Toyota All Models Replacement Manual

INSTRUCTIONS
(continued)
WARNING: To prevent injuring yourself, allow the engine to
cool before starting work.
15
RECHECK COOLANT LEVEL – Shut the engine off, allow it to
cool and check the coolant level. Coolant level should also be
checked at the coolant reservoir (as per Owner's Manual). Fill
the radiator as required. Refer to the Owner's Manual for exact
fill level specifications.
NOTE: If vehicle overheats after thermostat installation, check
with dealer for advanced diagnosis.

TROUBLESHOOTING

CONDITION
Engine runs hot or overheats: Check the coolant level in the
radiator when the engine is cold.
Check the radiator hoses and
drain cock for leaks.
Check the radiator, radiator cap,
coolant reservoir, heater hoses
and all hose connections for
leaks. The radiator should also
be inspected to ensure it's free
and clear of leaves, debris, etc.
Remove the radiator cap when
the engine is cold; run the
engine for 5-10 minutes with
the radiator cap removed to
release air bubbles from the
cooling system (this procedure
may need to be repeated).
With the engine off and the
coolant still warm, touch the
upper and lower radiator
hoses. They should both be
warm. If one is cold, the
thermostat could be stuck in
the closed position, or, the
thermostat may have been
installed backwards.
If the problem persists, visit
your Toyota Dealer Service
Department for diagnosis and
repair. DO NOT DRIVE THE
VEHICLE if the engine overheats.
The "Check Engine" light Take the vehicle to your Toyota
comes on: Dealer Service Department for
diagnosis and repair.

REFERENCES

Please refer to the following sources for additional information:
• Your vehicle's Owner's Manual
• Your vehicle's Repair Manual
• Genuine Toyota Coolant Brochure
CAUTION
Moving parts like the fan blade and drive belts, as well as extreme
heat in the engine compartment or from the exhaust system can
result in serious injury.
• Approach with caution and care.
• Never take shortcuts when replacing parts.
ACTION
• Improper servicing may damage your Toyota and lead to
personal injury.
• Unless you have proper knowledge, equipment and tools, you
should have your Toyota Dealer Service Department perform
the repairs and maintenance.

IMPORTANT SAFETY NOTICE

Proper installation of Genuine Toyota replacement parts is essential
for the safe and reliable operation of your vehicle.
Following these instructions will:
• Help to assure your personal safety
• Assist you in the proper replacement of specific parts
There are many variations in the step-by-step procedures used in
installing various parts, and varying skill levels of individuals doing
the parts replacement. These instructions cannot anticipate all
circumstances or provide advice and caution on each. If you are
in doubt concerning your ability to replace the part or have any
questions, consult your local Toyota Dealer Service Department
and have the work performed by an experienced technician.
For further assistance, contact your Toyota dealer.
Visit our Web site at www.toyota.com
M/N 00405-HOWTO-THERM