Why not just drain coolant when changing components?
 

Ready to change Tstat housing. water pump and hoses. I have read many different ways of approaching the job in the forums. Turkey basters, hand pumps, blocking hoses, etc...

I read the flush and fill maintenance procedure in the stickys and am just curious why wouldn't you just do this procedure when you need to swap out components/hoses?

I hate working on cooling systems because they always seem to make a mess even doing my best to keep things tidy. By draining the system from the radiator drain plug I would think you have a much better chance of being able to contain the coolant.

If you flush and fill with new coolant wouldn't that eliminate mixing coolants. Also, I doubt many folks change the coolant on a regular basis so wouldn't it be a good time to kill two birds with one stone?

Am I missing something?

Cheers!

Andrew

The biggest mess occurs when you remove the drain plug. It goes everywhere. I now crack the plug open to where coolant just dribbles out and find something else to do for a couple of hours. When you remove the plug in the block it's even worse.

I figure you're going to probably have a mess anyway so, why not.

As far as I'm concerned it's fine to drain & change at the same time.

Do whatever you want. Fresh coolant is never a bad idea as long as you use the proper specs....