There are two that might be of interest to you:

1. http://dodgeram.info/tsb/2005/14-004-05.htm
2. http://dodgeram.info/tsb/2006/14-003-06.htm

 

AKRAM,

I replaced the lift pump with the glacier unit which works real nice, then I put in a new FCA valve. I also upgraded to the new quad box that has the fuel mileage mode as well as a rail pressure gage.

Before the FCA was replaced my rail pressure jumped around a bit, more than 500psi. After replacing the FCA the fuel pressure was much more stable, but I'm still getting a vibration.

I started thinking about it and now I'm certain its an injector. The truck shakes like it has an injector miss and it does it in perfect sync with rpm which stays perfectly constant. I can also hear it in the exhaust.

Now the question is what do I do about it? I don't think taking it to the dealer will help since I've been running a box so perhaps I need to get my injectors looked at somewhere else. Can I pull them out and mail them somewhere? Is that hard to do? I'm pretty mechanical, I just don't know if it takes special tools or knowledge to remove them.

schu

 

Hi Schu. Three things you can try:

1. Try a good additive cleaner.
2. Take them out and send them to Don M for cleaning/rebuild.
3. Take them out and disassemble them/clean them yourself.

My injectors would carbon up and cause my truck to run like crap in short order, especially during the winter. Running a box that makes a lot of black smoke really amplifies the problem/frequency. Every couple of months (during the winter) I have to run Valvoline SynPower Diesel Injector Cleaner (Cummins endorsed) just to keep my injectors quiet and happy. It is expensive stuff, but it works. I get the 32 ounce bottles and run 16 ounces per tank. Sometimes more if I am running really bad. I run a couple of tanks through it with Synpower and try to work the truck (keep both EGTs and RPMs as high as you can) during that time so the carbon has a chance to burn off. This stuff works miracles. You can find it at most NAPA stores and Cummins Northwest in AK, or order it online just about anywhere. Look here: http://www.genosgarage.com/prodinfo.asp?number=3164982

Don @ F1 Diesel can completely dissemble your injectors, clean them and repair any damage that he finds. You have to take them out and mail them to him. He will do his thing and mail them back. I think he use to get like $120 or $150 per injector to do this. Not sure what he gets these days. If I was going to send them out for a cleaning, that would be choice #1. Definitely do not let any of the local dealers touch them. You have to work with one of F1's distributors to get your injectors in as they don’t usually do business directly with customers. I would recommend Rip Rook at Source Automotive. You can give Rip a call at the number on his web site and tell him you would like Don @ F1 to go over your injectors, clean, and rebuild as necessary. He can tell you the current price and set everything up. His web site is: http://www.sourceautomotive.biz/index.php

You can take them out and disassemble them and clean them yourself. Not too hard to do, but most would rather have someone else with more experience do it for them. Here are some instructions for disassembling the injectors. Read the whole thread as there is some good info, but the instructions start at post #20 on page 2 I believe: http://www.cumminsforum.com/forum/91...rared-gun.html

Removing and installing the injectors is fairly easy. Here are some really good instructions (open the .pdf file attachment to the first post): http://www.cumminsforum.com/forum/3r...procedure.html

I am a true believer in the Valvoline injector cleaner. When mixed strong and run hard, it has taken the nastiest injector crackle and made them run as smooth as silk. With that said, if you have a lot of miles on your injectors and have been running a pressure box for any length of time, it would be worth the money to yank them out and send them to F1 to have them cleaned/rebuilt. It will run like a new truck when you get them back. His turnaround time is usually just 1 to 2 days. Real quick. Pull them out on a weekend, ship them overnight on Monday, and you will be putting them back in on Wednesday or Thursday.

Good luck.