Air pushing though the radiator.. 3406e

Make sure the head not cracked inspected the hole and replace head gasket if not it will only get worse.

 

Before you do a head gasket, make sure it's not your air compressor leaking air into the cooling system.

 

Unfortunately this won't get better only worse.
You could end up with a piston filling up with coolant when parked up.
This could cause you to bend a conrod when you crank her.
If you drive like this for to long the escaping cylinder gases slowly erode the head and/or the top of the block.Expensive to repair.The longer you operate like this the more it will cost to repair and you could be let down with a bang.

 

Are you loosing coolant? Check your coolant bottle and see if you have oil in your coolant; that's a sign of a bad head gasket also. Start, if you can, and pull the radiator cap off. If you see bubbles that is a sign of a blown head gasket or a cracked head. Here is a list of other things to check; that I found on dieselplace dot com:
1. White smoke when engine is cold (water in cylinder causing incomplete combustion)
2. Coolant smell in cold exhaust
3. Engine sometimes "binds" when starting (hydrolock in cylinder)
4. Exhaust bubbles in coolant tank when engine is running (cylinder blow-by into coolant system)
5. White water blobs on dipstick (small water leak into oil)
6. Oil level rises (big water leak into in oil)
7. Coolant pressure bleeds off overnight (leaks out through blown gasket)
8. Coolant running onto ground when engine is hot (blown out of coolant tank)
9. Loss of fuel economy, rough running, vibration, noisy (cylinder compression being lost)

You can also send your oil to Blackstone Laboratories and have them test it for you. Their website is www.blackstone-labs dot com They will send you out a test kit to put your oil sample in and also a return label for free. You just have to pay for the test. Hope this helps.

 

When they did the bottle test did they drain the air completely from the system and hook the fan to a remote source, disconnect the air compressor output hose, also they need to check the radiator cap first, and run the truck for at least three fan in cycles, to be sure it is the head gasket.

 

What a bunch of good answers in this thread.My thanks everybody!!

 

Are you sure you didn't just overfill the radiator? I know mine will push coolant out the overflow until it gets to about 2" below the filler neck.