LS - 1st and 2nd Gen (1990-2000) Discussion topics related to the 1990 - 2000 Lexus LS400

Ls400 overheats when idle

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Old 02-07-14, 03:14 PM
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LScowboyLS
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no, that is a cheap torque wrench, definitely NOT want you want to use!
Old 02-07-14, 03:19 PM
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home depot's is not long enough, you need to get this one from Lowe's
Old 02-07-14, 03:20 PM
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Comptia
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http://imgur.com/lB1sd5XI found my breaker bar, and i have a 17mm socket that fits the bolt
Old 02-07-14, 03:28 PM
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the six point socket is either this one or this one - not sure, not near my car at the moment
Old 02-07-14, 03:29 PM
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is the socket a six point?
Old 02-07-14, 03:30 PM
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that set up that you have in the pic should do the trick, if the bolt is not buggered up (rounded off)
Old 02-07-14, 03:32 PM
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pacmonkey
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How about the thermostat? Did you replace that as well when you bled it?
Old 02-07-14, 03:34 PM
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Comptia
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I just got the bolt off, put in some coolant to the top, turned car on and ran the heater. It started bubbling like crazy getting coolant everywhere
Old 02-07-14, 03:49 PM
  #39  
Comptia
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Well i ran out of coolant, it literally shot out like old faithful when i turned the car off. http://imgur.com/MaTk9jL It still isnt full from the bolt hole so im going to buy some more coolant from the store.

Last edited by Comptia; 02-07-14 at 03:54 PM.
Old 02-07-14, 03:59 PM
  #40  
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Originally Posted by pacmonkey
How about the thermostat? Did you replace that as well when you bled it?
unless he has the real Kuzeh thermostat from the dealership on hand, he would likely be doing himself a downgrade by replacing it
Old 02-07-14, 04:00 PM
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Originally Posted by Comptia
Well i ran out of coolant, it literally shot out like old faithful when i turned the car off. http://imgur.com/MaTk9jL It still isnt full from the bolt hole so im going to buy some more coolant from the store.
make sure to use distilled water for the 50/50 mix if you want your radiator and heater core and water pump to last a long time!
Old 02-07-14, 04:09 PM
  #42  
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Do i keep adding coolant until it stops going going down/bubbling?
Old 02-07-14, 04:53 PM
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Let the car cool off. Then add coolant. Squeeze the hose to burp out air. Reinstall fill bolt. Now fill the over flow tank to the cold line. Watch the tank over the next couple of drive cycles. Only fill the tank when its cold.
Old 02-07-14, 05:31 PM
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this is where that new Toyota radiator cap will pay off - the whole magic of LS400 self-bleeding depends on a very good condition or new cap!
Old 02-07-14, 09:16 PM
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Thanks for the help guys. Is this the fan fuse you are talking about, the pink one?
http://imgur.com/moLqIs1


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