LS - 3rd Gen (2001-2006) Discussion topics related to the flagship Lexus LS430

stuck thermostat

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Old 05-06-08, 08:22 AM
  #1  
mywong23
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Default stuck thermostat

01 LS430, 107K
WP & TB changed at 90K,
****************************
on freeway, wife spotted temp guage climbing towards H...
I test drive with same symptoms, both fans spinning, radiator full of coolant.
turn on heater on HOT; to help lower coolant temp.

*************************
bought new thermostat from Lexus Concord, they even matched Toyota's price ($4 less)
swapped in new gasket & t-stat.
temp back to normal (halfway)

**************************
put old t-stat in hot water, heated to boiling.
did NOT open....
Old 05-06-08, 09:15 AM
  #2  
mikemareen
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thanks for the heads up!

Originally Posted by mywong23
01 LS430, 107K
WP & TB changed at 90K,
****************************
on freeway, wife spotted temp guage climbing towards H...
I test drive with same symptoms, both fans spinning, radiator full of coolant.
turn on heater on HOT; to help lower coolant temp.

*************************
bought new thermostat from Lexus Concord, they even matched Toyota's price ($4 less)
swapped in new gasket & t-stat.
temp back to normal (halfway)

**************************
put old t-stat in hot water, heated to boiling.
did NOT open....
Old 05-06-08, 11:01 AM
  #3  
ancdmd
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Originally Posted by mywong23
wife spotted temp guage climbing towards H...
wow, thats amazing, you got a good one there, don't let her go!
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