Warning: Never open a hot cooling system as it will be under
pressure. Opening the system while hot can cause hot coolant
to release and cause burns. Always let the cooling system cool
down before opening with caution.
Always follow all service procedures for your vehicle. Refer to
the service manual for specific details and specifications for
your vehicle.
To ensure accurate and consistent results, wet the rubber gas-
ket on the bottom of the tester and on the pressure caps being
tested.