Coolant Leak Testing
WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the pressure cap.
- Test the operation of the pressure cap. Refer to Pressure Cap Testing .
- Wash the pressure cap mating surface with water.
- Use the SA9141E
with J 42401
in order to apply pressure to the cooling system. See Special Tools .
- Wet the O-rings on the Surge Tank Pressure Test Adapter J42401-2 (insert) with water or clean coolant and insert into tank.
- Wet the rubber gasket of the cap adapter J42401-3 (cap) and install on surge tank.
- The cooling system should hold the rated pressure for at least 2 minutes.
Observe the gage for any pressure loss.
- Repair any leaks as required.
CAUTION:
Under pressure, the temperature of the solution in the radiator can be considerably higher, without boiling. Removing the radiator cap while the engine is hot (pressure is high), will cause the solution to boil instantaneously, with explosive force. The solution will spew out over the engine, fenders, and the person removing the cap. Serious bodily injury may result. Flammable antifreeze, such as alcohol, is not recommended for use at any time. Flammable antifreeze could cause a serious fire.
CAUTION:
In order to help avoid being burned, do not remove the radiator cap while the engine and the radiator are hot. Scalding fluid and steam can be blown out under pressure if the cap is removed too soon.
IMPORTANT:
Do not exceed the pressure cap rating.