1999 ls400 coolant problems
Thread Starter
Driver School Candidate
Joined: Apr 2021
Posts: 8
Likes: 1
From: Washington
i'm willing to bet you still have air in your coolant. it took me over 30 mins of bleeding to get most of the air out (and i still think there were bubbles in there). by you stating your heater works intermittently tells me you still have air in your system.
what is your method of bleeding?
what is your method of bleeding?
I'm doing this as we speak, itll be fine today but when I drive it to work next, the temp needle will creep up a little on a steep bridge I have to cross. Then each day will progressively get worse.
Thread Starter
Driver School Candidate
Joined: Apr 2021
Posts: 8
Likes: 1
From: Washington
I'll double check the thermostat and the bypass hose when I have a chance to dismantle it again. The hose seemed fine when I put it back on. Like over said before, it's a 50/50 chance that I got the thermostat upside down. I put the new one in on the same orientation as the old but was not aware of the jiggle thing.
I'd also like to thank everyone for responding. I've never had this good of help asking forums for any of my other cars.
I'd also like to thank everyone for responding. I've never had this good of help asking forums for any of my other cars.
Thread
Thread Starter
Forum
Replies
Last Post
flipside909
IS 500 (2022-2025)
148
Apr 15, 2026 12:38 PM
nervekiler
LS - 1st and 2nd Gen (1990-2000)
7
Jan 14, 2010 10:00 AM
