Question about 1999 Lexus RX 300

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1999 RX 300 Lexus Blower Motor

The blower motor for my 1999 Lexus RX 300 makes urgly noise when ever the air condition is on. What is the problem. Clem

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Blower motor bearings going out ,,,replace motor

Posted on Jul 04, 2009

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Air won't blow out front dash vents blow from bottom and top. Where is motor for diverter located

Posted on Apr 23, 2012

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Blower motor is still working but , no power go to at connector

Posted on Jul 06, 2010

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1 Answer

In my 1999 Rx300, first i have click sound below glove box and now my HVAC fan runs only high speed.? I can lower it at all? What to do?


I would suggest replacing your blower motor resistor bock. Speed 123 go through a resistor to limit the current flow throught the motor therefore limiting motor speed. High speed bypasses the resistor block which is why the blower would only work on high.

Jul 30, 2012 | 1999 Lexus RX 300

1 Answer

1999 Lexus RX 300 clicking sound below glove box on AC system


If you take the glovebox out, you can see the air inlet servomotor on the left side of the blower housing. (SEE DIAGRAM)

This is very likely to be what you are hearing. This is a quite common problem. This servo is electronicall controlled. When the HVAC is turned on, the servo is supposed to go through a "full swing" to test itself. Many times, things (papers, napkins, drinking straws, etc.) from an overflowing glove box get jammed in the recirc-air flap right behind the glove box. when this happens, the servo cannot make a full swing and sometimes it damages the servo, which continues to attempt the full swing and keeps clicking because it is stripping its internal gears trying to make it happen.
You will most likely have to remove whatever it is that is jamming the door and replace the servo.

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May 20, 2012 | 1999 Lexus RX 300

1 Answer

1999 lexus rx 300 need help to know were the a/c fan relay is locaited


Its in the dash, far left side in a juction box, trim will need to be removed. What exactly is the problem? If the motor doesnt work, rap on it a few times, if it starts to blow, replace the blower motor. If not, check if both wires have power, if they do, then the blower controller may be bad.

Dec 24, 2009 | 1999 Lexus RX 300

1 Answer

No heat or air comes out and was told that the blower motor control was inoperable. Do I need to replace the entire blower motor or is the blower motor control a separate part?


If you have no heat blowing and no force of air in AC or blower mode , your blower motor (fan portion) under dash is the likely culprit. Check your fuses before diving in. As the motor wears the carbon brushes wear out.
A common symptom is that the motor starts and stops going over a bumpy road where its brush connection is intermittently bounced on and off.
If you only have alow or intermediate speed , that would be linked to the speed and motor controls.

Dec 11, 2009 | 1999 Lexus RX 300

1 Answer

Aircondition fan motor changed running ok but little air through vents


Does it still sound like its on high? If so you could have your vents blocked/restricted or your blower is not blowing on high speed. Usually a blower resistor if not blowing at max or not blowing at all speeds

Dec 03, 2009 | 2001 Lexus RX 300

3 Answers

HEATER NOT WORKING IN 2001 LEXUS RX 300


you most likely have a bad airmix servo. this happens alot on these. they are expensive to replace too.

Sep 10, 2009 | 2001 Lexus RX 300

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