Section 02 ENGINE
Subsection 09 (COOLING SYSTEM)
smr2009-024-004_a
1. Leak indicator hole
TROUBLESHOOTING
The following is provided to help in diagnosing the
probable source of troubles. It is a guideline and
it should not be assumed to list all possible prob-
lems.
Always check for fault codes. If a fault code is de-
tected, service the fault code first. Refer to
MON-
ITORING SYSTEM AND FAULT CODES
subsec-
tion.
ENGINE OVERHEATING
1. Low coolant level.
- Refill and check for leaks (coolant leaking out
of engine leak indicator hole, hoses or clamps
missing/defective, cylinder head gaskets leaks,
ride plate leaking, etc.). Repair or replace.
2. Air in cooling system
- Refill and bleed cooling system.
3. Thermostat defective (does not open when en-
gine gets hot)
- Replace thermostat housing.
4. Water pump failure
- Inspect and replace defective components.
5. Water temperature sensor defective
- Check or replace. Refer to ELECTRONIC FUEL
INJECTION.
6. Ride plate or hoses damaged
- Check or replace damaged components.
7. Exhaust system clogged
- Flush exhaust system.
8. Internal passage blocked in cooling system
- Inspect and clean.
PROCEDURES
PRESSURE CAP
Pressure Cap I
nspection
Using a pressure cap tester, check pressure cap
efficiency. If the efficiency is feeble, install a new
90 kPa (13 PSI) cap (do not exceed this pressure).
CLAMPS
Clamp Replace
ment
To cut or secure Oetiker clamps of cooling system
hoses, use the
OETIKER PLIERS (P/N 295 000 070).
1
F01B2KA
2
1. Cutting clamp
2. Securing
clamp
NOTE: Always check general condition of hoses
and clamp tightness.
120 smr2009-024
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