Ticking in center dash when I turn on the AC.
#1
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Join Date: Nov 2020
Location: oklahoma
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Ticking in center dash when I turn on the AC.
I really don’t want to take the whole dash apart but I will do what I must! Just need a little help. It’s a 2001 first gen RX300. Thank you!
#2
Is the sound fan speed related, if you turn the fan faster does the noise change/stop?
Squirrel cage blowers can get a leaf stuck in then and acts like playing cards in the spokes.
Squirrel cage blowers can get a leaf stuck in then and acts like playing cards in the spokes.
#3
I wonder if it's the same as this one: https://www.clublexus.com/forums/rx-...-rx-300-a.html
It sure sounds just as obnoxious.
The advice is probably the same. Verify battery voltage is good, and then start pulling fuses.
#4
Moderator
It could be the servo chatter. Take the AC system out of the 'auto' mode.
hint: serach on Modę servo.
Salim
hint: serach on Modę servo.
Salim
#5
#6
Moderator
#7
Lexus Test Driver
Oh wow that's annoying. lol
I have a very faint ticking on my RX330, almost can't hear it unless complete silence in the car.
Even with AC off it ticks non-stop but if I cange the mode to defrost or anything else I can hear the servos move and it goes away so I think I have a mode servo going bad but atleast I can hear the radio over it. lol
I have a very faint ticking on my RX330, almost can't hear it unless complete silence in the car.
Even with AC off it ticks non-stop but if I cange the mode to defrost or anything else I can hear the servos move and it goes away so I think I have a mode servo going bad but atleast I can hear the radio over it. lol
Last edited by Margate330; 03-05-21 at 12:47 AM.
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#8
Metal-on-metal will tend to be at the higher end of the spectrum. Plastic on plastic will be mid/low on the spectrum. From the video it sounds like plastic to my ear.
If it’s plastic parts then my guess would be a servo gear. Metal parts then I’m not sure.
I think you have to take out the glove box and go under the dash to where the servo assembliss are. See if the app locates if one is squawking.
Last edited by bordenj66; 03-05-21 at 01:41 PM.
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mcomer (03-19-21)
#10
Oh wow that's annoying. lol
I have a very faint ticking on my RX330, almost can't hear it unless complete silence in the car.
Even with AC off it ticks non-stop but if I cange the mode to defrost or anything else I can hear the servos move and it goes away so I think I have a mode servo going bad but atleast I can hear the radio over it. lol
I have a very faint ticking on my RX330, almost can't hear it unless complete silence in the car.
Even with AC off it ticks non-stop but if I cange the mode to defrost or anything else I can hear the servos move and it goes away so I think I have a mode servo going bad but atleast I can hear the radio over it. lol
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Margate330 (03-20-21)
#11
Lexus Test Driver
Ticking in Dash behind Speedometer
Sounds like a watch ticking and it only does it when the AC is set to blow from the front vents.
I can't hear it when AC is on & blowing because the noise is so faint but when I drive with the AC off I can hear it and it gets annoying after a while so I roll the window down so I don't have to listen it. lol
With the AC off, if I hit the "mode button" and change vents to floor or defrost- I can hear the servos move the flaps and the ticking noise goes away.
I have an aftermarket radio but it has no affect on it so am pretty sure it is a servo in my case.
Last edited by Margate330; 03-20-21 at 11:17 AM.
#12
Lead Lap
iTrader: (1)
I have the same problem
it’s not the CD
it’s the climate control. Changing fan speed, temps, auto or not doesn’t help. It’s random. Was annoying as heck. Was going to sell the car. Before fixing jt
searxh for my thread “free rx”
anothe helpful memebrr showed me how to fix it
there is YouTube video
I can’t seem to link here
you need to fix your Servo motors
it’s not the CD
it’s the climate control. Changing fan speed, temps, auto or not doesn’t help. It’s random. Was annoying as heck. Was going to sell the car. Before fixing jt
searxh for my thread “free rx”
anothe helpful memebrr showed me how to fix it
there is YouTube video
I can’t seem to link here
you need to fix your Servo motors
Last edited by ryanSC300lover; 04-07-21 at 01:15 PM.
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