Uses a vacuum pump and this:
<img src="content://com.samsung.android.memo/file/69201f73-e221-32c7-0000-0160e70825d6" orientation="0" altText="ROB75260.jpg" width="600" />
Found it by accident on the early Bronco forum. Could solve the heater core gurgle issue. Ford 351W have a problem around some cylinders!

 

Technical difficulties, please stand by...



Robinair Coolant Refill Kit, use in conjuction with a vacuum pump.

 

http://www.robinair.com/products/coolant-refillerI see you fixed the image problem , here is the company site for you.

 

I got something like that kit for $70 and it works great. It got rid of the waterfall/gurgle noise by drawing a vacuum of all the air out of the cooling system and then filling the system with fresh coolant.
Just remember to plug the coolant drain tube at the coolant reservoir or the coolant system won’t draw a vacuum.

 

For only $10 clear instructions are provided and includes GPS coordinates for several of each closest to your location if zip provided.




and

 

Does this use a vacuum pump or an air compressor? I found some videos online with an air compressor, but can’t find the actual instructions for the tool.

 

Bottom line......spending some bucks on a pneumatic suck or blow bleeding accessory should not be needed. A well maintained and properly bled cooling system will not emit gurgling sounds from the heater core. Fix the problem don't toss money at it, clear components if clogged, drain and flush entire system. Consider using a cleaning agent to remove build up of smaller deposits prior to refilling system with your chosen mix of coolant.
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I'm not sure why using a tool is a bad thing. For one, it'll help you know if you have a leak somewhere in the system if it can't hold a vacuum. I've had multiple cars with these sealed systems, and they're a pain to bleed properly - even if they're well maintained. Having a tool that would assist with bleeding sounds fantastic.

Are you of the mind that an Impact wrench is also a bad purchase? If you maintain your vehicle, there's no way you need 500 or 1000 ft lbs of torque to loosen something, right?

 

X1 ............ great humour, some of us Brits have a sardonic humour also hmmm, as for the frogs, their humour is

 

X1 ................. they sell these in the UK for a 'cool' £165, errr, ya need a compressor (which I own) but then if you don't, that'll cost another €300-400+ and then the problem can still persist.

What price in $$$ is a good vac pump? ............ BOC want a small fortune in Europe.

I find flushing and back flushing is usually sufficient on my TD5 but if it gurgles I use my trusty radiator test kit or my modified brake filler kit to pressurise the system through but there is always the problem of the thermostat, if the system isn't up to working temp the stat isn't open apart from the tiny bleed hole, so it takes far too long. Set the heater on the highest setting and follow the RAVE procedure, it never fails. Thank the lord (whoever he is) for RAVE eh