Coolant Loss - Jeep J-10 Series 1982 Technical & Service Manual

Condition
COOLANT LOSS-
BOILOVER
COOLANT ENTRY
INTO CRANKCASE
OR CYUNDER(S)
COOLANT RECOVERY
SYSTEM
INOPERATIVE
COOLING SYSTEMS 1C-19
Service Diagnosis (Continued)
Possible Cause
(21) Faulty gauge.
(22) Loss of coolant flow caused by
leakage or foaming.
(23) Tempatrol fan inoperative.
Correction
(21) Repair or replace gauge.
(22) Repair leak, replace coolant.
(23) Perform Tempatrol fan test.
Repair as necessary.
Refer to Overheating Causes in addition to the following:
(1) Overfilled cooling system.
(2) Quick shutdown after hard (hot)
run.
(3) Air in system resulting in occasion
al "burping" of coolant.
(4) Insufficient antifreeze allowing
coolant boiling point to be too low.
(5) Antifreeze deteriorated because of
age or contamination.
(6) Leaks because of loose hose clamps,
loose nuts, bolts, drain plugs,
faulty hoses, or defective radiator.
(7) Faulty head gasket.
(8) Cracked head, manifold, or block.
(1) Faulty head gasket.
(2) Crack in head, manifold or block.
(1) Coolant level low.
(2) Leak in system.
(3) Pressure cap not tight or gasket
missing or leaking.
(1) Reduce coolant level to proper
specification.
(2) Allow engine to run at fast idle pri
or to shutdown.
(3) Purge system.
(4) Add antifreeze to raise boiling
point.
(5) Replace coolant.
(6) Pressure test system to locate leak
then repair as necessary.
(7) Replace head gasket.
(8) Replace as necessary.
(1) Replace head gasket.
(2) Replace as necessary.
(1) Replenish coolant to FULL
mark.
(2) Pressure test to isolate leak and
repair as necessary.
(3) Repair as necessary.
70170B