88—COOLING SYSTEM
CHRYSLER SERVICE MANUAL
SERVICE DIAGNOSIS
11.
POOR CIRCULATION
a. Check for low coolant level and refill to
inches below filler neck.
b.
Inspect and replace hoses if collapsed.
c. Check for plugged radiator or cylinder
block and reverse flush as necessary.
d. Check for loose water pump impeller and
repair as necessary.
e. Check for loose or defective fan belt,
tighten or replace as necessary.
12.
OVERHEATING
a. Refer to Poor Circulation listed in Para-
graph 11.
b.
Check for plugged air passages of radia-
tor coil and clean passages by applying air
pressure on reverse side of radiator case.
c. Check for sticking thermostat and replace
as necessary.
d. Check for excessive sludge in the crank-
case.
Drain and flush crankcase as necessary.
In severe cases, remove oil pan and clean in-
side of block by hand.
13.
OVERCOOLING
a. Check temperature gauges and replace as
necessary.
b.
Check operation of thermostat (could be
sticking) in the closed position.
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