Lexus RX 2004-09 :: RX330 - High Pitched Hum Once The Car Reaches 30 Mph
Jan 10, 2013
My 2005 RX330 has run fine for all 45000 miles to date. One exception is that there is a high pitched hum that becomes noticeable once the car reaches 30 mph and continues to increase pitch until about 45mph. The hum seems to disappear when going faster than 45. If you cruise on a quiet street at 30mph the hum will stay steady if you maintain speed. The hum will increase if you accelerate.
But... if you take your foot off the gas pedal the hum instantly stops. Put your foot back on the pedal and it instantly starts. You can almost "play a song" by taking your foot off and on the pedal. Lexus service clearly heard the sound during a test drive, but could not figure it out.
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I have an 04 rx 330 with air suspension. The swaybar end links have just been replaced on the front and a rattling noise persists.
The noise happens over large and small bumps at high and low speeds at normal and low vehicle height. When the height is at "HI" the noise is louder and it feels as though the front end is shaking loose over bumps at 10 km/h+.
I took it in and was advised to replace the end links, they did so and returned it claiming the noise was gone. The air compressor and struts are in working condition.
I have done a search through the forum, not extensive... I was wondering which other components come loose/wear and cause a clunk/rattle/shudder noise.
Also, tires are new and at approx. 32-34 psi.
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What would cause my Lexi to squeal, in a high pitch fashion, while she is running. The rapidness does not change with acceleration/ deceleration. The brake pads are also squeaking- but the new squeal is with no brakes being applied. I had a mechanic suggest a total transmission rebuild- idk if I trust that.
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I have a 2005 RX 330 with about 100k on it. The A/C does not keep the cabin cool. If you turn the fan up it will keep it cooler. I took it back to the dealer and they say there is nothing wrong with it. They did recharge it but it did nothing. You have to keep the fan turned up to just stay comfortable. I have had service loaners and I have to keep turning the temp up or it gets too cold.
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I have a 2006 RX330 AWD. I took it to get inspected and was told I had a bad O2 Sensor.
Are they easy to replace? What should the average cost be? I was also looking for the part number. I was told that "Bank 2 Sensor 1" failed. I was looking for the part but I am not sure I found the correct part.
I was also told that the front inner and outer Tie Rod needs replaced along with both rear wheel bearings. I found the parts for the tie rod but not sure about the rear wheel bearings. Wondering if i need to get just the wheel bearing or if i need the wheel bearing and hub assembly also.
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It seems like my wife's 2006 RX330 does not get as cold as it used to. At times, it will even blow warm and humid air, even though it is set to max cold, although this is intermittent, which to me, creates a harder problem to diagnose.
For example, if I put the AC on Auto, at 70 degrees, it never gets cold enough for the fan to drop below the Medium fan setting. To me 70, is not that cold, and it should be able to reach this temperature, and then slow the fan down to just maintain the temperature. I can even put the system on Max AC, and it the fan blows at the High setting, but it never gets really cold.
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Just had 4 new rotors put on my '08 LWB after 70k miles. A few days later, I noticed a very high pitched whine that occurs occasionally at speed. When I brake, it stops, and it restarts a few minutes later. It almost sounds like what you detect during a hearing test, only louder. And before you ask, passengers can hear it too.
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Car was in the garage. Had been off for hours. Husband noticed a high pitched whine coming from the rear of the car. Louder underneath. I opened the trunk and took out everything in the cargo net (thought something had gotten stuck in it, a gadget of some kind). Nothing there. I went to unhook the net and pull up the mat etc. and the noise stopped (coincidence I'm sure). I couldn't find anything. It didn't sound like it was coming from the wing at all (had trouble with wing being stuck down when I first got it).
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So I'm driving home late at night, few cars on the highway, I turn off the radio and I hear a faint, very high pitched whine coming from the engine bay when going 40-50 mph. It sounds like an electric motor spinning at high speed and frankly it's a bit irritating. The sound is there whether the engine is running and charging the battery, the car is using the traction battery or it's coasting and regenerating power. The sound stops for a moment if I gently accelerate and then lift off, but it comes back on coasting.
It's different from the louder, low pitched subway-train sound that comes from regen braking at low speed. Could this be the dreaded CVT whine reviewers complain about? Or is it the normal sound of the MG1 unit? This car is really quiet so weird noises pop up more.
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So, last week, I heard this high pitched squeal coming from the wheel well. At low speeds it seemed. It was in a parking garage.
But then, it disappeared. All of a sudden, I'm reversing into a spot barely touching the brake and it's squealing again.
I then take it again for a spin around the garage, no sound. I reverse again, no sound.
A few days later, I'm pulling out of the garage and the sound is so loud my GF could hear it from within another car behind me. It squeals until I start going faster and I'm on the highway. I get to my destination, ask my friend who is good with cars to check it out. But of course, I couldn't recreate the sound. Tried going slow, backing up, braking, going faster, etc.
So, do you know of a sound that would be very loud one day and completely go away the next? I saw some things about a shim or clip on the brake pad possibly touching the rotor or is loose?
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I finally got a recording of this, after trying to describe it without much success. Dealer drove the car 2x and claimed they don't hear it.
Video here, turn up your sound... noise happens just as the gas is let off...
As you can hear (if you turn speakers up, recording isn't very sensitive), it's kind of a high pitched whistling sound or whining sound. Happens when coasting (foot off gas) at 60mph. In gear or neutral, same noise. Only around that speed, only when foot off the gas.
What do you think this is? Some have suggested wheel bearing but if you listen this is more of a steady high pitched noise, not a helicopter like sound.
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Something weird started happening post my oil change yesterday. AC is working only at LO temp and it blows hot air even at 65. AC light stays on but it starts blowing hot air at any other setting then LO..
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How to reset/re-program my original key. It all started when the plastic casing of the key broke off and tried to use the original spare key wallet type with transponder and key dont go all the way in the ignition and key get stuck in one position but manage to get it out. Tried to put the broken one with the transponder close to it and will not start. Luckily i still have another original key that works. I have change the battery of the broken one and fabricated new housing made of brass and have tried the remote and it doesnt work too.
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Hard to fix? Only happens when going under 5 mph either in slow traffic or slowing down to park in parking spot or just stopping the car. Doesn't happen at high speeds. It's like I'm driving on snow or ice or wet pavement but there is dry pavement. Brake pads and rotors were cleaned with no success. Guessing that a sensor is dirty or broken or such.
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I have a 2004 RX330 that all of a sudden had the SRS warning light come on as well as the passenger airbag OFF light being constantly lit up even when someone is sitting in the passenger seat. I put the SRS system in diagnostics mode with a jumper clip to determine I am receiving a DTC of 23. Documentation I have found for this online states for Lexus it is a occupancy classification system issue which I know means it's something on the passenger side.
This seems like it would be related to the occupant seat sensor itself which I am first of all wondering if it is bypassed like the BMW guys have done on their cars when this issue happens.
Secondly, I'm wondering with this specific code of 23 could it be anything other than the seat/weight sensor? My passenger seat belt has tons of slack and doesn't retract as it should so I'm thinking maybe pre-tensioner sensor but not sure because it also seems to stick when trying to unbuckle it as well which leads me to believe it could be the fastener sensor.
I feel very unsafe having any passengers in the vehicle right now and the car is well beyond its warranty of course so bringing it in to the dealer is really a last resort option for me since I know at minimum they'll charge $1000 for SRS wiring issues based on what I've read.
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How to change the bulb on the rx330 fog lights. It doesn't say it in the manual.
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I bought my RC F new about a month ago and have put a very fun 1450 miles on it. Ever since I got it, there is this weird noise happening right at about 2.8k - 3k rpms. It doesn't seem to happen when I'm hammering on it as much as when I just accelerate on the road to get around somebody and peak at those rpms.
Not quite sure how to explain the noise, it's kind of a high pitched gurgling. Is this normal?
I tried recording it but you can't hear it through the video at all. If you turn the volume up and put your ear right next to the speaker you *might* be able to hear it. It's much more apparent in real life.
[URL] .....
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This morning, when I started the GX460, there for the first time, is a high pitched buzz. Cannot determine where is coming from and there are no trouble lights showing.
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I purchased a 2014 LWB six weeks ago. The vehicle runs great. For the last three weeks, I hear an unusual high-pitched sound when starting the engine for the first time that day (temperature between 40-60F). See videos below. Ride height is set to normal, so I don't think it is the air compressor. You may notice that the whine goes away when the idle rpm falls from 1500 on the first start.
First start (8PM), driver window open, high-pitched motor whine [URL] .....
Second start (8:05), window open, normal engine noise [URL] .....
Third start (8:10), window closed, normal noise [URL] ....
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I have about 1000 miles on my 350 F Sport AWD, whining noise. When I am driving with any pressure on the gas epedal, I hear a high-pitched whine in the cabin. If I take pressure off the gas pedal, the sound stops. It comes back as soon as I touch the gas pedal. The sound seems to be coming from the rear of the car, and it happens whether the audio is on or off.
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I get a very annoying high pitched electronic whine on an AM radio station that I like. It occurs all the time. Its like a grounding problem. It is so bad I can't listen to the station in my 2009 LS. Only one station, AM 810, has the issue. I don't have ML. Just a regular radio. No other radio issues.
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