Lexus IS 2014+ :: Rattle / High Pitch Noise When Engine Running In 3500 - 4500 RPM Range
Feb 18, 2014
I've noticed a noise coming from my car (2014 IS350 RWD) that sounds like a light, irregular rattle, when the engine is running in the 3500 - 4500 RPM range. I don't hear it necessarily under load, but if I am in manual mode in a lower gear, and let off the throttle, I can hear it.
The best way I can describe the noise is like a bowl of rice crispies (rapid and random), only slightly louder. You have to listen for it, the road/traffic should be quiet, and if you get back on the gas, the intake noise that's plumbed into the cabin pretty much covers it up. I can also hear it in Park or Neutral.... I've wondered if it's a loose heat shield, or an exhaust issue, but I can't hear it standing next to the car or with my head under the hood. I only hear it from the cabin. The rhythm of the noise is irregular.
I don't think it's ping/detonation, since that usually shows up under load, is much louder and has a decidedly metallic sound to it compared to what I'm hearing.
View 14 Replies
Advertisement
I have a 2007 Sonata, 2.4L 4cyl. and it is making some weird noise as of late. I have done some research and from what I have read it seems like it may be a bad engine mount. One thing to note is that the noise really only happens when the car is cold and hasn't warmed up yet or on a cold day.
Basically the best description is that the noise is a high-pitched rattle/vibration noise. The noise seems to match the vibrations of the engine but doesn't seem to get more intense if I rev the engine. The noise does get quieter if I put it in neutral but it is still there. The noise also happens even if the car is parked and off, and I do something like shut the door or trunk. I haven't gotten a chance to get in there and look under the hood myself to try...
View 3 Replies
I have problem with my brake system. When is comes to last 10 feet to a stop light always make this squeaky noise/high pitch noise. Brought it to the dealer for few times and they said this is a high-performance brake that's why there is these type of sound. I have a 2014 IS350.
View 5 Replies
My wife is very short and when she drives has the seat in a very high and upright position. We realized that she has to be careful because the driver seat headrest will push against the headliner. I think the adjustment range could have been better planned. Our last car would not allow this to happen.
View 3 Replies
Just got a 1996 Jeep cherokee with right hand drive, 73,000 miles. Drove it less than 2500 miles when had problems with it shifting out of first gear. Would rev up the rpms to 3500 to 4500 and then a large jolt before going into next gear. Took to transmission specialist who was able to get it to act up., Now he tells me that the transmission is an import??? (was manufactured here in states and sent to Japan) Can't get the codes on the machine to tell him what is wrong with the tranny., says the codes say it is ok. Now what do I do. I need this car as I am a mail carrier and it was bought for that purpose.
View 8 Replies
I have a 1995 Lexus ES300 with 130,000 miles on it. When I reverse, I get a low-pitch growling and as as soon as I apply the brakes by a high-pitch, ungodly screech. This noise is definitely coming from the rear wheel areas. I'm not sure which tire is the culprit (I hear both sides from while listening from both the inside and outside). It happens frequently but is particularly bad on rainy, snowy, misty, or high humidity days. Two years ago I replaced the pads and rotors. At this point, the pads look to have about 40% life on them yet. This problem started happening about a year ago.
My initial thoughts were that it was just rusting because of the frequency on high moisture days. But both noises are way too loud for that. My second speculation was that the emergency brake was catching, but after examining it I think not. I've taken the entire assembly (brakes, rotors calipers, and emergency brake) at each tire apart and looked for any obvious issues that look incorrect. No luck. I've also applied brake quiet with similar results. Now my thoughts are that the low pitch is the rotors being warped. But that doesn't explain the screech and why it only occurs in reverse.
View 1 Replies
So this morning when I started my car for work, the engine warning light turned on.....Last night it was perfectly fine. What surprised me was the car is only 3500 miles in. Why encountered the engine light issue this early in their ownership of the IS?
View 9 Replies
Sitting in parking lot listening to ipod thru aux port opened door to access door pocket and sound system went nuts. I now have a high pitch noise coming through all speakers on all settings even with audio off.
View 8 Replies
I have a 2002 Corolla with about 180,000 miles that has been well maintained, but I know very little about cars.
Over the past months, I've noticed the engine noise on acceleration sounds a bit louder than I would expect it to, and it seems to be getting louder over time. It's slow changing, so I'm a little unsure. And occasionally I wonder if I don't hear a sound that shouldn't be there, though I couldn't describe it yet. Mechanic said the acceleration noise is normal at start-up for older cars until they get warm, but this happens even after I've been driving a while. Worth the $100 for an engine checkup?
Also, the A/C doesn't seem to be the strongest and has a high pitch noise when I run it. Normal?
View 2 Replies
I have an 03 2.0 jetta manual shifter. Never had issues before this morning. Got in car and sounded like it wanted to turn but wouldnt turn over. After a few attempts the turning sound stopped and I heard an electric pop. Now engine won't even try turning when I turn key it just clicks and engine makes a high pitch noise. Took starter and battery out got both tested and they are fine...
View 3 Replies
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] ....
View 14 Replies
My girlfriend has a 2008 with around 120k miles on it. It's been pretty flawless but yesterday the RPMs started surging while idle and made kind of a high pitch humming noise when accelerating.
Today on her way to work she said the radio was going in and out, the battery light lit up and then the rest of the dash lights came on, and the speedometer stopped working.
What could be the problem? Could it just be the battery?
View 12 Replies
I lost boost, went from being chipped at 16psi to 7-8 with a check engine code and a high pitch noise. Now is the secondary air pump connected to the turbo in any way. It just happened and I'm working on getting the code read. Just curious if my pump is just bad, what im figuring.
View 1 Replies
Experience a hissing sound from stereo, specifically mark levinson. The hissing sounds occur from certain songs and when the engineer rpms are around 4500.
View 1 Replies
My 07 SCREW 5.4L 4x4 has 77,000 miles and has a high pitch whining noise on front right side of engine. Sounds worse in the cold,increases with RPMs.
View 5 Replies
I went to go start my LS460... put the heat on, its fine.. when I turn the heat up on high I get this annoying high pitched sound. It has to do with the heat system because when I turn it off it goes away... I'm scared to keep the car running...
View 10 Replies
I replaced the timing belt an waterpump at 262,000 miles and ever since the engine makes a loud low pitch noise that varies in pitch depending on the engine speed. I replaced the alternator and it didn't work. I don't know if the power steering pump, a/c compressor or something else is making this awful sound.
View 1 Replies
At a certain temperature range (just below freezing, -10C to 0C) I was getting a rattle that sounded like I had a cup of dice on the top of my dash. Any slight movement would cause the dice to jostle about, in other words the rattle was constant, the slightest bump or ripple in the road, slight speed up/slow down, even relatively flat roads would cause noise. It would come and go as the temperature changed but this last week the outside temperature has been consistently in that range, so therefore while driving anywhere I had to first head towards a place called "nuts". I'm not due for any service for a while, but it was getting to the point where I was prepared to make the long drive to the dealer. First though, I tried to hunt it down myself.
Spent last night with my head under the dash looking for anything that could be that loose to make noise so easily. I noticed the TPMS reset button unit sat kind of loosely in the lower dash panel, I could make a noise shifting it about, but it was just too light and too low down to make the noise I was hearing. I did the usual reaching around applying pressure to various parts of the dash while driving. Trying to listen carefully, I decided the sound was coming from the windshield (or deflecting off of it from the dash). I tried applying pressure to it, I even put a pair of socks on the end of a yard stick to I could put some pressure at various points along the windshield / dash area. No difference.
Finally, got a bit of a hint. On the highway, passing 60mph the rattle started to abate, getting close to 75 mph the rattle almost completely disappeared. Wind pressure? On inspecting the lower part of the windshield, wipers, etc. I notice that by shifting the plastic underneath the wiper arms it would make a noise. It doesn't feel very loose, it took some effort to slightly shift it, but it did make a noise. I took my "test socks" and jammed them under the hood directly in front of the wiper, creating some downward pressure on the plastic. Silence! Golden Silence!!
View 5 Replies
I just drove away in a new 2014 Dodge Grand Caravan - had 106 miles when I took title at the dealership - and immediately noticed the most annoying high pitched whine or whistle. It seems to occur under 2000 RPMs and starts around 25mph. It continues until about 45 mps and then either becomes less audible behind the engine noise or stops - hard to tell. When the car slows down, it comes back -- most of the time. It changes in pitch as the car goes faster and as it slows down.
It has been so loud at times that I think it's a police or ambulance siren and I have gotten ready to pull over. It does not happen in neutral when I rev the engine - the car has to be moving. Turning the wheels doesn't seem to make a difference. I am going to take it in to the dealer but I suspect they will just laugh and say that's how the car sounds. I've never had a car that had such an annoying soundtrack - and I've rented about 5 of these minivans over the past 3 years and never experienced this, either.
View 5 Replies
I have a '07 Sonata GLS with the 2.4-liter Theta engine and the 4-speed automatic. It has 52k miles on it and has always been serviced regularly. It's been a pretty decent car but is starting to feel a little tired, most notably the worn/bouncy suspension.
Anyway, the other day I was driving down the highway and gave it a little gas to pass a slower car. Doing 60 MPH it downshifted to 3rd (~2000 to ~3300 RPM) and I thought I heard a noise in the engine bay, but I wasn't sure. I ended up needing more power so put it to the floor and as it kicked down to 2nd at ~5000 RPM the rattly noise got a lot more pronounced. Driving around normally I don't hear it but any time I put it to the floor (merging/passing) I will hear the rattle. I can also hear it if I lock it in 2nd gear and give it full throttle up a hill at low speed, like you might do with a stick shift.
It seems like it only does it under load because if I rev it to ~4000 RPM in park in the driveway, there's no noise, even at full throttle. I know the V6s had tensioner issues but I haven't heard much about the 2.4s. I'm not super concerned as it is still under warranty but what might be wrong with it as this is my first Hyundai vehicle, especially in case the dealer can't replicate it.
View 9 Replies
I Love this car ... with one notable exception. When I am getting on it a bit above 4500 rpms there is this rattle coming from the passenger side that sounds like a buzz! It only happens near 4500rpm and continues through the range to about 6K.
I am reluctant to bring it in for two reasons
1) I have an APR stage 1
2) I do not like nor trust people pulling $30K apart and poking around
View 15 Replies
