removal and installation procedures, or take the ve-
hicle to an authorized Freightliner dealer.
09–02 Charge Air Cooler (CAC)
Inspection and Cleaning
Good airflow through the CAC core is essential for
proper engine cooling. The cores allow air passage,
but form a barrier that tends to collect insects and
airborne debris.
Inspect the CAC hoses for chafing and cracks that
will allow an air leak. Replace the hoses as needed.
Inspect the CAC for clogging or damage and clean
and/or repair it if necessary. Soak the CAC with a
non-corrosive degreaser such as Simple Green. Let
the unit sit for several minutes to work through the
CAC. Using low water pressure directed from the fan
side of the radiator core, rinse the CAC; be careful
not to damage or bend the fins. Depending on the
condition of the CAC, this process may have to be
performed several times.
PUSH TO RESET
H 0 VACUUM
2
25
20
15
10
7
IN
H 0 VACUUM
2
f090176
05/22/97
Fig. 2, Air Restriction Indicator
Air Intake09
Recreational Vehicle Chassis Maintenance Manual, June 201509/2
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