2005 gmc canyon burping" The Cooling System / Bleeding Air

SOURCE: cooling system

I have a 2000 nissian qeust that is overheating and I guess it has some air how do we bleed the system? also it is not blowing air in the front what could be the problem of this major overheating?

SOURCE: cooling system requires burp.

Hey Tim,

I had the same problem with my 1997 Dodge ram 5.2 liter truck. I changed the water pump and it was actually that little o-ring on the heater hose that fits into the water pump on the top right side of the water pump. Also that metal piece on the return heater hose erodes after a while and rusts because it fits inside the water pump. I changed the metal part of the heater hose and the o-ring. I even changed the thermostat because it was easy to access. After I changed all of that I still heard the water running when I would rev the engine. After further investigation, I found that my bypass hose was leaking. The leak was small so I didnt see water on the ground and when the engine was hot it would just evaporate. Changing the bypass hose was more difficult than the water pump. You have remove so much just to get at a 3 to 4 inch hose. After I changed it, I filled up the radiator AGAIN and left the radiator cap off for about 10 minutes and added coolant as the level dropped. It worked, no more water running sound. Hope this helps.
AJ

SOURCE: Can't Burp the cooling system - Overheats

If you can't remove all the air by filling while running with heater on hot, there is a possibility that you have a leaking cylinder head gasket (pressure from there will fill the cooling system and displace coolant) To test, have a shop do a hydrocarbon test on the radiator. Hope I'm wrong, but quite often on those I'm not.

SOURCE: Help with cooling system!!

OK, firstly The basis that a cars cooling system runs on is very simple. The system is a pressurized cycle that moves the coolant around, along with the heat, and is slowest in the radiator to allow heat to escape. If the system is not pressurized then the cycle will not work properly and coolant will not move.
If there is air in the system this can create what would seem like a blockage. 'bleeding the system is not the answer especially if you are using the drain on the radiator. That drain is only for draining fluid not air.
If air blockage is the problem then what you do is open the system at the highest point possible. this is usually a hose at the top of the radiator or something, whatever is easiest. Then find the other hose attached to the radiator, lower, higher makes no difference. then simply squeeze the second hose. this will 'burp' the air out do this for a while until all that happens is fliud is pushed out repeatedly.
then reattach the top hose and top up the radiator, and go for a drive.
If this doesn't fix the problem then air is not the problem.

SOURCE: 98 VW Beetle. Changed out the thermostat for an

I have a 1985 Jetta diesel. What I did since the car has no way of bleeding the air out of the system via bleeder screw I parked the car on a slight incline leaving the tank for the fluid at a higher level. I ran the car until the thermostat opened (The thermostat is on the bottom of my engine) I kept topping off the antifreeze. I also kept a jug of anti freeze and water in my car for the next few day. Whenever I got done driving the car and the car cooled off I would check it to see if I needed to top it off. I finally got the air out of it. You could call the vw dealer to see if there is a bleeder on the engine, if so open the bleeder and fill until antifreeze/water comes out, then close the bleeder and top it off to the full level. Just to be safe check the level after you drive the car. Air can still get trapped.