Suzuki XL7 2007 Service Manual page 769

Draining and Filling Cooling System (LY7
Static Fill)
Draining Procedure
WARNING
!
In order to avoid personal injury, do not
remove the cap or open the cooling system
drains from a hot system. Allow the system
to cool first.
NOTE
A 7.6 liter (8 qt) coolant container will be
needed.
1. Place the coolant container under the radiator drain
cock.
2. Remove the surge tank cap from the surge tank and
the coolant will drain from the system.
Engine Cooling System:
3. If necessary drain the engine block.
4. Inspect the coolant.
5. Follow the appropriate procedure based on the
condition of the coolant.
– Normal in appearance—follow the filling
procedure.
– Discolored—follow the flush procedure. Refer to
"Coolant System Flushing".
Filling Procedure
CAUTION
!
All entrapped air must be purged from the
powertrain cooling system before the final
coolant level can be determined. Proper
coolant level is critical to avoid engine
damage.
NOTE
The vehicle must be level when filling the
cooling system.
1. Slowly add a mixture of 50/50 DEX-COOL antifreeze
and clean water to the coolant surge tank.
2. Start the engine and check for leaks.
3. Run the engine and cycle the vehicle from idle to
3,000 RPM in 30 second intervals until the engine
cooling fan comes ON, the engine cooling fan turns
ON at approximately 102°C (216°F). Repeat this
process twice before the engine is turned OFF.
4. Return the engine to idle, and idle for 30 seconds,
then turn the engine OFF.
5. Allow the vehicle to cool, before adding additional
coolant.
NOTE
The level in the surge tank will return into the
cold fill range once the vehicle cools.
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