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

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Old 10-28-03, 02:24 PM
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350z
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Question no heat

hey guys. I was power washing the undercarriage of my ls (I do this once a year in the fall) to remove all the dirt and debris. It is nice and clean.

Suddenly I dont have any heat in the car. If i set it to the AUTO climate control setting and put the temp up to MAX HOT I dont get any air flow. If I manually set it to MAX HOT and set the air flow to HI, I get full air but no hot air. Is this a coincidence, or could I have messed something up that controls the heater during my power washing adventure???
Old 10-28-03, 03:02 PM
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Pianoman72
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Maybe your thermostat or your heater control valve got stuck. Or you are low on coolant. It seems like a lot of people on this board are getting no heat.
Old 10-29-03, 12:21 PM
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350z
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Default problem solved

It turns out that when I flushed my transmission fluid using the method where you disconnect the hose to the radiator, I must have lost some coolant during the procedure. All I needed was to add about 1/2 gallon of fluid and I've got my heater working again. Yes I feel like a tool! sorry...
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