How do you Bleed the coolant system on a 2002 Chevrolet Impala?
There is a bleed screw on the thermostat housing. Remove the screw with the engine loose. Ounc you have pure coolant and no air you can close off the bleed screw.
How do you bleed the air out of the system after you change the thermostat on a 2004 Chevrolet Impala?
There is a small brass valve on the top of the thermostat housing where it attaches to the top radiator hose. Loosen it and then fill the radiator until coolant comes out of the valve and then quickly close it. This is only for an impala with the 3.8 liter engine though I believe there are two valves on the 3.4.
As you did not include engine or Year info I will give a general answer. Look on the top of the engine, most GM products with a bleed system have a small brass pipe thread plug in the top of a black or aluminum casting. This is the bleed point, loosen the plug or valve and add coolant to the system until it flows from the bleed, tighten up the bleed. Done. Repeat if needed.
To bleed the coolant in a 1995 Dodge intrepid locate the drain plug on the underside of the radiator, un plug it and pour new coolant in the system. Close the plug and while the engine is running find the coolant pressure valve and loosen it to relieve pressure. When bubbles stop forming there is no longer air in the system.
There is no need to manually bleed the coolant system on a Northstar, the system is self bleeding. The small hose on the side of the overflow tank is the self-bleed line. If, by chance, this line is obstructed, then the air will be trapped & cause overheating problems. Be careful is the plastic nipple on the side of the overflow tank as it is very weak & cracks easily.
To bleed the cooling system on a 1996 Olds Cutlass, locate the bleed valve, which is on the front of the engine above the water pump. After making sure the cooling system is not under pressure, open the valve by turning it counterclockwise. Fill the radiator with coolant until no air comes out the bleed valve, and a stream of coolant begins to flow from there instead. Tighten the valve and close the system to…
If by "bleed" you mean drain, disconnect the lower of the two hoses (do not confuse with the pipes from the AC evaporator) and drain the coolant into a bucket. If you are flushing the system (which you should if you are changing the coolant anyway), dont bother draining it, most of the coolant will flow out anyway, just do the coolant flush and fill from the radiator.
Be sure the coolant reservoir is full. Be sure the hose and hose connections between the reservoir and radiator are good and tight and the radiator cap is good. Be sure that the rest of the coolant system is in good shape (no radiator leaks, no leaks anywhere) and the system will bleed itself in time.
Low coolant level. The 2.7l v6 engine is bad about this problem, even though the coolant reserviour tank shows full. At low rpm, the coolant sensor shows low temperature and no heat coming from the heater. When you raise the rpm level, the temperature gauge will raise to operating temperature and heat comes from the heater. The coolant system has air in it and needs to be bled. To bleed the cooling system, find the…
you dont The cooling system has lots of nooks and crannies that trap air, making it difficult to fill the system with coolant. The fill cap and neck are supposed to be at the high point of the system to help air bleed out, but often they aren't. And even if they are, you need all the natural help you can get. So jack up the front of the car, which gets the coolant fill…
Simply start the engine and let it sit, running, for about 15 minutes. In that time the water pump will have circulated all the coolant in the system and the air in the system (if any) will have migrated to the radiator. Carefully open the coolant cap, relieving the pressure in the radiator and then, if necessary, add coolant and re-seal the system with the proper cap, making sure it is in good condition.