SERIES 60 EGR TECHNICIAN'S GUIDE
Power Loss Under Heavy Pull
In extreme cold ambient conditions, the engine will operate in
Condensation Protection
.
During this mode of operation, the engine
boost
will be reduced and there is no reduction of
power. Operating in this mode is a normal operating condition and will not affect engine life or
performance.
Note:
Trucks operating with winter fronts will experience this condition less often.
DDC’s recommendations have not changed regarding winterfront usage. A service bulletin issued
years ago will be re issued to restate DDC’s position.
Perform the following steps for
Power Loss Under Heavy Pull
.
1. Check for diagnostic trouble codes.
[a]
If Fault Codes are logged, diagnose the logged codes first.
2. Visually inspect the air filter restrictions.
[a]
If the air filter is clogged or dirty, replace the air filter.
3. Visually inspect the air inlet hoses for soft or collapsed areas.
[a]
If the air inlet hoses are damaged, replace as necessary.
4. Visually inspect the air inlet for restrictions.
[a]
If the air inlet has restrictions, clean as necessary.
5. Visually inspect the entire length of the breather tube for kinks.
[a]
If the breather tube has kinks, repair as necessary.
6. Measure the fuel pressure under heavy loads.
[a]
If the fuel pressure was spiking or decreasing, perform step 7.
[b]
If the fuel pressure was not spiking or decreasing, testing is complete.
7. Remove the fuel pump.
[a]
If the fuel pump is damaged, replace the fuel pump.
[b]
If the fuel pump is not damaged, perform step 8.
8. Remove the fuel injectors and inspect for combustion passing the seat.
[a]
If seats are damaged, replace as necessary.
NOTE:
The injector may need to be replaced also.
[b]
If the seats are not damaged, testing is complete.
All information subject to change without notice.
(Rev. April 2004)
5-3
7SE60 0404
Copyright © 2004 DETROIT DIESEL CORPORATION
Содержание 60 EGR Series
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