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2014 freightliner m2102 with Cummins 6.7. Truck has had

Customer Question
issues with the dpf diff...
2014 freightliner m2102 with Cummins 6.7. Truck has had issues with the dpf diff pressure throwing codes 2639. In addition truck has had issues with turbo which was apparently interfering with normal aft regeneration -the turbo issues include being clogged with soot possibly causing the 1898 and 2387 and 3613. After recent turbo repair the code for 2387 was the only one to return active. Trying to determine diagnostic direction. During regen analysis exhaust gas pressure under 95 inhg and doc intake temperature stays under 700 f - is this within spec? Goal is to return truck to service without interruption from dpf or turbo malfunctions. Feel free to request further information thanks.
Submitted: 2 years ago.Category: Medium and Heavy Trucks
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Answered in 6 hours by:
7/20/2020
Technician: cumminsdr, Mechanic replied 2 years ago
cumminsdr
cumminsdr, Mechanic
Category: Medium and Heavy Trucks
Satisfied Customers: 4,475
Experience: All types of Cummins applications
Verified

Hello And welcome to Just Answer. The turbo cannot be repaired or cleaned it must be replaced. 2387 is for the turbo sector gear or actuator getting binded or stuck . Here are the proper valves for a regen.

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