How do I bleed the air out of the coolant on a 2000 Monte Carlo LS 3.4L?

Fuse Box Diagram Chevrolet Monte Carlo (2000-2005)

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You have to bleed the air out of the system. There are 1 maybe 2 bleeders on the front of the engine on the cooling system bypass pipe one near the upper hose the the othe on the drivers side of the pipe. They are brass with a small bleeder valve in the middle. Get the car up to temperature and take your time to allow all the air out. Refill cooling system after it cools. Hope you didn't do any damage running it hot.

There is a bunch of stuff that you must remove to get the radiator out.

You must remove:
> Engine strut mounts
> Throttle body air inlet duct and air cleaner assembly
> The front fender upper diagonal braces
> Engine cooling fan and shroud assembly
> Transmission cooler lines
> Radiator upper brackets
> Radiator low coolant module
> Upper radiator (inlet) hose
> Lower radiator (outlet) hose

Then the radiator will come up and out.

it should bleed itself ,start up let it warm up then check level when its cold ,use only 50% antifreeze ,better still neat

Follow the top rad. hose.

there maybe a leak coming from the radiator

You have to bleed the coolant system.There are some bleeder screws,with hex heads on them.Hold the bottom nut and gently loosen the top until water and air flow,with the system not running.When the air is not present,tighten back down gently.If the air won`t bleed out,then fill the coolant reservoir over the full mark about 3/4 way full.Make sure radiator is full,and start engine with ac off.Let it run befor it bubbles or gets too hot,turn engine off,and let it set for about 35 to 45 minutes.Check coolant reservoir to see if the coolant level has dropped.It should have dropped,if so repeat until the reservoir stops loosing fluid.The fans should come on,and go off by them selves.When this happens,then the cooling system is perfect.This I hope helps,please let me know the [email protected]

The lower line off the transmission will connect to the lower radiator fitting and the upper transmission to the upper radiator.
Good luck.
Regards,

when enine is cold, remove the lower radiator hose, to release coolant , then reinstall with a NEW CLAMP

This could be a low coolant problem or a partially plugged heater core, I would check the coolant level first.