Overheating Car
#1
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Join Date: May 2013
Location: VA
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Overheating Car
Ls 400 temperature gauge has moves back medium from red line area while driving the last two days. I added antifreeze no visible leaks. Today stayed in red area while I was driving to mechanic. It went from little smoke to heavy smoke. Thermostat??
#2
Moderator
iTrader: (7)
could be thermostat but most likely it is air in the cooling system (hoping it's not anything more major such as a blown head gasket). you will need to bleed the system properly, which your mechanic should be able to do easily.
http://www.lexls.com/tutorials/cooling/coolant.html
http://www.lexls.com/tutorials/cooling/coolant.html
#3
Lexus Test Driver
iTrader: (3)
You most likely blew the head gasket or a seal if it went from light to heavy smoking. Hopefully you didn't warp the head while you were driving it in the red or you're in for a big ticket bill (head job or new engine). Hope you have the best of luck with it though.
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