3rd Gen Engine and Drivetrain -> 2003-2007 5.9 liter Engine and drivetrain discussion only. PLEASE, NO HIGH PERFORMANCE DISCUSSION!

5.7L cumins engine idle rough

Thread Tools
 
Search this Thread
 
Old Mar 29, 2010 | 05:23 PM
  #1  
takkunram's Avatar
Thread Starter
Registered User
 
Joined: Mar 2010
Posts: 3
Likes: 0
Unhappy 5.7L cumins engine idle rough

Hello. I need help.
I have 03 2500 ram cumins engine.

its little rough engine run When its idle.
I dont get power as used to when I push gas and little blue smoke.

I change the Fuel filter and fuel pump.

sounds like one cylinder doesnt run well.

some one has these problem before? should I clean a injectors?
or anything else to check before injectors?

I also dont have engine error code.


Thank you for your time.
Reply
Old Mar 29, 2010 | 05:44 PM
  #2  
Colo~Dirtbikers's Avatar
Registered User
 
Joined: Jan 2008
Posts: 198
Likes: 2
From: Canon City, Co
Throw a couple quarts of type f tranny fluid in the tank. This will clean injectors well. Use dino tranny fluid, not synthetic.

Or, get a quart of lucas. Drain the filter housing. Fill the filter housing with lucas. Put filter back in or replace it.

Start truck and go put a good load on it.

I have 300k on my injectors and have gotten them this far by using both of these methods from time to time.

I did have to replace one injector recently because it had an open electrical circuit in the body.

But if you at least try this, you may find that this fixes it. Many times an injector gets replaced only becasue its dirty with carbon.

Carey
Reply
Old Mar 29, 2010 | 07:10 PM
  #3  
idlewildranch's Avatar
Registered User
 
Joined: Mar 2010
Posts: 54
Likes: 0
DO NOT USE TRANNY FLUID OF ANY KIND IN YOUR FUEL.USE 2 STROKE OIL. tranny oil will take the lubricity out of the fuel.use 1 to 2 quarts to 34 gallons,every time you fuel up,this will help keep everything in the fuel system lubed, the low sulfer diesel has a tendecy to ruin the fuel componants very rapidly.you could also get some centane boost w/injector cleaner,you may have a bit of crud in the injector nozzle
Reply
Old Mar 29, 2010 | 08:20 PM
  #4  
Colo~Dirtbikers's Avatar
Registered User
 
Joined: Jan 2008
Posts: 198
Likes: 2
From: Canon City, Co
Originally Posted by idlewildranch
DO NOT USE TRANNY FLUID OF ANY KIND IN YOUR FUEL.USE 2 STROKE OIL. tranny oil will take the lubricity out of the fuel.use 1 to 2 quarts to 34 gallons,every time you fuel up,this will help keep everything in the fuel system lubed, the low sulfer diesel has a tendecy to ruin the fuel componants very rapidly.you could also get some centane boost w/injector cleaner,you may have a bit of crud in the injector nozzle
Prolly done this 10 times.. Tranny fuild isnt going to hurt nothing if used every now and then.. Like once or twice a year.. lol

I use power service regularly. When I feel my truck running sluggish or have a rough idle, or white smoke at startup I use tranny fluid type f to clean out the deposits on my injectors.

Truckers have done this for years and still use this.

Type F fluid has a high amount of detergent and works real well to clean fuel systems and break up carbon deposits.

Pretty tough to argue with 300k on original injectors..
Reply
Old Mar 29, 2010 | 09:28 PM
  #5  
92'1stGen's Avatar
Registered User
 
Joined: Nov 2006
Posts: 795
Likes: 0
From: Southern Maryland
Originally Posted by Colo~Dirtbikers
Prolly done this 10 times.. Tranny fuild isnt going to hurt nothing if used every now and then.. Like once or twice a year.. lol

I use power service regularly. When I feel my truck running sluggish or have a rough idle, or white smoke at startup I use tranny fluid type f to clean out the deposits on my injectors.

Truckers have done this for years and still use this.

Type F fluid has a high amount of detergent and works real well to clean fuel systems and break up carbon deposits.

Pretty tough to argue with 300k on original injectors..
Transmission fluid will cause wear on your fuel system. The problem with using it is that trans fluid contains friction modifiers that are beneficial to an automatic transmission but detrimental to a fuel system. At the high cost and "particular-ness" of the common rail fuel system, it's the last thing you want to run through it. Plus, if your running power service regularly you shouldn't be having any of the problems you mention. Something else is your issue if your yearly having a rough idle or white smoke at start up...most likely an injector issue by the sound of it.

Also, something to think about, transmission fluid is almost always red, and so is most off road diesel. If the police dip you and find your fuel to be a gleaming red color, then your almost certainly going to get a nice fine for running off road, even if you really aren't.
Reply
Old Mar 29, 2010 | 10:57 PM
  #6  
Colo~Dirtbikers's Avatar
Registered User
 
Joined: Jan 2008
Posts: 198
Likes: 2
From: Canon City, Co
Originally Posted by 92'1stGen
Transmission fluid will cause wear on your fuel system. The problem with using it is that trans fluid contains friction modifiers that are beneficial to an automatic transmission but detrimental to a fuel system. At the high cost and "particular-ness" of the common rail fuel system, it's the last thing you want to run through it. Plus, if your running power service regularly you shouldn't be having any of the problems you mention. Something else is your issue if your yearly having a rough idle or white smoke at start up...most likely an injector issue by the sound of it.

Also, something to think about, transmission fluid is almost always red, and so is most off road diesel. If the police dip you and find your fuel to be a gleaming red color, then your almost certainly going to get a nice fine for running off road, even if you really aren't.
2 quarts of tranny fluid is not going to change 20-30 gals of fuel a color.. lol Try it.

After about 200k you will have large carbon deposits built up on the injector tip.

Type F will soften that carbon enough that your injecter spray pattern will return to efficiency.

A lil friction will clean things up too.. Thats a good thing to do at least once a year.

A diesel will smoke white on startup if you have a dirty tip causing one side of the cylinder to be overloaded with fuel from a poor spray pattern.

Dude hot rodders and mechanics have poured a quart down an engine for ever to soften the built up carbon deposits inside the combustion chamber.

Truckers do this too because it works. Plain and simple. Any diesel engine with some miles on it will get carbon deposits on the tips of the injectors from time to time. Tranny fluid cleans em up enough that they work well again.

The epa has made it to where our fuel additives are not near as good because they have to be dpf safe. Tranny fluid will clean a dpf, not hurt it.

This is well known.. I guess the newer generations just pay up everytime someone says they need an injector.. More times than not you only need em cleaned.

Carey
Reply
Old Mar 29, 2010 | 11:40 PM
  #7  
Nate-03 D's Avatar
Registered User
 
Joined: Aug 2005
Posts: 1,303
Likes: 0
From: Minnesota
Prove me wrong here. Show me proof that pouring tranny fluid in my fuel that runs through my CR engine is beneficial. Don't tell me that old truckers use this method now a days on these "finicky" engines. I 'd believe this if we were talking about older engines, but were not. This is like telling the man to go pour some bleach in his water and drink it, it'll clean you out.
Reply
Old Mar 30, 2010 | 12:02 AM
  #8  
got_soot's Avatar
Soot For Brains!
 
Joined: May 2006
Posts: 683
Likes: 1
From: ohio
to my understanding ATF contains a fiber content which after running many tanks is not good for the injectors. if your gonna throw anything in the tank use something that is designed for use in our trucks or 2 stroke oil.
Reply
Old Mar 30, 2010 | 01:42 AM
  #9  
Colo~Dirtbikers's Avatar
Registered User
 
Joined: Jan 2008
Posts: 198
Likes: 2
From: Canon City, Co
This is too clean your injectors only. Not to be used all the time. Truckers use this in new trucks too.

I have 300k on 5 out 6 of the original injectors. Not many get em that far. My truck runs as smooth as new.

we are trying to clean injectors here. 2 stroke oil wont do that. A high detergent oil will.

Ok use some high detergent 20 weight motor oil if it makes you feel better. It will accomplish the same thing.

detergent will break up built up carbon like nothing else.

Guys talk about using tranny fluid everyday on the cb while talking to eachother.

They are more finicky yes. Thats why we have problems. If the injector is clean it works well. If the tip is built up with carbon the pattern will be compromised. This will create white smoke and a rough idle at startup.

I burn 25,000 dollars of diesel every year. I burn 2-4 quarts of type f tranny fluid in that 25k of fuel.. Its not gonna hurt nothin. I have over 8000 hours on my cummins. Burns 2 quarts of oil in 15k miles.

Just try it. Will fix it more times than not.

90% of injector problems are from carbon build up on the tip.

Carey
Reply
Old Mar 30, 2010 | 09:59 AM
  #10  
mr-walleye's Avatar
Registered User
 
Joined: Nov 2008
Posts: 37
Likes: 0
From: thunder bay,ontario,canada
nice highjack guys..... My two cents is the fca on the injection pump. Mine like many others on this site, ran ruff at idle with a lope, stumbled on accelaration,and overall poor performance. Put in a new fca now purrrrfict idle, better milage, more responsive accelaration and now fun to drive again. Untill I changed it I was scheptical now that I did man what a difference.I recommend it.
Reply
Old Mar 30, 2010 | 11:42 AM
  #11  
Lary Ellis (Top)'s Avatar
Admin Team Leader
 
Joined: May 2002
Posts: 15,514
Likes: 207
Using tranny fluid in your fuel is an extremely bad idea. The composition of the stuff has changed dramatically in the last few years, it is NOT the same fluid old truckers use to run through their engines.

Unfortunately the old guys keep talking about the benefits not realizing they are spewing incorrect information. The friction modifiers and other chemicals in modern trans fluid does not burn like the old stuff, instead it damages your fuel system. DON"T DO IT!

Some people even think running a little gasoline through your tank is good to, but we all know just how wrong that advice is as well. So sad that so much bad info continues to be spewed about at the cost of guys that listen and don't know any better.
Reply
Old Mar 30, 2010 | 12:13 PM
  #12  
ssandlin's Avatar
Registered User
 
Joined: Apr 2006
Posts: 743
Likes: 1
From: Del Rio, TX
If one wants to clean his injectors, why not buy a product designed to do that? Just a thought......
Reply
Old Mar 30, 2010 | 02:31 PM
  #13  
takkunram's Avatar
Thread Starter
Registered User
 
Joined: Mar 2010
Posts: 3
Likes: 0
Thanks guys. but i dont know which one is correct information.
I just try a product for designed first.
Thanks
Reply
Old Mar 30, 2010 | 08:36 PM
  #14  
DaveB.inVa's Avatar
Registered User
 
Joined: Jan 2006
Posts: 776
Likes: 1
From: Nickelsville, Va
If you really want to clean everything and provide excellent lubricity... run biodiesel! It's even better than power service and most everything else for lubricity and being a solvent. Plus it is what it is... you don't have to add anything to it.

Run some B20 for a while and everything will be clean. Just be aware that in high concentrations that biodiesel will loosen the crud in the tank/lines and may clog a filter.

ATF is a bad idea especially on a HPCR diesel.
Reply
Old Mar 30, 2010 | 09:41 PM
  #15  
Colo~Dirtbikers's Avatar
Registered User
 
Joined: Jan 2008
Posts: 198
Likes: 2
From: Canon City, Co
I have tried bio diesel, and about every commercial injector cleaner out there. For me I will continue to use what I have found to work the best. Sorry if you dont like it guys. I know a ton of guys who pour all of there waste oils down the tanks. They all have 1/2 million and more miles on there trucks. How come they dont have any problems? Its funny how guys who runs there trucks 10-12 hours a day and just abuse the heck out of em, and they seem to run forever..

Thats why I try not to post much. Many of the things we do are just huge nono's with the public. There seems to be two worlds when it comes to pick up mini diesels.

Carey
Reply



All times are GMT -5. The time now is 09:12 PM.