92 Heavy-Duty Service Schedule for VHD-Series
Engine Compartment
72 Visually inspect the component and all
fluid pipes, hoses, seals, gaskets and
connection points on engine, transmis-
sion and rear axle(s) for exterior signs
of leakage.
73 Inspect all hoses for cracking, cuts,
tightness, routing, chafing and evi-
dence of leaks. Inspect steel-braided
lines for wear and rust. Inspect clamps
for tightness and insulation.
74 Check radiator package mounts and
shroud molding. Clean front of radia-
tor if necessary. (See page 127.)
75 Inspect all drive belts on the engine
for cuts, wear, weathering, proper ten-
sion and alignment. Check the
function of the belt tensioner or mea-
sure the belt tension. (See page 120.)
76 Test coolant. Adjust additives as nec-
essary, change filter if necessary. If
equipped with long life coolant, do not
add additives. (See page 45.)
77 Change primary (see page 129) and
secondary (see page 131) fuel filters as
recommended.
78 Check clutch fluid level.
79 Check windshield washer fluid.
80 Check engine air filter gauge. Change
filter if necessary. (See page 119.)
81 Check around turbo for signs of ex-
haust or oil leakage. Check bolts for
looseness.
82 Check front engine mounts for wear or
cracks.
83 Check A/C compressor mounts for se-
cureness and cracks.
84 Check A/C receiver/dryer for signs of
moisture in the system. Check the A/C
diagnostic module codes.
85 Check air compressor mounts for se-
cureness and cracks.
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