TROUBLESHOOTING PROCEDURES (NON-ERROR CODE) - CONTINUED
Table 1. Engine Troubleshooting Procedures (Non-Error Code) - Continued.
TEST OR INSPECTION
14.Engine Overheats - Continued.
7. Remove engine cover to check a. With the engine cold, connect
a 3/8 in. (10 mm) hose to the
barbed bleeder valve on the
metal line coming from top of
hose to radiator thermostat
b. Open the coolant expansion
tank and place the other end of
the hose in the top of the tank
and hold. Open the bleeder
c. Start the engine and observe
the coolant flow from the hose.
Coolant flow should not
exceed 4 oz (0.12 L) per
d. Run the engine until it reaches
operating temperature. The
coolant flow should increase
when the thermostat opens.
e. Replace the thermostat if the
coolant does not flow at
operating temperature or flow
exceeds 4 oz (0.12 L) per
minute with the engine cold.
8. Check water pump operation a. Inspect water pump for
by observing coolant flow in
leakage at weep hole. Unplug
the coolant expansion tank
the weep hole if found plugged
while the engine is running.
b. If no flow is observed in the
coolant expansion tank or the
pump is leaking, replace water
pump (WP 0068 00).
15. Engine Oil Pressure - Low.
1. Check engine oil level.
Verify engine oil is not low or
2. Check engine for external oil a. Tighten any leaking lines or
b. Replace any damaged
leaking lines or fittings.