TSB 11-001-08 done, P2262 is back

[Freebore]

I'm looking for clarification about next steps with the recurring P2262 code.



If TSB 11-001-08 is completed to address P2262 (drilled and flushed turbo) and the code returns, isn't the next step require following TSB 11-002-08 which is complete Turbo and EGR system replacement? I'm not completely sure of the verbage behind it.



Seems this second step some places are not following when the problem won't stand a chance of ever being corrected unless it is done.

 

[HBarlow]

How many miles was the truck driven following the turbo cleaning before the code returned?

 

[Freebore]

I probably drove a week or about 300 miles. Then they flashed from AX to AY, and that has been about 2 weeks. Then they installed a new EGR valve, but the rest of the EGR system has been on back order. I think the whole works (turbo & egr system) needs replacement now, but wishing I could get a complete understanding of what the TSB really says. Like the truck, but my patience is gone with this emissions crap.

 

[sag2]

It may or may not be the technicians fault. The 2262 is caused by the turbo nozzle sticking from soot build up in the turbo. When the ECM sees the current required to move the motor is getting too high, or it does not move when commanded it sets the code. Part of the turbo cleaning TSB(s) is to make sure the rest of the system is soot free so there is less chance of it occurring again. If the technician short cuts the procedure and leaves soot in the system it may happen again, and probably sooner.

That being said there is another potential sticking problem that the cleaning may not address. What is difficult is to determine if the problem is one that requires the turbo to be replaced, or one that was caused by not cleaning it properly. As a general rule you clean it once, and if it returns you replace it. But even if you replace it and don't clean the system it will probably fail again. Chrysler is paying actual time for the repairs, and it could take up to 8 hours to do it completely and properly. So it is not that Chrysler is trying to save any money at our expense.

 

[jimnance]

It may or may not be the technicians fault. The 2262 is caused by the turbo nozzle sticking from soot build up in the turbo. When the ECM sees the current required to move the motor is getting too high, or it does not move when commanded it sets the code. Part of the turbo cleaning TSB(s) is to make sure the rest of the system is soot free so there is less chance of it occurring again. If the technician short cuts the procedure and leaves soot in the system it may happen again, and probably sooner.

That being said there is another potential sticking problem that the cleaning may not address. What is difficult is to determine if the problem is one that requires the turbo to be replaced, or one that was caused by not cleaning it properly. As a general rule you clean it once, and if it returns you replace it. But even if you replace it and don't clean the system it will probably fail again. Chrysler is paying actual time for the repairs, and it could take up to 8 hours to do it completely and properly. So it is not that Chrysler is trying to save any money at our expense.

Is the soot accumulation entirely caused by the EGR system? If the EGR block was done would this likely prevent this issue?

 

[sag2]

Not entirely the result of the EGR, but it is a big contributer. After all the EGR sends exhaust back through the intake, and diesel exhaust has soot by it's very nature.