Prius (2004-09) :: Crunch When Going Over Speed Bumps
Sep 10, 2012
My dad recently backed into my front right side. There was very little exterior damage but it still had a dent. I took out the dent and checked under for any visible damage and didn't see any. Over the past 3 months something has developed a little worse. It started as a small little crunch on the right side when going over speed bumps. Now on turning left hard or stuff like that and I hear it crunch. Its worse with more weight. It sounded like plastic but there's no loose plastic or anything. It's 05 Prius with 150k and I don't think there were any replaced shocks done. I bought it used.
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I have 1, possible 2 motor mounts in my 2001 Volvo S-60 that kind of crunch/squeak when I go over small bumbs. Actually, the lower passenger side mount does the majority of the crunching noise. The upper mount (visible when you lift the hood) does it more so when its cold and the rubber contracts.
I'm not 100% sure the lower motor mount is what's making that crunching noise - but I'm pretty sure that's what it is as the suspension is in decent shape.
My question is, is it possible to change the lower motor mount myself? I've heard that the engine needs to be supported when doing this, but is that so when you need to only change one? Also, does it actually need to be changed or would any kind of lubricant will work?
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I had the front struts replaced. I looked at the strut diagram and replaced most of the parts associated with the front struts. The rear shocks were also replaced. New brakes were installed on the front and rear. The front rotors were replaced. Mileage 124000 miles.
I thought this would might solve the squeaking when I went over a speed bump in the parking lot. It did not. How to fix the squeaking.
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In the last few thousand miles, I have noticed that the ride in the rear of the car is rather rough compared to new. For instance, you can feel the roughness and choppiness from the driver seat. When going over speed bumps, the rear end also does not seem to rebound nearly as well as the front. The front struts though, are working just fine.
At first I tried rotating and balancing the tires; the improvement was minimal. At the time I had springs from TRD on the car, so I reinstalled the original Toyota springs from the factory. The rough, choppy ride from the rear now became less noticeable, but is still there. I currently have 43,000 miles.
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Saturday, I parked the car and tried to lock the doors with the fob. The car held a constant beep but would not lock the doors. They locked fine from the driver's door.
Later as I was going over a speed bump, the car bleeped, the cabin light came on and off, and the display showed 'key found' in a period of 10 seconds. This speed bump anomaly happened twice later that day. Dark, I want to wait until dawn before getting serious into the debug.
My first thought is a loose ground wire or 12V connector. The last work was the brake accumulator recall. If the technician did not torque down the ground connector, there would be high resistance leading to the key fob lock problem as well as the speed bump triggered reset.
I also have a miniVCI so before doing any work, I'll use it to look for error codes. There are more than one connector that could be loose and having the codes could give us a clue if it happens again.
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I recently bought a CPO 2007 GX 470 with 110k miles. At no charge dealer made repairs re the Bulletin about clunk in rear when I slowly drive over speed bumps. Had all front and rear shocks raced with OEM shocks, and four new Michellin MS2 tires installed. Rear end still feels like is is bottoming out sometimes during regular local and freeway driving when going over different times of road bumps.
My 'i89 a Dodge Ramdharger ( only car I ever bought brand new off the lot ) with 174k miles and old shocks and original springs drives better over bumps and speed bumps than the GX. One Lexus dealer said the reason is because the rear air bags ( that are not leaking )do not fill up fast enough when going move bumps and that can cause the bottoming out feeling. My mechanic is going to check it over again. What could be causing the bottoming out feeling?
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Every time I go over a speed bump, I hear a very noticeable grinding noise as the tire goes up it sounds grindy and as it goes down it sounds grindy front driver side area. Took it to a dealer and they said there is no problem. Therefore, should I just forget about it until there is a problem? It doesn't affect function, but I do hear it going over speed bumps and not regular shallow bumps.
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I have a 2004 F150 4x4 5.4. Over the last few weeks I've noticed that when the truck has been parked for even a short time, when I start to move out I am getting a thumping noise from the rear, almost sounds and feels as though I am driving over small speed bumps, but once i get going it seems fine. Where to start?
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My Gen III is currently at 95k miles, and the large rear bushing on the lower control arms have had small tears for some time.
I have also been experiencing a rubber "crunch-like" noise from the right control arm. I have been able to silence the noise temporarily by spraying silicone lube on the bushing, but the noise returns after a month or so.
While it is a bit subjective, the handling has noticeably degraded compared to when new.
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I've been noticing some (a lot) of oil on the inside of my rear tire. I went ahead and drained my diff fluid to check if the was any left and there was but I replaced it and cleaned the tire (hoping I just drove through something) and it's back again already. I don't know much about axles, what seal usually holds stuff back in there? What parts should I expect to replace other than the seal and any brake components effected? I noticed a creak/crunch coming from that area but seems to crunch with suspension articulation so not sure if it's related but I have the feeling it is.
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Yesterday I was driving the prius when I came to stop for a red light there was a man hole cover that was sunken into the ground fairly deep and when the prius went over it while I was braking I lost braking power for maybe .5 of a second and the traction control light kicked on. This has happened a few times but this time was the worst, is this normal for an 06 prius or should I get it checked out? This NEVER happened in florida we just moved to chattanooga (roads are terrible) the car is also not enjoyable to drive here there are too many tight corners/bumpy roads I'm really thinking about selling it for a larger car that can handle the roads here better. My gti also never does this going over the same bumps/manhole covers.
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2009 Prius bottomed out last week and twisted up the bracket that runs the exhaust system in the center of the car. Tore one side totally out of the frame. Consequently, exhaust now bumps and rattles on said bracket. I removed the bracket this morning to get a look.
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My suspension has been creaking even when I get in the car. I'm not even that heavy (about 150 lbs). The ride feels the same as it has before, but I also notice squeaking when going over bumps. This mainly happens in the rear shocks. How to fix it?
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Having brake pads making noise while driving on war zone like roads? Sounds like the front end is falling off. It started after a front brake job. Dealer then replaced all the clips and it was fine for six months. Now starting to make noise again.
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I'm pretty sure I know what the problem is since when I hit the brakes it stops. When I took the left side tire off and right side I compared and there is a thin metal sheet that has room to move on the right, but is tight on the left. When the brakes were done before maybe it didn't seat correctly or something. Just wondering what that plate is called so I can order one and change it. Driven that way 2 years, but it bugs me when the window is down and people probably think my car is falling apart. Maybe I'll search for a brake diagram.
Edit: I think they might be called "anti squeal shims". I saw a picture of them, so maybe they didn't put enough high temp grease, but the left side is tight and the rights side you can move a couple milometers side to side so I'm sure that's the jingling noise.
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I currently own a 2007 Passat 2.0T, and I noticed that whenever I am going over a certain speed bumps I hear squeak.... noise from the front. There are times I really go over slow but i still hear the noise.. It's a noise as if the tires are touching / rubbing against the front fender or something.. suqeak... I don't hear the noise from all speed bumps but some of them
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When I'm driving over sharp bumps I hear what sounds like a small chain jingling around. I took off the hubcaps and jacked up the car to see if anything loose. I grabbed the exhaust pipe and shook it, but it didn't make any noise. I couldn't see anything that would cause it. The front right strut's rubber cover is off so could the strut make that noise?
I just read a few posts with similar problems, but one was a compression sound and another was a knock, and another was a metallic hick up. Mine is literally like a loose high pitch chain noise and change rattling in your pocket. No uniformity to the sound. But it also only happens over quick small bumps not large ones like speed bumps.
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Clunk in the front end when going over speed bumps? That is the only time I ever get it, never on bumpy roads or anything like that just at speed bumps. It seems to be louder on the drivers side but I am pretty sure its on both sides. I never noticed it until a couple speed bumps were installed along my normal route, but that could be because maybe I never drove over them previously?
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My wife has a 2006 GLS and the top strut mounts need replacing, they squeak during the winter when i go over speed bumps. Since i drive the vehicle more than her (i have a 92 accord that i drive to work daily lol) and i have to modify every car that i own. Since i will be taking the strut assembly apart to change out the mounts it gave me a good reason to purchase lowering springs ( coilovers are not in my budget).
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I have a 2000 Nissan Xterra with about 100,000 miles. When I start out and get between 45 and 55 miles an hour, it sounds like I am going over speed bumps in the rear end. I noticed that it seems to come on more when I let up on the gas and barely gas it again. What the problem could be?
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I Spent the day yesterday replacing all four struts on my '07 LE. I went with KYB, the installation went well (so I assumed). I put everything back together exactly as I took it down. Outside of the struts alone, I reused all other parts as everything seemed to be in good order.
Test drive: I seem to have a knock/clunk when going over bumps/pot holes at low speed (<35 and especially <15mph). At highway speeds (65+), I do not hear it at all, even if I hit something. I had a friend ride in the back and confirm that it was coming from the driver's side (left) rear.
Took everything back out and inspected, I noticed that the strut mount has a flange that runs to the flat side of the strut rod that looked a little worn, so decided to go buy a new strut mount (Monroe garbage, only thing available locally). I did notice the Monroe strut mount didn't have that flange the OEM one had, it is just a circle...I didn't know if that mattered. I Put in new strut mount on, same sounds in the same conditions. I want the clunk to go away.
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