Maintaining the proper coolant level in your 2004 Pontiac Montana van is a crucial part of protecting the engine components. The coolant regulates the engine temperature, preventing the components of your engine from heat damage. You should check the coolant levels at each oil change or if the engine operating temperature is running higher than normal. Add coolant to your engine when the level is below the full levels on the recovery tank. Pontiac recommends using DEX-COOL anti-freeze in your Montana's engine.
Allow the engine to cool completely if it has been running. The coolant level will not be accurate unless the engine is cool.
Raise the hood of your Montana van. Locate the coolant recovery tank on the driver's side of the engine compartment, between the air cleaner and the firewall.
Lift the cover off the recovery tank. Add a 50/50 mixture of clean water and anti-freeze to the recovery tank until the coolant level reaches the "FULL COLD" marker level on the tank. Insert a funnel into the fill area if needed to avoid spilling coolant on the engine.
Close the cover of the recovery tank by pushing it back onto the fill opening.
