Group 25
Troubleshooting
Removal
1
Set the parking brake. Take the mea-
surement instrument and temperature
sensor electrical cables out of the cab.
2
Remove the cable ties and the electri-
cal sensor cables.
3
Disconnect the pipe from the air com-
pressor and remove the intake pipe
between the air cleaner and tur-
bocharger.
4
Remove the 4 mounting bolts and lift
away the air filter housing.
5
Disconnect the oil supply line to the air
compressor at the oil filter housing
and remove the line clamp.
Note: Cover the fitting and the end of
the line to keep out any debris.
6
Remove the 2 bolts attaching the
lower charge air cooler pipe to the
turbo and the bolt supporting the lower
end of the pipe.
7
Pry the charge air cooler pipe away
from the turbo and remove the end
adapter for more clearance.
8
Remove the shutter housing turbo
clamp. Move the shutter housing away
from the turbo and let it rest on the
frame.
9
Blow all debris away from the area
where the turbocharger oil supply line
enters the oil filter base. Remove the 2
bolts fastening the supply line to the
turbocharger and remove the line.
Note: Cover the open hole in the oil
filter base to prevent debris from
entering.
CAUTION
In order to prevent personal injury, always wear safety
glasses when working with compressed air.
10
Remove the 2 bolts fastening the oil
drain back tube to the turbo.
11
Remove the 4 bolts mounting the
turbo to the exhaust manifold and lift
off the turbo.
12
Remove the exhaust manifold mount-
ing bolts and lift the manifold away
from the engine.
13
Remove all of the temperature sen-
sors.
14
T2007717
Clean the cylinder head and exhaust
manifold contact surfaces.
Blow clean with compressed air.
44