Why is my prius engine shaking and knocking but then 50/50 green antifreeze was good, no knock. Eventually after running about a minute it started sounding normal. Any If the combustion process doesn’t get enough materials to complete, then it’ll cause the engine to misfire. Their computer gave the same codes as O'Reillys- misfire of cylinder 3 and EGR valve. and/or P0304. Troubles with the engine itself. I had a 2010 toyota prius last year which had Engine Knocking problem at startup in cold/warm weather and it Definition of Engine Knock. My son has a 2010 Gen 3. Their bid to clean pipes leading to manifold, manifold and EGR valve replacement is $1,240. I talk about when the knocking problem first appeared Like other comments have said, it’s nothing really unusual on its own, but if you’re noticing it more inside the car along with some hesitation I’d recommend cleaning the egr system, new spark plugs if they haven’t been done recently, and engine mounts if they haven’t been replaced yet. Welcome to the engine knock club. As I backed out of the garage, the engine shut down again and the triangle and the other lights appeared. Typically, if you're asking yourself, why is my engine shaking, you might be dealing with one of the following issues: 1. Best So after having the prius sit for roughly a few hours, i start up the car and i heard really loud knocking noise and the engine shaking violently and I felt the car also shaking a bit too as a result of this i immediately turned off the car. In this article, I will talk about the most common causes of engine knocking and how you can fix the issue. So, let it set codes and diagnose them. DKG1011 Junior Member. Figured I would make a video so that people can see what I went through and maybe decide for themselves if they should do the work themselves and issues they might encounter. It's probably a misfire, but if simply may not be starting. With each cylinder, there is one fuel injector. Time for new spark plugs. Joined: Jul 10, 2015 Reminded me of out of balance wheels. Today while driving my 2008 Prius suddenly i could hear the engine vibrating pretty loud and the check engine light was blinking. Been dealing with some depression and put off changing my cars oil and went a few thousand miles over the change mileage. Now the engine light is on. Thought it had fired up on 1 cylinder, there was loads of body vibration and clanking. - New sparkplugs --> still same problem. Hardest part for me was the egr. In the Gen 2 world any issues with emissions systems at the gas tank were sometimes caused by people who continually top off the gas tank upon fueling and over fill the tank causing gas to spill out the fill hole and into Then the valve cover, the cam train bolts, spinning the motor to TDC then locking the cam, taking the timing chain off, then the valve train. A lean air-to-fuel mixture is one of the most common causes of engine knocking. Last night my 2007 Prius engine started making noises in the engine area. Isn’t the whole engine design different on a Prius compared to a normal car? To know more, you can also read our posts on why your engine is shaking, why your service engine soon light is on, and why your steering wheel is hard to turn. After that it ran fine all day, then that evening shook upon startup. MG1 is a 30hp electric motor, and that engine will be spun by it if it's running or not. Cleaned the Intake Manifold. With engine running nonstop get under the front of the car and listen to Engine knocking: what does it mean, causes, signs, how to fixAamco blog 2010 prius engine knocking6 causes of knocking sound from the engine. If this pipe is showing signs of being blocked, then maybe you should consider cleaning the EGR. It is Some models of these engines tend to accumulate oil in the bottom of the intake manifold because of excessive blow-by through the PCV system. I don't have any check engine light on. Took to local shop. I installed new OEM plugs. My Prius just started shaking out of nowhere so I found this site and all the people having the same issues as me. ( p0301 is back. Hey everyone. They recommended plugs, coils, EGR cooler and valve. . It sounds like an oil starvation issue where the motor isn't receiving proper lubrication for the first few seconds (hence the audible knock), then once lubricated quiets down. This has only happened about 3 times since I've owned the car (I Air or Vacuum Hose — Another common cause for engine vibration and power loss is when air or vacuum hoses come loose, begin to leak, or rupture. When the petrol engine starts there is a bit of a ”rumbling” sound, that is a good word for it in my opinion. Common causes of an engine knock. also after sitting parked a while. Friends have told me it could be the exhaust or the engine. There have been other reports that do not fit the above scenario, though. It feels like the car is surging a little. How to Fix a Check Engine Light Flashing with the Car Shaking. not a very exclusive club. I started my 2006 Prius this morning and after I had backed up a couple of feet, all of a sudden it started shaking just like my washer with an unbalanced load on spin cycle. • Loud engine knock or rattle noise. Started horribly knocking, shaking a few weeks ago. Check engine light on. To follow up, we took the 2011 Prius with the engine light and knocking sound from under the hood, to the Toyota dealership today for a diagnosis. In general, if the check engine light is flashing and the car is shaking then there is a problem with one or more engine components. Conclusion Engines can make knocking sounds for various reasons, but it is often due to a problem in the combustion cycle, such as faulty fuel injectors, spark plugs, bad ignition timing My 2010 Prius currently has about 180k miles on it. At least until it sets a code and stops trying. I also cleaned everything connected to the EGR valve, except the intake manifold. The next opening I can find at a mechanic is two weeks away, but I need the car for work on Monday. What you're describing is called a "spun bearing", and is causing a severe knocking between one of the connecting rods and the crankshaft. It didn't clear the issue. Driving it is very shaky as I gas it at all. If you have engine knocking (a form of engine misfiring), the engine will run very rough, and you'll notice strong unusual I have a Prius Gen 3 with 206K, and am suffering from extreme engine shake at ICE startup. Unfortunately, it may take more than one repair session. Cleaned the Throttle Body. That’s a great place to start. Then it was on steady, then blink, then steady Took it easy the rest of the The appropriate steps to fix a flashing Check Engine Light and shaking car depend on the root cause of the problem. I went to my Toyota garage, but they cound'nt tell me what was wrong, so I did some investigating of my own: - All engine mounts seemed OK. It fixed the Cylinder 2 misfires, which was caused Prius Engine Shaking When Starting: Causes And Fixes. Check engine light is blinking which describes misfire. An engine knock can be a sign of major engine problems. Therefore, there isn’t a magic bullet fix for the issue. At first no problem, then a very loud banging and heavy vibration (bit like an engine misfire but seemed worse). It never returns again until next startup. Each time I clean or replace something it runs fine for maybe a day or so, then the same death rattle occurs. Then vibration got bad and i can see the check engine light turned on. I bought my 2012 Prius v with 99,000 miles. It progressively has been getting worse and worse up until about two months ago where it was burning about a quart every 400 miles. My point is everyone loves to call HG immediately when that often isn’t the case. After starting my Prius the engine was knocking and shaking. Each engine whether it be a Diesel or gas powered, has cylinders. 4. Can't see why that would cause the engine to rev and not go anywhere or kill the engine but it would throw a hybrid alarm. There are a lot of reasons why your Prius may shake when idle. Hi am experiencing engine shaking and vibrating! This mainly happens on cold starts! Service Bulletin for Engine Knocking at Startup T-SB 0012-10 | PriusChat easy. Insufficient and inaccurate compression 4. So! My engine started shaking back in January and it threw a code for EGR Valve and misfire. Scan does not show any issue. Our Prius has done this shaking and rattling on start up a couple of times. We turned off the power at a stop light. Was showing Generic Missfire codes and missfire on cylinder 1, 3, 4. Unorgan Engine knocking is frequently caused by low oil, ignition issues, timing issues, rod bearings, or knock sensors. Tried water again and it knocked again. If they dont have the machine to clean them then go somewhere else. For this reason I never turn off the car until the ICE does its normal shutdown. It started running rough at around 110,000. Engine shaking during startup and acceleration from a stop. Fast forward a few months, starting in may, the engine started shaking again. After running the engine for 30 - 45 seconds it operated normally. • Initially runs rough. I'm not entirely sure the science behind why the head gasket would *not* cause the check engine light when it was warm out and I drove it around after it was ready, then *would* cause the check engine light when it was cold out, and I turned on the heater. Engine knock mechanism knocking ignition factors peril hidden bikeadviceEngine combustion knocking process internal vector illustration causes fuel occurs des chamber exhaust stroke motor pinging four when heat piston I started up my Gen-3 this morning (it's somewhat cold - 25 degrees) and the engine was shaking really badly as soon as it tried to kick on. The event last about 5-10 seconds. Toyota produced a fix for the MY 10-11 and was suppose to have fixed it but obviously it has not. So I've had several brief periods of engine knocking on startup over the last couple months, but they went away and my 236k 2010 Prius drove fine afterwards. Prius app which showed my hybrid battery at 30% charged. etc nothing worked except the following video The knocking and shaking happens right when the ICE kicks in after I started up the car and then goes away in about 5 to 10 seconds or when I changed gears on the car. Following this procedure I have not had any issues with knocking at startup. Got home and my husband got in to drive it. A rattling or knocking noise is common with cars with a faulty EGR valve or one with excessive One of the most disconcerting sounds that you can hear coming from your Toyota Prius is the engine knocking. Idk why it’s so damn hard to put back in. I kind of like waiting for it to start nowdays and enjoy the rumble. My 2010 Prius has starting to shudder and vibrate a bit on occasion when starting to accelerate as in stop and go traffic. My options are fix the problem or sell it and get a new junker car in time for work Monday morning. Remove the oil filter to access the knock sensor. I noticed that when it's shaking, the car surges a little. If the combustion process doesn’t get enough My 2007 Prius has the mileage of 171,000km and since around 3 years before I've sensed the knocking noise from engine, especially on acceleration at low speeds. Jump to Latest 35K views 1 reply 2 participants last post by mansoorch1 Jul 4, 2015. Not sure if I've heard it do it at speeds above that. So bad coil for sure. In this case, shifting into neutral immediately after starting the engine may reduce the noise and allow the engine to come up to temperature. Misfiring Engine. Luckily i was only few miles away from my home. This can happen due to the following: 1. Since it had about 70k miles on it, the engine started burning oil. Once it settles down and the engine smooths out, I did notice the car settle back a little. 1) Lean Air-to-Fuel Mixture. It sounds like it’s having trouble just running the engine. The solution for a Kia Optima shaking when idle might be different from a Prius engine shaking while starting. Took my Prius to the dealership and they said the noise was Update 10-16-15 See attached Techstream Capture File Examples. I hope it helps someone out there having the same toyota prius engine knocking. We have a complete trouble code library that helps you to discern what’s 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 . Just before i traded in my 2009 Gen 3 Prius about 6 weeks ago, i had this engine knock you describe, after leaving the car in the drive unused for around 5 days in the bitter cold weather we had recently. It was quite alarming actually. Let’s begin with a quick overview of the common causes: Causes of Engine Knock. Maybe something to do with the coolant in the heater core. " My code reader showed code P3190 & P3191. Now when my head gasket went it started sounding like this then got progressively worse and worse over the span of 500-1000 miles then it started dumping Toyota Prius Shaking When Idling Diagnosis Check for Codes. They show actve data and graphs from the Engine and Hybrid computers before during and after the problem condition. The most common cause of engine knock is either the wrong fuel type in your car or a bad knock sensor. Check Details. 160K miles and I would have rough knocking first thing in the morning that would subside after about 20-30 seconds and then the car would be just fine the rest of the day. My 2011 Prius (130k miles) has an intermittent loud vibration / rattle when the engine first turns on after being parked and not started for a couple of days. And I think TSB said it was due to intake manifold defective design causing misfire. Motor mounts themselves are relatively cheap, but it can be an extensive labor process to replace them. I bought the car new, and have religiously done all my own maintenance on the car. Their point was that if I wanted to keep a 220k Prius long haul I needed to be ready to spend that kind of money in the coming years. A loud mechanical knocking noise and visible shaking of the engine, then perfectly smooth. Then it shut down and tried again with the same result. Search Forums; Featured Threads; when it developed the dreaded cold start knock/rattle within the last month. If I'm speeding the noise stops. If you really want to "tinker" This video explains what to do to solve the problem of engine knocking in toyota prius cars specifically 3rd generation. But if your not then this is a possibility For these cars. 2013 Prius, my son's car, lately it violently shakes at start up. Less than 500 miles since first knocking and no driving for almost two weeks now. Regular maintenance: Keep up with your car’s scheduled maintenance, including oil changes, filter replacements, and tune-ups, to ensure optimal performance I bought my GenIII prius a few months back and, after a while, I noticed that the motor would start shaking in low RPM - high torque conditions. You can use a diagnostic tool to retrieve the trouble code, which will If replacement head gasket doesn't work, I'll get a different car. Why is my engine knocking? (15 reasons why)How to fix car engine knocking Knock causes combustion lowWhy does my engine knock?. I immediately stopped and then whatever was causing the My 2012 prius makes knocking and rattling noise when ever the engine starts and I'm on stand still or moving slowly. Within a week or two, I replaced the EGR Valve, spark plugs, and coils. Now i have had engines knocking from a misfire that was caused by coolant leaking from the head into cyl no. Improper and untimely mixing of air and fuel 2. This can result in a loud, knocking sound that can be heard from inside the vehicle. I mean the whole car was shaking big time. Posted January 1 A secondary issue is 2010-2014 Prius engines have flawed piston rings that often cause excessive oil consumption that ends up in the egr cooler passages. Engine knocking is a common problem that occurs when the fuel in your car’s engine detonates prematurely. In order for your engine to run smoothly, The vibration sound like those in early 2010 where people start the Prius in the morning and the engine start knocking for few seconds. I did my cleaning at 125k it was severely plugged and it never misfired at all. BOOM done! Now swap the head gasket and reverse. Simply open the file in Techstream and review the example cases. As far as oil consumption, I'm hoping new PCV valve will help and if I can fix engine shaking install an oil In the video, my text says "engine knocking" but my mechanic suspects this could be cam phaser related. If you had stopped the engine immediately the repair could have possibly involved a new crankshaft, and a set of engine bearings, but due to the loss of oil pressure the pistons would have been scuffing on the cylinder walls too. So like 10-30MPH. You can plug in a compatible code scanner to read these codes. It goes away once the speed in over 10mph. See example videos: Knocking at idle (Knocking Noise starts at ~19 seconds into the video): When the engine is started, the contamination may interfere with combustion causing a rough engine start, rough acceleration and uneven idle. When you feel that the shaking and vibration are coming from the engine compartment, you should focus on the engine itself because it could be the culprit. I shut the power down straight away and popped the bonnet. There are multiple reasons why your engine might be misfiring badly enough to cause a check engine light and shaking. Got it changed last month finally and now I see a little oil The engine will then make the knocking noise on the next startup if you let it sit for an hour or so. The pvc system was designed to low on the block causing the intake to pickup oil (never should go over 3/4 on dipstick). It has 2 DTC codes P0302, P0401. They'll point you in the right direction. I also don’t exactly understand why mechanics go to replacing the engine with another 3rd gen Prius engine. Seems my coil on cylinder 1 was just haggard. Lately it has had a nasty fit of shaking/knocking upon engine startup, but not every time it starts, maybe 5% of the time. Cleaned the injectors, Intake manifold, throttle body, egr valve all cleaned. I couldn’t see anything, but the thing I noticed was that the noise/vibration only appeared to start as the AC fan ramped up speed to defrost the windows. A forum community dedicated to Toyota Prius owners and enthusiasts. This is my third Prius so I’ve gotten used to it. We took the car home and have done the following: Cleaned EGR cooler. It's hard to see that in If your loosing coolant then you have a head gasket failure. But if this vibration is more intense than usual and is accompanied by rattling noises from the engine compartment, then it’s a cause for concern. Here are five of the most common causes of car engine knocking noises. The fuel injectors are located in the engine control unit. I have changed the 4 plugs. Exactly my experience. One guy here attempted to clean, then threw in the towel and replaced it with a lower milage one, bought on eBay I think. Afterwards i turned on the car and the engine turned perfectly fine without the loud knocking. I have put 4k So, I just had this happen to my 2012 Prius a few months ago. Faulty and erroneous sparks created by malfunctioning spark plugs 3. 225,000 miles. Knocking from the engine is pretty This was pooled a bit under my 2018 Subaru Forester. Prius battery test a month ago and the test came back in "new condition at 93%. Worn Out Belts. Seems like Toyota dealerships were offering this revised intake when owners complained about cold start knocking (and/or had egr blockage code), then it quieted down. The problem could lie with the fuel supply, a faulty ignition coil, bad spark plugs, or Tips To Prevent the Problem of Car Shaking When Starting. 05 Prius Engine Shaking/Knocking. I drove very slowly. I have 2011 Prius Base, 137K. Why Is My Car Engine Shaking? It’s normal for your engine to vibrate slightly while driving because of the movement of the transmission gears, crankshaft, and other vital components. 3. The machine looks something like this. Luckily, a knocking engine is often quite easy to repair. A. The more cylinders an engine possesses, the more power the vehicle has. I’m at the point where I just want it to run fine for a week or so so I can trade it in. This oil goes thru the intake then is burned and recirculated thru the egr and intake again. If the cam phaser is the issue, the question is, why, and do other Prius C's have the same issue? The service centre Didn't work, so I changed the spark plug in cylinder four. Before trying to figure out what is causing your Prius to feel like a washer full of towels, make sure the check engine light isn’t on. It has 2 DTC codes P0302, P0401. However, one way to do it is by unplugging the electrical plug from the bottom of the engine. Didn't fix the shaking, so then I cleaned the EGR and intake manifold. 5 C): • MIL “ON” with Diagnostic Trouble Codes (DTCs) P0300, P0301, P0302, P0303. I got a quote over the phone of 3500-5000 for engine rebuild and the guys said once you decide to put 4k into it, you’ll need another 4k for the battery, then 4k for a catalytic converter. Swapping the plugs was likely just enough to change its environment and caused the failure. Turned the power back on, and after a few seconds, the shaking and knocking started, then it became pretty loud (I would describe violent??) then the check engine light came on. The only code they were running was a PO4 code. Then the exhaust, EGR and then head bolts come out and the head comes off. In a Toyota hybrid, spinning does not mean running. The computer sets a code that tells you what is wrong when the Check Engine Light comes on. It could be something generic, such as P0300, which doesn’t offer a lot of help unless there are other codes to put with it. "Some 2010 – 2011 model year Prius vehicles may exhibit one or more of the following conditions at initial engine start after cold soak in temperatures below 40 F (4. It doesn't do the cold knock currently, but it happened in the past a few times. I plan on resurfacing the aluminum if warped. This noise does not sound internal to the engine. Before you do any looking around, is the check engine light on? If When this occurs, the engine will stumble and run rough, sounding as if it is misfiring. Now it knocks while driving and after the engine is already warmed. Which turned out to be a bad head and gasket. After warming it up, my subsequent 15min drive went normally. Come join It started making a ticking or knocking sound while the engine was on. My engine has a noticeable ticking noise in S1 (similar to many many other cars - doesn't sound like anything I'd worry about), then in quiets significantly in S2, quiets further in S3, and then is unnoticeable in S4. Anas Al-Mustafa Discussion starter. I then pressure washed both this afternoon and was happy with the Toyota Prius Engine Knocking Solved. Drpepper99uk. Engine vibrations and shaking typically mean that your engine is misfiring for one reason or another. $2600. But a couple days ago, I was idling a lot waiting for my girlfriend to finish errands, and after another 30 minute idling session, my engine started knocking and shaking hard. Finally I put 50/50 HOAT and it was good. Cleaned I even had the problem when running 75% water, 25% antifreeze. The last possibility my local Toyota Service centre offered was that it could be a misfire causing damper plate noise. It is something knocking against something at the rpm of the engine. I initially thought the same thing, bad gas and then went with 93 octane and fuel cleaner. My wifes 2013 Prius V we purchased new, it has Forums. The Update: the shaking/sputtering happens after I have been up to highway speeds and then slow down to city driving. Because if that falls off you will never know it and then the water pump stops working the engine will go into severe overheat and you will never know till you see the engine light come on. Loosen the knock sensor with a When a coil on plug ignitor fails it makes a G2 engine sound really bad shaking and knocking. Cleaned the entire EGR assembly. NOTE; I did a Dr. This is what I find really strange -- if it's a This video explains what to do to solve the problem of engine knocking in toyota prius cars specifically 3rd generation. It starts fine, gas engine starts fine as well, after about 30 seconds or more since gas engine starts, engine starts to shake, vibrate, knock so violently that it feels like it would blow up. New ignition coils, Still rough. Typically this happens when car started, driven a short distance, shut off before completion of warmup cycle and then cold-soaked overnight. It's a rough shudder back and forth. I haven't been driving the car at all. I put my old rad cap on that no longer holds pressure and no knock, but put the new cap on and also no knock. The three necessities for all combustion engines I've noticed occasionally on cold start the combustion engine has a terrible vibration and knocking that occurs for the first 1-2 seconds of ignition. A potential reason for an engine misfire is faulty timing. The noise is pretty annoying and is not normal at all. I would want it repaired immediately and find a way to leave it with them. Any used engine is likely to have a HG issue ir 2012 Prius Five, about 210k miles, one owner before us and well maintained. It seems to happen mainly when the electric charge is low and the engine is on charging the battery and then I start to accelerate at the same time. Not applicable to a Prius, but sounds like something caught in a traditional cooling fan. Like it's in gear and trying to go, with the brakes on. Engine In this video I summarize my experience with engine knocking and rattling on the 3rd Gen Toyota Prius. I used Dr. (Is the check engine light on?) Just about every prius engine ive had roll into the shop for a knock like noise it was because of a engine misfire. The plug was white at the end, so something wrong there. My car was shaking & jerking at any cruising speed, fast or slow. Why Is My Car Knocking And Shaking? Another symptom could be misfiring or a vibration. It seemed to have trouble switching between the ICE (engine) and electric motor. This is the pipe between the EGR valve and the intake manifold. Then, locate the knock sensor near the oil filter underneath the car. I have fresh oil, new battery, and had my car checked about a month ago. and access is awkward. However, here are some general steps that can help address the issue: Check the Trouble Code: A blinking Check Engine Light typically indicates a severe problem with the engine. If it is, get the trouble codes. Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by DKG1011, Sep 26, 2015. My Prius had some shaking and knocking sounds from the engine (it felt and sounded as if I had a flat tire) while I was driving. I hope it helps someone out there having the same Fixed the blown head gasket. First, let’s look at the causes of why the engine of your Prius might be shaking at the start. In the future go on Youtube Hello, new to the forum, but have read a lot of threads during my search of my problem with the Prius V. A motor mount makes no sense, it's a small engine, runs fine, you could spin the engine like a gyroscope and it wouldn't cause shaking like this at high speeds, and feel like a wobble at 30 mph, increasing with the speed. The shaking at startup varies in intensity and seems worse on colder starts. By today it would be fine through most of the warmup cycle, then start misfiring (resistance would get jacked up once it reached temp), but I couldn’t run it long enough to actually get the check engine light. Go on youtube and look up Prius Inspection as there's a certain button push scenario where you can make the engine run continuously nonstop for inspection. Then the check engine light started blinking. " 2010 Prius, can’t figure out why it’s knocking I replaced timing chain and tensioner and guides spark plugs and coils You can get a used engine for around $1500 if OP did all of that work on his own then I’m sure replacing the engine would not be a difficult fix and would be a lot cheaper that buying a new or new used car. I don't think my car have this issue since it is 2012 and I believe Toyota fix this issue for 2012. 3 posts · Joined 2015 Add to quote; Only show this user #1 · Jun 11, 2015. I had a toyota prius gen 3 last year where it had an engine knocking sound, where i tried every TSB and changed the spark plugs, spark plug cables, intake manifold, engine knots. Still rough. Another possibility If the engine “jumps,” then you have faulty motor mounts. dlvt nvlcv ydffdas afj haub bhsmm mtwlv gtbngbq kzh ffoe