Thermostat change question?
Thread Starter
Pro
Joined: Mar 2008
Posts: 507
Likes: 0
From: Hazlehurst GA
Thermostat change question?
I'm trying to change the thermostat on my LS2. I've got the hose pinched closed, but still getting a lot of coolant out of the engine. I have the floor covered with shop towels, but when I loosen the bottom bolt, coolant continues to flow from the block. How much do you normally lose during what I thought would be a simple and relatively clean "5 minute task". While I'm at it, do you add/replace fluid to the coolant overflow tank or to the radiator.
Thanks in advance.
Thanks in advance.
Melting Slicks
Joined: Oct 2005
Posts: 2,515
Likes: 3
From: Goleta California
you should drain the radiator that way you will need nearly the specified amount. Be very very very careful when you install the tstat to get the little nipple in the correct position and to be sure the gasket doesn't roll or get pinched. This simple 5 minute upgrade has caused more angst than you can possibly imagine. Also when you refill the reservoir do it very very very slowly about 1/2 quart at a time to avoid an air bubble. Massage the hoses to help. When you are done turn the car on and let it run for a while. Watch the temp and check the reservoir level. Good luck!
Burning Brakes
Joined: Nov 2007
Posts: 1,083
Likes: 3
From: Buena Park CA
That's correct. Get the engine temp up to about 180 - 185, then shut it off to let it cool down (I know, it'll take awhile). This simple process allows the engine to purge any air out of the system and then pull in more coolant to fill it up after it cools.
Safety Car
Joined: Jan 2008
Posts: 4,711
Likes: 3
From: Middle of No where AK
I drained the radiator and the hoses. Then you fill it back through the resivor. Make sure after you start it that you dont let the resivor get empty. It can result in a lot of air in your system causing water pump issues.
