Engine/Transmission (1994 - 1998) Fuel Shutoff Selonoid!

[edgeman]

I am currently deployed to Iraq and I have a question on my 97 ram..... I am coming home for a two week leave here in 6 days. I am flying into ohio to see my wife and my child..... but I am going to the U. P. of michigan for my bros graduation..... I plan on driving my truck when I am home. But my question is everytime i put a new selonoid in it, it goes up in smoke literaly and then once it is done the truck will shut off but when I turn the key on I have to manually lift the rod on the fuel shutoff... . the first time it did it the wires burnt up but the second time there were no wires burning just the selonoid... . any help would be greatly appreciated.

 

[Joe G.]

Replace the large relay on the firewall near the master cylinder. It is a normal 70 amp automotive relay so you don't have to pay the terrible price the dealer wants for it. The cheapest price is here: http://www.alliedelec.com/Search/Pr...N=R51-1D70-12&R=235-0510&sid=47422380327A617F



If you are also having starter problems then it might be starter contacts.

 

[edgeman]

thanks but no starter problems..... just keep blowing the fuel shut off selonoid. .

 

[Joe G.]

Then it's the relay.

 

[edgeman]

sweet I will relay that message on to my brother... . he is the one taking care of the truck while I am away

 

[bigdaddydieseldan]

Then it's the relay.

I agree with Joe G 100% sounds like the relay to me too Oo. Oo.

 

[edgeman]

I was wondering does anybody know how much that relay and solenoid cost together! or would it just be cheaper to go to the engine cut out switch cable... I might be able to get one being in the military and all... . we use the 8. 3L cummins C series engines... with the P7100 pump... . they use the cable.....

 

[The patriot]

I see the solenoids for around $180 on e-gay.

 

[edgeman]

that is expensive..... does anybody know if one will work off a p7100 off a tractor..... I tried that the last time and it worked once..... it was 75 dollars!

 

[biggy238]

Search on here, there is a complete parts list from international for a dt466 application with a p7100 and a cable.



If you are on to smokeing the solenoid, you need to make sure the right size fusible link was installed (not just a replacement wire) after the first one bit the dust. It will save you money in the long run.

 

[The patriot]

that is expensive..... does anybody know if one will work off a p7100 off a tractor..... I tried that the last time and it worked once..... it was 75 dollars!

I dunno. If you saved the old one from when you did that, just see if it matches up with the one on your 97.

Biggy238 is right. If you had smoke, you probibally have to look at a little more than the soleniod. Checking the wires to see if theyre crispy would be the first thing. Second will be the fuseable link.

I have some fuseable link wire in the shop. If you need some, PM me. I can drop some in an envelope to your bro if he cant find any locally.

I gotta see what spec it is. (might not be heavy enough, I dunno) I havent used it yet and havent looked at it in a while.

If the one for $75 works, let me know. mine is shot and I need one too. I cant find any at a discount either.

Eric

 

[edgeman]

Not a problem... . I can do that... .

 

[The patriot]

Edgeman, any word on that $75 solenoid?



I'm getting sick of popping the hood.

If it helps anyone else out there I found the OEM part is made by Woodward and the number is: PART # SA4981-12

I havent had any luck finding one CHEAP though.

 

[95REDRAM]

I put a cable on mine and am very happy. Don't plan to ever change it. Oo.

 

[cfarrar]

Here's a new fuel shut-off solenoid for sale on ebay. Starting bid is $100 with no bids so far. The seller is also selling a '94-'96 style fuel filter head. That auction ends in a few hours with no bids.



eBay Motors: 94-98 DODGE 5. 9 CUMMINS DIESEL FUEL SHUT OFF SOLENOID (item 290239983275 end time Jun-22-08 09:18:13 PDT)

 

[The patriot]

Yea, I've been watching some of that guys stuff.

Thanks.

 

[Shadrach]

There are many different solenoids that Cummins uses on the B and C engines, some especially for different applications, such as our Dodges. Some are 12 volt and some are 24 volt. Ford F650 and F750 use their own version as does Bluebird school buses. Depending on the style of fuel pump used some even mount horizontal. There is a real common one that is used on say Freghtliners ( upgrade kit Cummins p/n 4089574 ). The only difference between that one and our one is that good old Dodge ( Cummins p/n 4089577 ) uses a unique plug whereas the common one use a weatherpak plug. This upgrade kit has a bigger diameter solenoid and new heavier brackets. Too much cranking of the starter ( caused by poor starter contacts or not filling up your fuel filter before installing it ) without letting it cool down can over heat the solenoid. The relay is a lot cheaper than a solenoid kit . Always check it first. Once the new Cummins kit had been installed you can buy the solenoid by itself but it is almost the same price as the kit. The solenoids are manufactured by Syncro-Start for Cummins and have the p/n stamped on them. This Cummins bulletin shows the different styles of the solenoids and the p/n of the bare solenoid, although most will change up to different p/n now. https://quickserve.cummins.com/service/spt/1999/05/99t5-7a.htm Shadrach