Prius (2004-09) :: 2006 - Rattling Noise Coming From The Engine Under Acceleration Only
Aug 15, 2016
i have been hearing a rattling noise coming from the engine under acceleration only. It isn't a super consistent rattle, seems to only happen when accelerating from lower speeds. And sometimes you don't hear and other times you do. It's not a bad rattle or knock it's more of a ticking/light rattling sound that is definitely abnormal.
I know my brake accumulator is barking at me and the 3 way coolant valve is going bad as sometimes I get a constant pumping sound. I don't think these have anything to do with it but thought I'd mention it.
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My '06 Prius just started making this noise. the check engine light is NOT on. I haven't really heard this noise before in my recollection. I just got an oil change 3 days ago and when I got the oil change there was no indication from the dealership that there were any issues. The engine only makes this noise when the combustion engine is engaged. I can't see any wobbling on the belt drives or and loose parts in the engine. The spin appears to be coming from the engine block or around the pullys for the belt. My first thought is that it could be dirty gas because I first heard this sound after filling up. I am 300 miles from home and have to drive home today.
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While driving through a tunnel today I noticed a metallic rattling noise upon acceleration. It goes away immediately when I let me foot off the gas and when I park the car and rev the engine the sound does not occur.
A few days ago, I had to rapidly accelerate and it felt as though I lost power for a split second. I am not sure if these are related, but I am hoping its not some sort of transmission issue (unless that is covered under the hybrid warranty. What was the diagnosis?
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Slightly shaking engine and rattling noise on acceleration,it happens when the car is hot and especially when the battery level is very low ,I guess is when as more load . If I accelerate and keep it steady at 20mph I can feel a constant vibration but goes away once accelerating more....like if you're driving on a rippled surface ....that is only when engine is on , doesn't happen on electric only.
The noise it sound like a tapping coming from the engine when slowly accelerating from 0 that goes away as soon I give more gas ,is annoying wile in the traffic.? Can the sparks plugs be the problem?they been changed 120k ago.....,I cleaned the egv pipe but problem still there. Like I said is only when the engine is up to running temperature.
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Recently when I first start my car in the morning, there is a rattling noise, which sounds like it's coming from the driver's side of the engine bay, or possibly just under the drivers side door. It only lasts for a couple of minutes. It will increase I accelerate, and then decrease as soon as I lift off the gas. After a couple minutes, the rattling goes away, and everything is right in the world. Today I drove it around the block and parked while it was still rattling away. When I put it in park the rattling went away. I put it back in drive and it came back. Then as usual it finally went away whether in drive or park. I'm completely stumped on this one. It's an '08 2.4l GLS and has 138,000 miles.
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My 2004 F-150 5.4 has a rattling noise coming from the passenger side of the engine when at operating temperature. The cam phasers and all related parts have been replaced. The reason I was prompted to change the phasers, chains, guides and tensioners was due to the engine stopping on me as I returned home from an errand. The engine had already shown signs of needing the phasers replaced.
The engine runs very smooth while warming up. Vehicle lacks power and has a rough idle after warm. Took the truck to a local mechanic, in the process of making a diagnosis, he performed a compression test. Cylinder 3 psi was much lower than the other 7 cylinders, the mechanic recommended replacing the engine (possible bent valve).
I have a Haynes manual, have searched youtube and checked this and similar forums, I have yet to find instructions on the removal of the head from the block.
(2004 Ford F-150 5.4 3v)....
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I have a 07 Hyundai sonata that has a rattling noise only during acceleration and only at just under 2000 rpm's. I went to a mechanic who checked the heat shields and exhaust only to tell me it was in the transaxel and sent me to a transmission shop. the transmission shop told me they think its the hydraulic lifters, and sent me elsewhere.
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My Camry has about 338K miles. Started making an engine rattling noise on acceleration. suspected worn timing components. I have all timing components off now. Of course plastic chain guides are worn, tensioner plunger seemed to be a little rough in actuation, exhaust cam sprocket does show signs of wear. I dont know for certain that replacing all timing components will clear noise. Questions are: considering mileage should i just replace all the timing components or the likely cause of the rattle noise(whatever that may be)? Should i replace the oil pump while i have pan off? How much trouble would it be to pull head and do valve job at this point? Lastly....2002 Camry has the 2.4 VVTI with the intake cam sprocket. How do i replace this sprocket and is it difficult?
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2013 Prius 3 making a squealing or rattling noise when accelerating after car is warmed up. It only does it when the car is up to temperature and when you accelerate slightly harder, like going up a hill or something. It sounds like a pulley or something squealing. It has been to the dealer and of course they couldn't duplicate the noise or see anything wrong. Not to sound funny, but it actually sounds like a hamster running on a wheel. It is very annoying. It is not a constant noise, it only happens under load. It gets louder when the ac is on as well. If you let off the accelerator when it starts the noise goes away. I don't know of it matters but our car has the forged 17" wheels on it from the factory, and the car has 8600 miles on it.
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My car just hit 111k miles last week! I have the 2006 sonata V6 LX, new spark plugs n new cats at 65k. So today I got to school for my final and realized the car was making a weird noise.
The noise is barely there on low revs, but when I rev a tiny bit it becomes very noticeable, and gets rattles faster to a certain point, but i think after like 2.5-3k revs kinda goes away(kinda because I don't know if its because i cannot hear it over the engine noise) and then when i let off it rattles on the rev down and then gets silent for a split sec and then back the low rev rattle.
What i understand it could be belts, pully's, the timing belt tensioner?
I have the 2006 v6, and so i think the seal for the front of the engine has issues for the year, so there is an maybe very slow oil seeping thru, it had stained the front left of the engine above the alternator, but has been like this since 50k miles when i first noticed it and no problems
And also i have 2 12" 1000w rms subs in the trunk, so could it be the alternator that can make that kind of noise?
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Toyota says the code is P0420 and the Catalytic Converter is rattling under heavy acceleration showing the Catalytic converter is bad and should be replaced. Toyota wants 2,334.00 which seems very high to me. Is it the Catalytic converter? The car is a 2004 Toyota Prius.
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I have a 2007 Prius with 136,500 miles on it. Love this car. Getting 53.3mpg currently. A while ago I started noticing a strange sound coming from the passenger side of the car where the engine is. Recently the sound has become more pronounced and it has me stumped. The noise occurs upon acceleration, but not all of the time. If the battery is at 2 purple bars and I accelerate, the noise is very noticeable. But once I get to cruise speed it goes away. Again, this is sometimes and not all the time. Hopefully it's nothing, but I figured I would post this incase something is on the verge of failing so I may catch it in time.
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I have 2007 hyundai elantra se with hankook optimo h426 tires. I like the car, everything is very nice except, the tires. I'm driving a lot in the streets and when i hit a bump or pothole, the car making a lot of noises(rattling noise) coming from the suspension (all 4 wheels). The dealer check suspension and said that evrery thing is good.I also think that suspension working properly, because a can not believe that all four shocks not gonna work properly at the same time. Can be this from the low quality of the tires and if i change the tires ,this gonna solve the problem?
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My mom drives a 2002 Toyota Camry with a 2AZ-FE engine and 180,000 miles on it. Recently she started hearing a rattling sound coming from the engine. She says the sound does not go away after the engine has warmed up. I took a short video of the sound. How to go about diagnosing the issue.
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I need to diagnose an issue I've had with my 2007 Prius with 79,000 miles on it. Several months ago I noticed a distinctive whining/humming noise coming somewhere from the engine compartment of the car while driving. The noise may be present at lower speeds, but the volume of the noise appears to increase proportionately with my acceleration and as such is most noticeable at highway speeds of 50 - 70 miles per hour. As I accelerate faster, the noise level seems to increase. If I take my foot off the gas and coast, decreasing speed, the whining noise gets lower in volume. I believe I first noticed this noise about 6 months ago, but wasn't more proactive about it like I normally would be because at first the noise didn't seem overly loud and my extended warranty unfortunately was up once I hit 77,000 miles. Now 6 months after I first noticed the noise, I believe it's definitely louder than it was when I first heard it, so much so that I can pick it out over the radio being on at a decent volume.
After checking some forums I thought the culprit might be a wheel bearing. I took it into a local Midas shop at they informed me that my passenger-side front wheel bearing was actually breaking apart in pieces. Obviously I had that wheel bearing replaced but I was also hoping this was the source of the whining noise. Unfortunately that wasn't the case as driving it home the noise was still present. They also said the tires were not balanced properly (from my Toyota Dealership no less when I had them install new tires) so I had the tires rebalanced as well. They did take the car for a test drive but probably stop looking for issues with the car as soon as they saw the wheel bearing in that condition. Also that shop does not specialize in Prius' or hybrids so they might not be able to notice the noise that shouldn't be there like I can.
Other than wheel bearings, where this noise could be coming from. Some posts on here possibly pointed to the ICE water pump or transaxle fluid (which as far as I know has never been replaced since I bought the car new).
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I brought my 2011 GS350 in today for the dealer to fix the rattling noise coming from the dashboard after 2.5 hrs of waiting the car was fixed and I drove it to work and the rattling was minimal but tonight after work it was really cold I drove the car home and the rattling noise seem like it coming from the dashboard area near the windshield and the noise was more noticeable than this morning right after i left the dealer.
I just bought the car on March 3, 2015 so far loving the ride but the rattling noise makes me worry. The car is still under factory warranty until March 29th 2015 I am hoping they can correct the problem before the warranty expires.What should I do next?
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I have 06 gs300 AWD and recently it started to make that noise. At first I thought my shock/struts went bad and i had it inspect and they are good, ball joint and control arms also good. However, I do not know if strut mount is bad or not. When I go over small cracks i can hear rattles inside but when i let my windows down I hear less. I do not know if the window or door has to do something with it. It seems like coming from passenger side. Btw sometimes i do feel even dashboard rattles a bit.
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So aside from many different fluid leaks, and the sound of rattling coming from my engine which I have been told is my gas pinging. I am hearing what I can only describe as the sound of a small explosion coming from under the hood. Its not as loud as a backfire, but it definitely sounds like something is combusting where it shouldn't be. its a '93 XLT V6. What could it be? how screwed am I?
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I currently own a 2006 prius which has done about 100k km. I've been hearing knocking and rattling sounds coming from the left tire whenever I go over a rough patch of road or even a speed bump, between slow to moderate speeds. It's currently bearable, but it gets irritating at times and it seems to be getting louder. What is the cause of these noise and how I can rectify it? I wish to get rid of it.
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Experienced a rattling noise coming from the back end (trunk area). I had the mechanic look to see what the noise was related to and he tightened the spare tire in the trunk but the noise continues to happen intermittently
We notice it most when we are stopped at a traffic light, but it does occur when while driving.
A wheel bearing had to be replaced. I apparently can't drive, as I must have hit a pot hole.
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My 2006 f150 was making a noise that's coming from the engine. It sound like rocks in the engine. When I'm going 50-60 MPH the engine starts to make a sounds like rocks in the engine. What's happening. When I go about 40 it stops.
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