Lexus RX 2010-15 :: Thunk Noise When Go To Accelerate
Dec 30, 2015
I have a 2014 RX, which is still under warrantee with 35k on the clock. I bought the SUV knowing i wanted to upgrade the look to the F-sport..... so, I did body wise and bought a set of wheels too.
On stock wheels 17s when accelerating from a stop, its smooth as butter. but upon throwing the new F-sport 19s on.. when i go to accelerate, it feels as if i have a bowling ball in my trunk.. its a "thud" noise. totally weird, i deemed it fixable by the dealer and took it in.
I did, they swapped out a NEW rear diff. for me thinking it was going to fix it. sure enough.... it didn't. I swapped lug nuts, studs, made sure it was hub-centric wheels, even went to verify if the wheels we reps or not.
So to go further in depth, i swapped out just the fronts, its a more faint thud, but with all 4 its more audible and feels worse. Here's where i am at, id put them on and dont mind the thud noise if i know its not hurting the car.
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Our 1 year old 2013 RX with 7,500 miles has a ridiculous amount of rattles/noise for a car that age. There seems to a rattle coming somewhere from the passenger side B pillar, and also from the passenger seat. I also hear a rattle coming from the back when driving, either rear seat or trunk area. Finally, there is a noticeable thunk when the car comes to a complete stop. It sounds like that is coming somewhere from the back under the car.
This is ridiculous for a premium vehicle of that price. I thought I would buy a solid piece of machinery from Lexus, but this car has more rattles than our 5 year old Toyota RAV4.
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Our 2013 RX350 makes an annoying thunking noise, coming somewhere from the rear underside of the car, every time you come to a complete s stop, e.g. at a traffic light. I had a test drive with a mechanic from our Lexus dealership, and he told me that every 2013 RX350 he ever drove made that noise. Is that true?
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So of course the dealership isn't going to diagnose this since "the car's not supposed to be driven that way" - but I get a nasty rumbling noise when I accelerate from a dead stop with wide open throttle. It only lasts for the first few thousand RPMs in first gear, and after that it is gone.
I was guessing that it might be the transfer case or something like that, but it's really hard to tell. I do have AWD. I did not have any such problem in my previous GS, which was a 2007 (current is a 2010). It's worse when I accelerate around a corner, and it also makes a small noise when I'm going above 80ish mph, which of course the dealership isn't going to diagnose either.
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2007 Santa Fe 2.7 engine
My wife was driving along and she said she heard a loud 'thunk' and then she couldn't accelerate and the engine light came on. I don't know if she had to restart it or what but she finished out her day and made it home ok. The engine light went off. When she got home I put the scanner on it. I have a Actron 9580A. It came up with 3 codes.
P2106
P1295
P161b
From what I've read on here and what the codes tell me I guess I need a throttle position sensor and that a computer update is needed. Is the ECM update something that can be done without taking it in? If I do need someone to update it is the dealer the best place? Can I install the TPS then drive there? Or does it have to be done at the same time? I was just thinking I might save a few bucks doing it myself.
Prior to this the Santa Fe had no codes. I do need to replace the battery which tested bad last month. I think the battery will need to be replaced before doing the update.
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Previously, I would sometimes experience sluggishness and hesitation when attempting to accelerate. Now, the problem has become worse. Also, previously the issue occurred when I suddenly needed to accelerate to pass another vehicle. Now, I can feel it from take off, you really hear the engine struggling(the kind of sound you hear on an old 4 cylinder vehicle trying to go uphill). Sometimes, I feel the engine is struggling to keep the vehicle at a constant speed on a level road. Tried fuel injector cleaners like BG44K. While these injector cleaners are in the gas tank, the car runs smooth and has decent acceleration. Later, I return back to square one.
It is not that I have high expectations and am a power freak. I used to own a 2004 RX330 with 150K miles and that car ran better at 150K without any tune up then my GX460 with 60K miles. So, you can imagine my frustrations.
One more thing I noticed, it runs better when I just gas it up. One theory, could be the fuel filter is clogged. When I am suppose to change the fuel filter on the GX460?
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I have found that when I accelerate quickly, while entering the expressway or getting around a semi for example, a burning smell enters the car. I imagine it's oil but uncertain. The smell occurs shortly after the quick acceleration and it doesn't occur consistently.
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I own a 2010 gx-460 premium, often when i accelerate top mi lexus throws a bad smell (rotten eggs)...
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When I accelerate, particularly between the 50-60 mph range, the engine makes a very subtle, yet definite clicking noise. Mentioned this to the dealer - the car is still under warranty - and of course, they can't replicate the sound..is this common?
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I have a 2005 SC430. When I start it up it makes a squealing noise, and the more I accelerate, the more it squeals. I read through this entire thread: [URL] ....
I did as PearlPower suggested and sprayed it with some WD-40 (the top center pulley area) and the noise stopped, but not for very long. Think I need a new belt.
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A question for you 3.6 owners. I have a 2006 3.6 Sport that I love, but I have this throttle thunking that drives me nuts. What happens is, when I'm going about 25- 30 miles per hour at around 2000 rpms and let of the gas for a second or two, then just lightly punch the pedal, I get this slappy thunky noise that I hear and feel.
I've had it to two different dealers and both told me they can't find anything wrong and it's normal. They acknowledge that they hear and feel it, but again tell me it's normal.
I've driven a lot of cars and never felt this sensation, so to me, it's abnormal. Since I've never driven another 3.6 I have nothing to compare it to and of course both the dealers didn't have a V6 on the lot for me to drive to verify that it is indeed "normal".
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I have recently noticed that when I accelerate my Toyota Prius 2010 it makes rattle noise and vibrates the whole car. The weird "bang" "bang" noise comes from the passenger side near the engine and when the noise comes my whole car shakes like crazy!
I went to my local car mechanic and he couldn't find anything wrong with it accept the EGR valve which I have now replaced. However, the problem still continues. When I shut down my car and then restart it its fine for some time and then the problem repeats!
It sounds like this .....
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So on the 16th I had my Koni FSD kit installed with a set of Driver Gear springs (30mm drop) and used the ECS Tuning install kit for both front and rear.
The issue I'm trying to troubleshoot is a 'thunk' noise coming from the rear but only when going over speed bumps or any other major bumps/dips.
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I've got my 2013 sonata and have noticed over the past couple weeks that after the car has sat for a while and I shift out of park that it makes a thunk/shifting sound that's coming from right below the car. I think it's coming from the gear shaft but I'm not a car expert so I can't be sure, it's more prevalent when I shift into reverse. What it could be? The car is still completely under warranty so I'm fine with making it the dealer's problem.
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I just picked the car up at the dealer, after having had the new window regulator installed.
They were just closing service and I didn't think to test the window before I left the lot, but on the way home I put the window down... nice and smooth and quiet.
Then I put it up and there was a loud thunk at the top of the travel. I tried to capture it in the attached video but it isn't nearly as "bass-y" as it is in person. Crappy mic on the phone I guess.
My other three windows have a very soft sound as they reach the top of the travel, nothing like this thunk. What it might indicate?
Video here: [URL] ....
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I have had my Corolla LE since October 2011, there has been no maintenance issues whatsoever with it, and it has 65K miles on it. Up until September it was a solid, quiet ride, and with the passing two months, what started to be a quiet vibration, has grown louder and louder. At first I thought it was something inside one of my storage compartments rattling, and then I thought it was the blower, only noticing the sound when I turned on the heat. Now, it makes noise when I accelerate, decelerate, at a complete stop (with the car still on). I read another post about it might be the heat shield, and I was convinced previous to reading that that it was something exhaust-related. But, I'm not sure. This noise has gotten louder, isn't consistent with any function of the car, it appears to be random, but the noise is still the same, the quick "drr, drr, drr" noise, truly a rapid gunfire sound.
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I have 3 sound bytes/videos. Probably best to listen with headphones or decent speakers to get the full effect. The issue has gotten worse. Seems to be worse especially in the a.m. when cold.
When I accelerate fairly quickly, not wide open, there is a weird noise of whooshing air, his or escaping air etc. It could be described as some type of whirring noise too.
I can let off the throttle and push slowly into it and it goes again. Only happens under a decent amount of engine load. Doesn't seem to matter what gear as long as it is under the same type of engine load.
It is coming from the passenger side engine bay as far as I can tell since I'm driving.
Here are the links: YouTube ....
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Currently I own a 2000 Lexus RX 300. I just had an oil change but there is a noise by the tires only when I accelerate. When I put my foot on the brakes it stops. I am at a loss. Where would the best place to ask and get the work done.
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So I know the 2013 GS (or many GS in general) have had complaints of squeaks and rattles. My GS has a couple but are very minor and only occasional.
I do have one noise that seems unusual though. When I am driving and drive over moderate bumps in the road, I hear a muffled clunk or thunk type of noise only from the rear passenger area and never anywhere else.
My car is a stock CPO 2013 F sport and not lowered or anything. Stock rims and tires. The shock does not seem to be leaking.
The noise happens regardless of if I am in regular or sport+ modes. Was going to mention it to the dealer at my next oil change and door trim replacement appointment I need to make Ina couple months.
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2010 F150 XLT 4.6V .... Not too long ago my truck started making this whining/roaring noise when I accelerate. It does not matter what speed I am going from the slowest to the fastest it makes this noise but it does not make it when it is idle or at least it is not loud to the point where I can hear it while inside my truck. I am not sure what this can be I am at about 51,000 miles and have no problems other than the noise besides the fact that to me it seems as if it pulls at times when I drive it but others say they don't feel it pull. So I am not sure what is going on and I do not want to take it to any mechanic I'd rather fix it myself and know what is going on with my vehicle?
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I just bought a 2007 GS350 that had 45k miles and have noticed something strange with I believe the transmission. So far I have has 2 times when I have hit the brakes hard and had to accelerate again and either heard a clunk noise or even had the tires burp once after the clunk. Tonight I hit the brakes hard to avoid a red light and heard a clunk. I'm going to get it checked out at the dealer but I bet they will tell me they can't reproduce the problem. I have 2 other Lexus's (IS300) and have had no problems so this is a first.
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