COOLING(H4DO) > Radiator Cap
INSPECTION
1. Check that the radiator cap does not have deformation, cracks or damage.
2. Attach the radiator cap tester to radiator cap.

3. Increase pressure until the radiator cap tester gauge needle stops. Radiator cap is functioning properly if it holds the service limit pressure for 5 — 6 seconds. Replace the radiator cap if its valve opens at less than the service limit.
CAUTION:
Be sure to remove foreign matter and rust from the cap in advance. Otherwise, results of pressure test will be incorrect.
Standard:
93 — 123 kPa (0.95 — 1.25 kg/cm2, 14 — 18 psi)
Service limit:
83 kPa (0.85 kg/cm2, 12 psi)
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Maintenance schedule
U.S. models
The scheduled maintenance items required
to be serviced at regular intervals
are shown in the "Warranty and Maintenance
Booklet". For details, read the
separate "Warranty and Maintenance
Booklet".
Canada models
The scheduled maintenance items required
to be serviced at regular i ...
During driving
General precautions:
Drive carefully. Do not take unnecessary
risks by driving in dangerous areas or
over rough terrain.
Slow down and employ extra caution at
all times. When driving off-road, you will
not have the benefit of marked traffic
lanes, banked curves, traffic signs and
t ...