When accelerating and/or braking, a thumping or knocking noise comes from the rear of the car. I do not believe it's my shocks, as there is no noise when going over bumps, only accelerating and stopping. What may be the cause? Control arms maybe?
View 7 RepliesAlright so my 06 is at about 102,xxx right now and has given me no major issues (knock on wood) besides this stupid noise that I cant pin point to fix. So far I've narrowed it down to this, sounds like its coming from the right rear and usually only happens when I am slowing down and or braking. Ive also taken note that it only happens when its really hot outside , all signs have been pointing to the rotors and brakes but i need some thoughts/opinions on what else it could be before i shell out almost $200 to get my brakes fixed. Here are some more details about the car
Rear pads replaced sometime last year they still have meat on them but i did not replace rotors nor did i get them turned.
I am sure that the noise is coming from the rear, ive been half way in the trunk while my buddy drove and i hear it coming from right rear.
Shocks have been replaced (noise was occurring before replacing them)
Nothing seems loose everything seems to be tightened down right.
Tires are brand new (noise was there before getting tires and after)
Mufflers are secured normal wiggle mounts look good.
Emergency Shoes have never been replaced but look ok.
Wheel hub looked great when i took it apart (Looks new doubt its that)
It happens when I am braking from 35mph below or sometimes 0 to 35 40mph rolling no braking then it goes away.
I replaced my struts and shocks a few weeks ago and i installed lowering springs H&R. Yesterday i started hearing this knocking thumping noise coming from the right front of the car me and my uncle took the wheel off today and looked around and everything was nice and tight we proceed to both push down on the right corner of the car to have it bounce up and down and we heard the same knocking sound coming from the right front area it sounds almost as if the strut blew out in the front right would the symptoms i described concur with the front strut being blown out, and on a side note the struts are only a few weeks old is this even possible since the struts are so new? I do have 20" rims on the car with low profile tires could i have hit a pothole hard enough to cause the strut to blow out? Iam planning on taking a trip to the dealer tomorrow and have them check it out.
View 2 Replies2007 Sonata 3.3. Crunching, clunking noise at low speeds, braking or accelerating away from stop lights. Noise disappears at speeds over 25-30 mph. Noise can be replicated by rocking car forward and backward while in park, with engine turned off. Rocking side to side does not reproduce noise. Bouncing car suspension at all four corners does not reproduce noise. Hood open, rocking forward and backwards, noise seems to be coming from behind engine, and with hand on engine motion can be felt. I'm thinking engine mount, but how can I get a good look at it to check?
View 3 RepliesI just bought a 2007 Sonata V6 (GL or GLS). Before buying the car, the last owner had the rear brakes "serviced" because the mechanic said the brakes were "sticking" - charged the old owner $300 for it. When I am on the highway and I brake, the rear brakes shudder. Do you think the shudder is because the rear brakes are still sticking, or because it needs new rotors?
View 5 RepliesFor the last year or so i have been annoyed severely by a clunking knocking sound from the rear (possibly passenger side) of the car. The noise occurs when there is torsion occurring or a sudden change of direction. I can go over a huge speed bump or pothole and not hear a thing yet the slightest change in direction or torsion will cause this extremely annoying heavy metal clunking knocking sound. I tightened every suspension system related screw in the rear of the car and the noise is still present.
The car is lowered on H&R springs (approx. 1.4 drop) so im wondering if maybe there is an additional stress that has been torturing the sway bar links for the last 3 years causing this noise. Or could it be the shocks (which are working properly)?
2006 Sonata 2.4 GLS. My car has done 60000 miles and has developed a creaking/knocking (metal on metal clunk) sound at the left rear. it is only noticeable at low speeds when accelerating and decelerating in stop start traffic.
It is not the shock as I have removed the shock and driven the car and the noise is still there, I have also looked at all the bushes and nothing is obvious. I have also checked tightness of all bolts/nuts.
I own a Jeep Grand Cherokee 2006 V8 4.7 with 133,000 miles. This week I went to a Quick Service Oil Change , after receiving an oil change they informed me I needed a Differential Fluid Change , that I "should have " had one at my last visit and couldn't wait any longer. After receiving the two , I left and not even fifteen minutes later , I attempted to use my breaks approaching the end of the highway.
Instantly the car started making an extremely long banging / thumping sounds along with the a lot of shaking and the car proceed to dead right there. I got it towed home , the company is supposed to send some one to come do a once over. What it could be? As sad as it sounds, I have a feeling they will do a look over and claim they don't know what is wrong or that it isn't there fault in any way.
Whenever my car go over a bump or uneven road, it causes a thumping noise in the rear driver. I have ultra racing rear sway.
I have re-lubricated the bushing, and changed the oem end links to moog.
Have an '82 MB 300D. Started noticing a constant knocking noise from the rear anytime I got it over 35rpm on an incline. Subsided if I pulled over and let it sit for 20mins or so. Now knocking just comes up randomly when accelerating. Goes days without doing it. Eases up when I let off the accelerator. Sound just like engine knocking but at rear of vehicle.
View 2 RepliesSo, I was getting this thumping noise in the front end (predominately on the driver's side) whenever I went over bumps. The car was at the dealership for something else and I asked them to check it out. With 145k miles I thought that it was the struts, but they said the struts were fine. They said the Upper control arms needed to be replaced along with the stabilizer bar links and the lower ball joint on the passenger side. Ok. Not a problem. I got the parts from Rock Auto. I replaced all the parts this past weekend and I'm still getting the thumping.
So, other than the lower control arms the only other two parts I can see that might cause that noise is either the outer tie rod ends or the struts. Anyone think it would be the tie rod ends over the struts? I can get a set of tie rod ends for $30 from Rock Auto. The struts are more expensive (I get the quick change struts with the coil and everything.)
We have a 2013 Sonata. For a while now we have been hearing a thump-thump-thump from the back of the car. The thumping starts as soon as the car moves and it appears to come from the driver side.
We get the thumping in our parking lot, on local roads, on the highway - everywhere. The frequency of the thumping speeds up and slows down in lock step with road speed. The thumping doesn't get appreciably louder when we go around turns or when we apply the brakes. We feel no vibration through the brake pedal, or through the steering wheel, or through the seats or any other part of the car.
Six months ago we left the car with the dealer after taking the service advisor for a ride. He heard the noise but when examining the car they could not locate the source of it. They said the wheel bearings looked good, the tires looked good, the brake rotors looked good.
After that we replaced the old tires with new ones and had them installed and had the wheels and tires balanced at a shop that is known for doing this well. (They take care of a lot of SCCA weekend racers.) After all of that the thumping was still there, same as before.
Now the thumping is getting worse. We are planning to take the car back to the dealer to have them go over it again and start replacing parts to see if we can locate the source of the noise that way.
My wife just handed me her 2001 BMW X5(165,000 miles...new engine at 97,000) because they offered only $2000 on a trade-in. It still looks great - better than my Tundra with numerous whiskey blisters delivered by misbehaving cows. The Beemer tires are in good shape BUT the car has developed a loud knocking noise in rear end when you accelerate from a full stop (scares the heck out of you because it sounds like the backend is going to fall off). If you accelerate slowly it doesn't always knock, but other drivers try to run over you. Just had the air levelers repaired. My local mechanic thinks it is the drive shaft but not sure and won't touch it until something breaks or falls off. My question is - if it is the drive shaft and it falls off while driving - is this going to be a dangerous problem? Our mechanic doesn't seem too concerned and just doesn't want to tear it apart to check the noise. If possible (financially) I would like to repair it but will have to drive it to a bigger town to have it done. Or should we just throw in the towel and donate it to NPR?
View 2 RepliesWhen driving I hear, not feel, a slight thumping noise that if I had to guess would say is coming from the passenger side front. When I let off the gas the noise becmes more prominent and you can feel the thumping. Also when I apply the brakes heavily the sound/feel goes back to the same as if I was driving. I'm thinking CV joint/axles or spindle bearings, but I cant understand why the condition is at it's worst when I'm coasting. Has this "noise while coasting" problem.
View 1 RepliesI have a 2006 Sonata - LOVE this car. Lots of miles on it - 180,000 well cared for and routine maintenance done. I have a knocking sound from the motor AFTER it warms up.. Drives wonderful starts perfect. Mileage good as always.
View 6 RepliesFew days ago I noticed the noise coming from the engine.
Went to dealership. They removed the oil pan and found metal shavings there .The car has 90,000 miles. They will put a new short block (will be covered by warranty ).
Since they basicaly will disassemble the whole engine, I thought to ask them to replace also drive belts, timing chain tensioner, not sure if the short block comes with the water pump , will ask them . W
I have a 2009 Sonata Limited (4 cyl), and since the beginning of the summer, I have had a knocking/creaking type sound coming from both the front AND back of the car, which feels like is coming from underneath. I can feel it in the floor when it gets really hot, and therefore really bad. I hear it almost exclusively while accelerating or coming to a complete stop. When it gets really hot out, I can hear it very slightly while driving at slower speeds, but that's about it. Has no correlation to making turns, as would be the case with a tie rod.
I find it extremely strange that this is happening only in the heat. When it's cooler out, say below 80-85 degrees, there is no sound whatsoever. The car runs phenomenally otherwise, very quiet. Based on some stuff I've read, it seems like a suspension issue is a possibility? I live in a neighborhood with extremely poor roads, and actually live on a dirt road.
2008 SONATA i4. The transmission started to whine a lot when first driven when cold, well transmission was replaced under warranty due to "pump failure"? I noticed that the loaner car I received for tranny replacement had a knock at startup so I called and told the dealership about it, they said it was the timing chain, it was a v6, oddly it didn't sound like timing chain to me, started after fast idle and went away within about 100 feet of driving.
2 days after I got my car back it would knock after I started it up cold when it came down off fast idle, and would knock for about 100 feet of driving or so, then the knock would disappear until the next cold start. exactly like the loaner V6. Well took my car in to have it looked at, got another loaner, 09 sonata I4, same knock, service couldn't replicate problem with my car.
Went ahead and got oil change, drove car home and the next day it had the same knock at startup when cold. Just took it back to dealership to have them look at irregular tap/knock when warm at idle, also car still has startup knock, but just not as loud.
I have a 2007 sonata 2.4L with 93k miles that has a knocking sounds coming from the bottom of the engine. It seems that it is a bad rod bearing and was caused by low oil levels. I did not know that the oil was that low (3 quarts low) It started about a week ago. I know I'm gonna have to put it on jack stands and drop the oil pan.
By the way, Here is a video I found and it sounds similar to my car. Here's the link : 2.4L Theta Engine Noise - YouTube
2005(its NF model) Sonata 2.4 petrol manual. 75000 miles. On cold start makes knocking sound( sound like Diesel). After coupe of minutes when warms up the knocking sound gone.
Also when i start driving( still on cold engine) i hear that sound only when i let go from gas pedal and only in range of 1800-1500 rpm. When i accelerate i don't hear that knocking sound.
I think is not belt tensioner because sound is much longer than couple of sec.
I own a 07 Hyundai Sonata Limited with 31000 miles. It is 20 degrees today. When I start the car up there is this knocking sound from the engine. Once the car warms up the knocking sound only happens when the car is in drive or reverse. When the car is in park or neutral it is fairly quiet. The sounds is still there but not as loud as in drive or reverse. I have done the routine synthetic blend oil changes between 3500-4500 miles.
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