Air Conditioning Vacuum Pump.
It's not easy
This should not be necessary on this vehicle.
You're simply going to have to have it removed and replace it. That nipple is at the lowest point in the system and there is no other way to drain it unless you have the system power flushed.
I need a cooling system diagram for a 1999 dodge intrepid 2.7
The coolant air bleed valve is located on the top of the thermostat bypass pipe/heater pipe assembly. Close the valve once a continuous stream of coolant is expelled from the valve.
Park your car on an inclined surface (15-20o). Start the car and idle it for 5-10 minutes. You can rev it couple times too.
Motor cooling system? The engine cooling system consits of the water pump, radiator, hoses, cooling fans, etc.Motor cooling system? The engine cooling system consits of the water pump, radiator, hoses, cooling fans, etc.
Not necessary on this vehicle.
Service the cooling system. Drain the coolant and replace the thermostat which is more than likely stuck open. Pour in a 50/50 mix of antifreeze and distilled water. Bleed all air from the system.
Thermostat, water pump, defective cooling fan, or cooling fan thermo switch. The coolant system needs to be bleed so that all the air is removed. There are two bleed off valves located that need to be losened until all the air is removed from system. The owner's manual shows where the bleeder valves are located.
They come from the factory with a 50 / 50 mix of antifreeze and distilled water in the engine cooling system
1990 was the first year of the Geo Tracker. 1999 was the first year of the Chevrolet Tracker. So the answer to your question is 1999.