Tribeca F6-3.6L (2008)
A used toothbrush which has been cleaned works great.
Manually open the negative pressure valve. Using clean water and a brush, thoroughly clean the valve (inner and outer surface) and the valve seal
surface.
Check the radiator cap valve opening pressure using a radiator cap tester to insure the cap is within specification (refer to the applicable Subaru
Service Manual).
Note:
If the cap is out of specification replace it.
2.
Coolant Reservoir Tank Cleaning
Remove the reservoir tank (refer to the applicable Subaru Service Manual).
Using clean water, thoroughly clean the inside of the reservoir tank.
Reinstall reservoir tank. Fill with coolant to the Full mark.
Note:
Be sure to use genuine Subaru Super Coolant or Subaru Long Life Coolant, depending upon what type of coolant is currently in the system.
3.
Coolant Reservoir Tank Hose Modification
