Medium and Heavy Trucks
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Hi my name is***** will be glad to try to help. What fault codes are logged in the ECM memory?
thanks for the update. Check for air restrictions and for any leaks in the turbo intake piping and manifold gaskets, CAC cooler. Check the turbo for problems as well and the actuator for proper operation. Check for exhaust restrictions as well. If okay I recommend checking the ECM software calibration and having the ECM software updated as ECM calibration and software issues can cause these symptoms if no mechanical problems are found. Let me know
Thanks for the update. I agree not 100% but if you have insite try re-calibrating the turbo actuator and check it for proper operation. this is a variable turbo and could have an actuator problem or excessive carbon buildup in the turbo vanes. Check for that. Im logging out got the night but we can follow up as needed.
Max Boost Pressure 35 PSIMax Exhaust Gas Flow 3625 cfm (102 m3/min)Max Exhaust Temp 900-950 degrees FCombustion Air 1470 cfm (41 m3/min)Cooling System Air Flow 25000 cfm (707 m3/min)
WOT under a load such as puling a hill etc.
You still should be able to obtain full boost and even 25 or better
Even driving under a load such as pulling a hill? That is low
Sounds like the turbo vanes might be sticking or some actuator problems, possible faulty turbo. The VNT turbo is variable and if the vanes are carbined or soot plugged the turbo can not reach max boost.
Was it recalibrated with Insite software after installation? If not, it has to be on this engine.
A non VNT turbo? has there been any modifications on this such as EGR delete, etc?
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What is the complete model and serial number from the engine tag?
Check that the actuator lever on the turbo will move and is not sticking and there is no leaks in the actuator or problems. Click here for some FYI
Let me know
thanks for the update and glad you got this resolved. Pleasure to help