Its Kinda` Hard To Do A Good Job At Home. If You Want To Get Serious With This Drive Over To A Radiator Shop. They Can Do It For You.
For the 1999 Ford expedition it is recommended that you use the Ford Premium engine coolant which is green in color. You should not use the Ford extended life engine coolant which is orange in color.
On your 1999 Ford Expedition : The thread on cap on your engine coolant reservoir ( located at the front of the engine compartment , on the drivers side ) is the pressure cap / radiator cap
The radiator on a 1999 Mercury Cougar is flushed by draining the radiator, filling it with water, and adding a commercially available radiator flush. The engine is allowed to circulate for 10 minutes, drained, flushed with fresh water, and refilled with coolant.
a coolant flush, transmission flush, your driveline and a tire rotation
Coolant recovery tank
To actually "flush" the coolant in this vehicle you will need a flush machine. To do that we did at the dealership, drain the radiator (you need a 1/4 inch ratchet and 1 inch extension) then use a vacuum fill too to fill with new coolant.
According to the 1999 Ford Expedition Owner Guide : It came from the factory with a 50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford specification ESE-M97B44-A ) in the engine cooling system
why does the coolant only leak when engine is off on my 1999 grand am?
The radiator on a 1999 Pontiac Grand Prix is flushed by draining the coolant, filling the system with water, adding a liquid flush to the system, and running it for a few minutes. The system is then drained, flushed with fresh water, and refilled with coolant.
Green coolantGreen coolant
The flush valve for the radiator on a 1999 Buick Century is located on the bottom of the radiator near the vehicle's frame. When it is loosened, the coolant will slowly drain from the vehicle.
Any brand coolant will work.