Overflowing overflow bottle

[Tristan]

So can anything else cause coolant pressure to push enough coolant back into the overflow bottle and make it overflow other than combustion pressure from a bad head gasket? When hot and running it looks like one of my kids is blowing down their straw into their drink. Just curious (and hoping) there could be a less serious explanation for this.

 

[Logroller]

have you made sure you have all the air pockets out of the system before you put the cap back on ,,, b/c every idi i have you have to birp them

 

[87crewdually]

Cavitation, eating of the cylinder wall, but less likely on the 6.9. This is what i found more than enough times, uugghh.

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Remove valve covers and rockers. Then pressurize each cylinder (with 10mm adapter if available) with shop air through the glowplug hole until you find the cylinder passing the air into the radiator. Start with the rear most cylinders and make sure your radiator is full and the cap is off. Once found you know what head to pull first to see what you got.

 

[Tristan]

So what is the best way to 'burp' them. I have never had any trouble with my other truck. But just in case I should try it. Doing headgaskets in my driveway sounds like too much fun.

 

[Agnem]

Takes me 17 or 18 hours to do it, but then I'm a neatnick.

 

[flatlander]

So what is the best way to 'burp' them. I have never had any trouble with my other truck. But just in case I should try it. Doing headgaskets in my driveway sounds like too much fun.

I put one of those Prestone flush and fill adapters in my highest heater hose then borrow a cooling system pressurizer from auto zone. open the flush fill cap and pressurize the system. voila!

 

[timothyr1014]

hey mel....takes you 17 to 18 hours to replace the head gasket, or burp the coolng system

up to late last night and too early this morning

 

[franklin2]

A faulty radiator cap will cause the overflow bottle to puke out too much coolant. You would need to burp the system, but only if you had just done some work and had drained the coolant out of the engine recently.