The Unofficial "Ask a Stupid Question" Thread

[CDsDontBurn]

Yep, roughly the same spots only they’re just below the rear most freeze plug on the driver side and the front most freeze plug on the passenger side

Do both need to be cracked open, or will just one be enough?

 

[XR7-4.6]

Do both need to be cracked open, or will just one be enough?

Both will get ALL of the old coolant out of the block ideally, but for the work involved in getting at the passenger side one, just the driver side one one will suffice to dilute the old coolant stuck in that bank IMO

 

[dDUBb]

What's the condition of the coolant currently ? .. I would imagine most would come out via the lower radiator hose and radiator drain .. pulling thr plug out of the block seems like a good way to take a coolant shower.

 

[XR7-4.6]

What's the condition of the coolant currently ? .. I would imagine most would come out via the lower radiator hose and radiator drain .. pulling thr plug out of the block seems like a good way to take a coolant shower.

The lower rad outlet is toward the top of the deck where the drains are right at the very bottom of the coolant galleys so there’s a good couple quarts to get out from the block drain(s).

I’m not particularly religious about it myself, when I change coolant I drain the rad from the petcock first and only drain the driver side because it’s easy and simply dilute what’s left in the passenger side and elsewhere with the new coolant every 3-4 years. It’s not really any messier than draining the oil, I’m always left relatively dry, though there’s always bound to be some splashback

 

[Grog6]

I do my coolant every 3 years. and I get all the old stuff out by using the block drains, removing the upper and lower hoses for inspecrion. I flush the block and radiator with my hose in the thermostat hole or upper hose hole.
I put everything back together, add i gallon of coolant, and 2 gallons of distilled water.
I can feel good in knowing all the hoses were checked for soft spots or other defect anytime soon.