Prius (2010-12) :: Loud Knocking And Shaking On Cold Start
Nov 3, 2015
We have had a few mornings (in garage) where it would seem to not really id say a knock but maybe a clicking sound and it would quit right away. This morning that did not happen so i shut the car off and checked oil it was low.
Got under the car and can not see any leaking no oil on ground. So i had a QT i put in and that seems to quiet it after a few seconds.
I called local TOY dealer and they said its common for 2010 to use some oil and not much they can do. I thought what is a little it was at the end of the dipstick.
They said they can only fill it up and then have me come back in 1400 miles and see how much is used.
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There's a thread similar to this on the front page, but I wouldn't exactly describe my issue as a "rattle".
I've got a good video of the sound it's making here : [URL] .....
It's definitely much louder with the hood up--doesn't seem quite as drastic when sitting in the driver's seat.
I've come across the thread here on the engine rattle/knock fix, but I'm not sure if this is the same thing. Would this be considered a knock?
It's a 2011 Elantra with about 82,000 miles on the odometer. It has an extended warranty on it, in addition to the 100,000 mile powertrain warranty on it, so it's at the dealership this morning.
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5.4. So I have a 2004 F-150 that just passed 80,000 miles and a month ago it started making a very loud noise on startup, but only cold startup, meaning if I haven't used the truck in about three hours. Now I went on youtube to research and found a video of a truck making the exact same noise! Here is the link:
2004 f150 cold start knocking noise - YouTube ....
Need to verify what this is??? Some people are saying cam phasers and some are saying I'll need a brand new engine!
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I have a Prius III 2011. I've had it for 10,000 miles and have had no problems at all. Yesterday, when I started the car, it made a loud rumbling and the engine shook, when it transitioned from the electric motor to the gas engine.
It did that several times when I restarted and then went away. The problem happened on the transition each time. Electric motor came on perfectly and then ten seconds later it was like an earth quake under the hood.
My dad watched the engine and said that it shook really hard. At first he thought it might be a fan belt but then he said it seemed more like water or something may have gotten into the gas tank and it was choking...
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So my 2012 plugin was parked for about 3 days, and when I turned it on, heard loud knocking and the check engine light came and stayed on.
When switching the car on or off, I'll hear two taps/ticks that were not there before. Loud knocking is not there now.
What can the issue be? It was very cold and snowing.
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I just purchased a 2010 RX 350, has only 7k miles on it. Really, really nice car. I noticed for the first time yesterday the engine ticking/knocking/rattling/whatever you want to call it sound when starting up on a cold start. It definitely goes away after about 5-10 minutes of running.
Most people seem to accept this as "normal". They hear it, live with it, and they never have any problems. I am a new Lexus owner, so I have trouble digesting that such a luxury vehicle with so few miles would have a "normal" engine knocking sound at 7,000 miles.
A few people posted in other places that this is indeed an issue, and should not be happening. There is a a Toyota (Lexus) service bulletin that I didn't get the details on, it is LSB-0028-09. LEXUS: ENGINE TICKING NOISE AND/OR MIL ON P0014, P0015, P0024, P0025, P0017, OR P0018. ENGINE MECHANICAL. *PE
Looking for details on this service bulletin, and if it does indeed apply to the engine knocking sound.
- Premium gas
- High viscosity cold synthetic oil
- Dealer fixes issue
- Other fix?
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Currently working on a friends 2011 Prius with roughly ~340,000 miles (!!!!!) that was used as a taxi, until now, he bought it from the taxi company and converted it his own daily.
I did a regular oil change on his Prius, and decided to change the spark plugs as at the time there was some sort of occasional shaking/rattle at cold startups. The shaking was gone after changing the spark plugs. This was all done back in March. Yesterday, he was driving, and all of a sudden, the knocking came back, a check engine light, and white like cloud smoke appear. Check Engine lights were P0300, P0301, P0303 (misfire cylinder). I told him to bring it over, I took a look, and his invertor engine coolant was all the way down (he told me he filled it up to top just two weeks ago). I originally thought maybe it was the ignition coils (for shaking), but the white smoke didn't make sense. So I purposely filled the coolant above the full line, and took it out to drive for about half a mile, and just as I suspected when I opened the hood, the coolant level decreased, at least by an inch.
I did not see any oil leaks, and the oil levels were just fine. The car just seems to shake/rattle at startup and when accelerating at low speeds (roughly 8 - 15 MPH) and than goes away, and drives normally. It still does blow off that white/cloud smoke when accelerating hard on the engine though. As for the smell of the smoke, I can't really tell, it is definitely not sweet, but it kind of smells foul/bad.
At this point, I am pretty sure this engine is gone, and the gasket/seal is blown.
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Last night I experienced a somewhat troubling event. My C had a horrendous knocking on a cold start @40 Fahrenheit or so. Shook the whole car. It lasted about 3-5 seconds, and ran perfectly afterwards, even making another cold start later on @30 without issue.
How worried should I be, and what's my recommended course of action?
2015 Prius C TWO, not II as uppercase roman numerals were used for model year 2010 Prius, w/5616 miles
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What is this metal on metal noise...you hear it the best around the 7-12 second mark...it is especially loud on cold start in the morning when you put the car in "drive" but don't move the car forward. It also is prevalent on hot days when you park the car outside and just start the car. The sound gets louder when you turn on the a/c during the hot day.
2010 2011 lexus engine noise metal noise - YouTube...
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Sometimes I have to park my car two blocks away in the afternoon, and later in the evening i need to park my car back to the spots in front of my apartment.
EV mode won't be enough to last the two blocks, even at 7 bars. Or sometimes the car won't let me turn on EV mode, even at 7 bars (battery too cold).
So the engine must run if i want to park my car back near my apartment. But the two block distance will not suffice to completely warm up the engine
So the next morning... (20~ Fahrenheit)
My car knocks for a few seconds the next morning the car starts up...
What is the definition of completing the warm up cycle? 120F? My car will turn off the engine after coolant temp reaches 120F (ECO mode).
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My 2009 Sonata 2.4l Sonata has been making a loud knocking noise when it is cold, but it will fade to almost nothing after it warms up. I tried to make a sound clip of the noise, but it was so distorted that I could not even make out the noise on the video.
For some strange reason the noise matches the skipping problem I have been complaining about since the beginning. Yea it's still there. It sounds like it is in the valve system, not the lower end. It leads me to believe it's coming from the valve clearance/ camshaft area.
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My 2013 Prius v made a really loud clicking noise this morning when starting the car from a cold start. It was less than 30 degrees Fahrenheit. The car has about 14K miles in it. Is this normal?
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I got a Mercedes Benz, SL560, US style, 8 cylinders, from 1987, mileage around 130 000I got the camshafts, rockers, and valve changed these days as the lifters were a little worn out as I was told. So I decided to do it now than later. But since the mechanic changed them I get a bad knocking noise and shaking at start up. It disappears after up to 5 minutes. The mechanic said he only changed the parts. That's it. Nothing else done. When I was there doing the work I say him using the chain. I left the shop as I could not wait till the work was done.
Someone told me that the clearance of the valve has to be checked and adjusted. Mechanics say that it is not possible as my engine is W117 and there is nothing to adjust. It will do it automatically. I took the car back as clearly that mechanic could not do anything else then for the car. He also does not want the car back. He hung up when we tried to ask him to check the car again (like checking the timing chain). Well. In between I asked another shop to check it. They replaced only 3 rockers again. They were new!!! There was a slight damage on them. I guess this is the part of the rockers where you put the screwdriver on. That is why it was a bit "damaged".This second mechanic said I should just drive the car as the problem will be less in ... dont know when. Hundred of miles, days, weeks?
I am not satisfied with this situation and therefore I am here to ask what the problem might be. This wasnt there before the camshaft was changed!I cannot really make the mechanic do what I am asking for. I am now in an asian country and they do what they wanna do. I am only there to pay high prices and nothing is done what I wanted. With this mechanic I am trying to get him to check the timing chain (chain tension) and plastic guide rails? Could this cause the problem or also something else?I wanna know what it might be so that I can tell mechanic when he picks up the car.
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Have a 2002 Frontier supercharge nissan....in cold it is flooding out....blowing exhaust and knocking and shaking on start up. After it warms up and weather warms up during the day.....it well start up without the horrible knocking.......I am very good about oil changes and preventive maintenance. To date (in 2 months) the dealership has replaced: distributor, a distributor cap, injection throttle flush, spark plug and spark plug wires.... and it is still doing it....the cannot make it do the sound and blow smoke when they have my vehicle...... it is at shop now.....and they want more parts put in it.
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After starting my Prius the engine was knocking and shaking. After running the engine for 30 - 45 seconds it operated normally. The car is always parked in our garage and the outside temperature was approx 32 degrees or a few colder. I have 30750 miles on the car.
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Bought a 2012 Azera a couple of weeks ago. When the engine is cold and I shift into reverse there's a loud bang and the whole car shakes. Feels as if I've been run into, or the transmission is going to fall out. I have also noticed some delayed upshifting (doesn't accelerate for a second but then really takes off). My 2007 Sonata did that a little, so I thought maybe it was a Hyundai thing, but maybe not.
My main concern is the BANG into reverse. The dealer said they can't get me in for several days, and that they don't have loaners, but they "might" be able to get me something to drive while they look at it. Honestly, the service guy sounded skeptical, and I guess I imagined a little better/faster response for such a new car. I'm almost afraid to drive it right now, the bang is so violent.
I'm pretty upset about this, it's my first really nice car. Has some sort of transmission issue with a new Hyundai? Anything in particular I should look for, say, etc.?
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My car has 63 000 km and engine is making loud knocking noise all the time. Dealer took a quick look and he asked head office. Now he wants to run some tests to see which valve is bad. He's hesitating between repairing or replacing the engine. I'm really disappointed of Hyundai quality. I really hope that I get new engine instead of poor repair job.
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Driving home the other day I noticed some vibrations up front. Reminded me of out of balance wheels. Then the check engine light started blinking. Then it was on steady, then blink, then steady... Took it easy the rest of the way home. Code reader said P0138 Oxygen sensor circuit high voltage bank 1 sensor 2, and P0304 Cylinder 4 misfire detected. At home is where I saw the engine shaking and extra noise from it (visions of piston rod slapping around in there). Removed plugs (original? tough to get out!), compression tested all 4 cylinders (130 to 140), new spark plugs (had they been in there for 196K miles?). Start engine and same, shake shake with some extra noises that weren't there before (car just sitting in driveway).
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Started up our 2010 RX 350 and there was loud knocking. This smoothed out after several seconds. I stopped engine and started it again. This time the knocking was less severe, but now the Check Engine light is on. Engine seems to be running a little rough as well. I have a feeling I have a bad plug or wire maybe.
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I have a 2010 prius 2;
This morning after starting the car and releasing the brakes I heard loud clunking sound (seemed like a belt ?) Turned the car off. tried it again exact same thing, turned if off .. opened the hood to see if I can tell where this was coming from.. started the car and the clunking came for <1 sec and went away, car drove fine brakes worked fine..
I read something regarding temp changes we have had some change but not a drastic change, and the car was driven over the weekend.
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This is something I have noticed the last 3 months. I have had the car 2 years. When I first start it and it is completely cold, it will only run like EV mode (HV battery powering the car) even though the gas engine is merrily running and it is not in EV. We live part way down a small hill, so now I often discharge the HV battery to a point low enough to trigger the recharge function which keeps the gas engine running forever. It does this morning or afternoon, if it has been sitting a few hours and is completely cooled off. It did it in Sept. at 65F and it does it now at 35F.
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