[salstrip]

HI,
Having issues with turbos on several of our 25 dodge rams 07.5s .have been told there is a new turbo cleaning kit available from miller special tools which we have ordered part no 10142,10143 ,there is a new tsb concerning the repair procedure for the use of these parts can anyone assist with the tsb info?
Regards Conn

 

[Cummins 67]

I am having problems with mine and cannot seem to find anyone with info even with people on here saying they had theirs replaced with a differant version.:thud:

 

[bob4x4]

HI,
Having issues with turbos on several of our 25 dodge rams 07.5s .have been told there is a new turbo cleaning kit available from miller special tools which we have ordered part no 10142,10143 ,there is a new tsb concerning the repair procedure for the use of these parts can anyone assist with the tsb info?
Regards Conn

The tsb has not been released yet.......
What I heard the tools are just plugs to keep the cleaning solution in place to do it's work

 

[Goggleye]

I brought my truck in 4 times for a check engine light. Every instance the light appeared, i was accelerating onto the Interstate while the turbo is 'screaming'. It was making a noise louder and different than the overflow chatter. The dealer said that it is building up too much boost pressure. Their solution to the problem is for me to always ride with the Jake Brake on and to NOT let the engine idle for longer than 15 minutes at a time. I was told that riding with the Jake Brake on will help reduce the soot build up in the turbo. Does this make sense to anyone?

 

[Ramtech]

the bulletin on turbo cleaning is due to release on the 12th of May.

 

[Ramtech]

new ETA for the TSB is around mid June - sorry - I check every day. Went to school (Chrysler training) and heard the bad news. Hope they're off by a few weeks --- SORRY AGAIN

 

[bob4x4]

I brought my truck in 4 times for a check engine light. Every instance the light appeared, i was accelerating onto the Interstate while the turbo is 'screaming'. It was making a noise louder and different than the overflow chatter. The dealer said that it is building up too much boost pressure. Their solution to the problem is for me to always ride with the Jake Brake on and to NOT let the engine idle for longer than 15 minutes at a time. I was told that riding with the Jake Brake on will help reduce the soot build up in the turbo. Does this make sense to anyone?

The idea of using the e brake is to make the sliding nozzle work more.It has a sraper on it so when it slides it tends to stay a lil cleaner and the backpressure will keep things blown clean

 

[diesellady]

I brought my truck in 4 times for a check engine light. Every instance the light appeared, i was accelerating onto the Interstate while the turbo is 'screaming'. It was making a noise louder and different than the overflow chatter. The dealer said that it is building up too much boost pressure. Their solution to the problem is for me to always ride with the Jake Brake on and to NOT let the engine idle for longer than 15 minutes at a time. I was told that riding with the Jake Brake on will help reduce the soot build up in the turbo. Does this make sense to anyone?

All the variable geometry turbos will stick when they get a build up of soot. Ford has been having this problem from years. The E brake, (it is not a jake brake), is actually the computer telling the nozzle in the turbo to close, which restricts the flow of exhaust gasses. When it gets stuck from all the soot, it either overspools the turbo, or lags heavily during acceleration. Using the e brake all the time will help save your brakes and keep the soot from sticking the nozzle. :thumbsup

 

[Ramtech]

TSB has been released (17 pages long), schedule with your dealer so he can order all the parts. I ordered 30 cans of cleaner and 10 plugs. Hope this helps.

 

[Colorado Turbo Repair]

TSB has been released (17 pages long), schedule with your dealer so he can order all the parts. I ordered 30 cans of cleaner and 10 plugs. Hope this helps.

ALL holset VGT have this problem, and cleaning the turbo does not solve the problem. We're trying to figure it out, because you can't just blow a bunch of cleaner into your turbo and hope everything is OK. The VGT system won't have it-if it were that simple.

This TSB is a "quick fix," not a solution

 

[Colorado Turbo Repair]

I brought my truck in 4 times for a check engine light. Every instance the light appeared, i was accelerating onto the Interstate while the turbo is 'screaming'. It was making a noise louder and different than the overflow chatter. The dealer said that it is building up too much boost pressure. Their solution to the problem is for me to always ride with the Jake Brake on and to NOT let the engine idle for longer than 15 minutes at a time. I was told that riding with the Jake Brake on will help reduce the soot build up in the turbo. Does this make sense to anyone?

This is an older thread, I know, but I am curious to see if your turbo exploded. I see this exact same condition, surge/overspeed, on larger Holset variable vane turbos, and the turbo blows up nearly every time.

 

[bob4x4]

The entire system has to be working correctly,any one portion fails or goes out of spec you will get issues.If the cels were taken care of as soon as they show up there would be less of the high dollar problems.The current software is working good and passive regens happen easily to save fuel cost.The soot load now will drop lower (passive)than previously during a forced regen.

 

[Colorado Turbo Repair]

The entire system has to be working correctly,any one portion fails or goes out of spec you will get issues.If the cels were taken care of as soon as they show up there would be less of the high dollar problems.The current software is working good and passive regens happen easily to save fuel cost.The soot load now will drop lower (passive)than previously during a forced regen.

Well, that's the problem-these aren't throwing CEL on the bigger cummins engines.

Please explain what a passive regen is?

 

[bob4x4]

Pasive regen is when you are driving and the egts are up high enough to not need much if any additional fuel thrown at it to start burning off soot.Driving an 07 6.7 this week it was averaging well over 20 mpg at cruise (2wd)

 

[Colorado Turbo Repair]

Pasive regen is when you are driving and the egts are up high enough to not need much if any additional fuel thrown at it to start burning off soot.Driving an 07 6.7 this week it was averaging well over 20 mpg at cruise (2wd)

Good god-they make these things so complicated and then wonder why there are problems. I understand why, but the non variable vane trucks without all of the emission controls run forever with few problems. The 07-up models seem to run like hell when they run.


I've started another thread asking about the turbo cleaning TSB-I'm wondering if this TSB is a long term fix...


http://www.cumminsforum.com/forum/t...-tsb-long-term-effectiveness.html#post2234922

 

[bob4x4]

The turbo's are not a big problem here.The new software looks at the turbo a bit different than it used to.The 2262 dtc(turbo mechanical failure) is getting to be a thing of the past

 

[Colorado Turbo Repair]

The turbo's are not a big problem here.The new software looks at the turbo a bit different than it used to.The 2262 dtc(turbo mechanical failure) is getting to be a thing of the past

Interesting- you are saying that the issue was excessive soot, they found a way to keep that down, so the turbo will stay clean and work correctly?

 

[bob4x4]

Correct,they (holset) have also slightly revised the turbo design.The new design is not needed on the c/c that has a lower rated hp.

 

[bob4x4]

Out of the hundreds of 6.7 trucks I have worked on only 1 has required a turbo replacement and that was quite a few software revisions ago

 

[Colorado Turbo Repair]

Out of the hundreds of 6.7 trucks I have worked on only 1 has required a turbo replacement and that was quite a few software revisions ago

Well, here's the thing: the local dodge dealership has 6 old cores, and the parts counter guy has seen several go back to dodge. I don't think the rotating assy. has any problems, it's just the variable vane. Wonder if it's the atmospheric conditions-less air+more fuel=more soot?