioned but I was able to trace them back and I believe I have everything where it should be. I fired the truck up and everything worked as it should and so far nothing has caught fire so I'm thinking I will be good. Thank you very much for your help and for this awesome write up. It's kind of expensive but will definitely be worth it in the long run
Not a problem, glad you figured it out.

You are right, there are cheaper ways to do it; done right, this will be the last time you'll ever have to deal with fusible link or power wiring problems. Do it once, do it right IMO.

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1993 Ram D250, 2WD Cummins 5-speed.
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post #23 of 37 (permalink) Old 07-09-2017, 12:33 AM
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Just discovered this thread.

Seems like a lot of great information, especially for newbie 1st Gen owners.

Sucks about the images.

Truckjerk,

Any chance you can fix the pics on this thread?
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post #24 of 37 (permalink) Old 07-09-2017, 12:54 AM Thread Starter
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Originally Posted by scout2000 View Post
Just discovered this thread.

Seems like a lot of great information, especially for newbie 1st Gen owners.

Sucks about the images.

Truckjerk,

Any chance you can fix the pics on this thread?
Pics fixed, thanks for posting here, I have been chasing threads fixing pics for a week since PB decided to charge an excessive amount of money to host pics. I have since changed photo hosting sites.

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