Where is the valve for coolant flush?

[Charlielj]

I'm looking for the valve to open to flush out out the old coolant. I'm not sure where it is on this 2014 Lexus LX 570. Do I need to remove all those coverings on the underbody to see this valve?

 

[sdnative]

Should have the petcock on the radiator and two valves on the motor (one on each side)

take a look at this thread as well

Coolant flush or drain?

I am about to fix my cracked radiator and engine valley coolant leak and found this post by @bloc https://forum.ih8mud.com/threads/4-000-mile-road-trip-prep-95k-miles-2014-lx.1184715/#post-12816854 In the past I have always flushed the cooling system completely, but can definitely see the...

forum.ih8mud.com

 

[Charlielj]

I'm looking for the drain value. Is the drain valve on the passenger side or driver side? Is it cover by an underbody shroud that I need to remove to access it?

 

[tbisaacs]

I'm looking for the drain value. Is the drain valve on the passenger side or driver side? Is it cover by an underbody shroud that I need to remove to access it?

passenger and yes

 

[sdnative]

There are three drain valves as shown above.

 

[Charlielj]

There are three drain valves as shown above.

Thank you so much for the image. It didn't load for some reason but now I can see the diagram. Thanks a bunch!

 

[bloc]

Look for the passenger side first. It is much easier to locate, and once you see it you know what to look for on the driver's side.

 

[gasman4u]

how much volume do you think you'd get from just draining and refilling the radiator? And is the total volume of coolant supposed to be 17.1 qts? TIA

one of the many coolant flush/change threads for reference:

200 Series Coolant Flush at Home

I was working on a coolant flush on my 2017 LC. It involved draining the existing coolant, putting in distilled water, draining that, then putting in coolant. Here's what I learned. 1. My petcock to drain the coolant was on the right hand side of the truck, and I had to remove skid plates to...

forum.ih8mud.com

 

[kms254]

When I did this I jacked one side of the car up at a pretty decent angle and opened the low side valve. I then repeated the process for the other side.

Looking at my pictures I did get just under 4 gallons out. My guess was the heater core had some residual left.

My coolant did have some black flakes in so worth doing(I was doing the valley plate repair)