12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

Truck geling up

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Old 01-16-2009, 11:14 AM
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Default Truck geling up

I have a 97 3500. I put the power service anit gel in. I put the whole bottle. treats up to 100 gallons. it keeps geling up. is there a fuel heater? I havent had time to look its to dam cold right not. 2 degress this morning.
 
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Old 01-16-2009, 01:13 PM
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With that much treatment in the tank theres no way its gelling How do you know its gelling up? Whats the truck doing? If it is gelling did you change the fuel filter and put additive in the filter housing? The filter itself could be froze up with gunk not allowing enough flow... More info please
 
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Old 01-16-2009, 01:45 PM
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Originally Posted by big_dog37074
I have a 97 3500. I put the power service anit gel in. I put the whole bottle. treats up to 100 gallons. it keeps geling up. is there a fuel heater? I havent had time to look its to dam cold right not. 2 degress this morning.
Yeah, have you changed the fuel filter?. Get yourself a bottle of Diesel 911 (Red Bottle and pur some in the filter and some in the tank). You might also try putting an electric heating pad around the filter housing if you think its gelled up. Also, plug the truck in for 3 hours as well.

BTW, 2 degrees isnt even approaching cold. I run my 12V in -30+ temps for a good part of the winter.
 

Last edited by Dr. Evil; 01-17-2009 at 12:16 AM.
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Old 01-16-2009, 02:10 PM
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You do have a fuel heater. It's connected to the pre-filter. Do as Doc said but also clean out your prefilter. This will give you a chance to check out your fuel heater and make sure it's plugged in.

Fuel Pre-Filter Cleaning on Ram/Cummins - The connector show in the picture is for our fuel heater. I've heard of several people removing them because they leak instead of replacing them with a new part. Yours may be gone.

I don't remember what the heater is supposed to ohm out at though so I can't tell you how to test it. If the circuit is open then you obviously have a bad one.
 

Last edited by Johnny Cetane; 01-16-2009 at 02:13 PM.
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Old 01-16-2009, 05:36 PM
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Well I pulled the fuel filter off man was it nasty. there was water in it and dirt. withthe 911 and diesel fuel. it cranked up ran good for about a 1 min then died. wouldnt crank back. So I took the bleader screw out and tryed to manual put it. and little air then it quit nothing at all. So I thing the little pump went out. I ordered a new one today. so tomorrow we will see if it was the problem. I have had problems before when it gets around 20. when I go to start it I have to give it alittle fuel. but Iam going to clean the whole system tomorrow. yes I did put a new fuel filter. $30.00 dam dollars for a wix. thats high
 
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Old 01-17-2009, 12:09 AM
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if the filter had water and gunk in it, you may want to check it again cause you may have a whole tank of that crap.
 
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Old 01-17-2009, 12:18 AM
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Yes, thats a good point. I thend to think you got a tank with a lot of water. Diesel shouldnt gel at 2 degrees (unless its straight number 2 diesel).

I doubt the lift pump is the problem here.
 

Last edited by Dr. Evil; 01-17-2009 at 12:20 AM.
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Old 01-17-2009, 11:54 AM
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Well the truck wasnt gel up. Iam getting air in the system. I just put a new fuel pump on. when I go to blead it iam getting air. All my lines on my pump are tight. Has anyone had this problrem before. Iam bleading it on the bleader screw on top of the filter like I said air.
 
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Old 01-17-2009, 11:57 AM
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After you get it bled to the filter, crack injectors 1, 3 &5. Be very careful around spraying fuel as its about 15000 psi - dont get your hands anywhere near it.
 
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Old 01-17-2009, 11:58 AM
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You dont even need FUEL HEATER i have mine bypassed the return fuel heats your fuel
 


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