2.6
DD15 EGR COOLER CLEANING PROCEDURE TO REMOVE EXCESS FUEL FROM COOLER AFTER
ENGINE BRAKE SOLENOID FAILURE
2. Remove the mixer pipe (4) from the cold boost pipe (1). Refer to section .
3. Remove the exhaust gas crossover tube/lifting eye (2) and venturi (3).
4. Place a towel over the outlet of the EGR cooler and retain it with a zip tie.
To avoid injury from
fl
ying debris when using compressed
air, wear adequate eye protection (face shield or safety
goggles) and do not exceed 40 psi (276 kPa) air pressure.
5. Using a rubber tipped blow gun blow compressed shop air into the individual tubes in
the EGR cooler to clear any excess fuel, soot, and carbon.
6. After performing the cleaning procedure, refer to section to install the:
[a] mixer pipe.
[b] exhaust gas crossover tube/lifting eye (EPA07 engines) and exhaust gas crossover
tube (EPA10 engines).
[c] venturi.
7. If the cooler has an excessive amount of buildup that cannot be removed, replace the
EGR cooler. Refer to section .
All information subject to change without notice.
2-34
DDC-SVC-MAN-0081 2010
Copyright © 2010 DETROIT DIESEL CORPORATION
Summary of Contents for EPA07
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