2010 prius rattle on startup " I have noted the same thing with my 2010. Patrick Wong DIY Enthusiast. 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. I took the oring off the coolant because before i did the car would do the rattle upon start and stops at lights and stop Jun 2, 2005 · My 2010 Prius has starting to shudder and vibrate a bit on occasion when starting to accelerate as in stop and go traffic. Causes for misfires could be worn spark plugs, overfilling the engine oil, condensation or oil in the intake manifold. My 2015 does not cold start rattle at all (so far). The rattle goes away while on electric going under 10mph and when flooring it so the engine is at high revs. So, it happened in the summer, when cold, just once at 5500 miles and has not happened since. knocking at gas engine start up; rattle rattling; Vince R. If the car is not used then the next morning it starts smoothly. There seems to be a rattle/shaking coming from the passenger side front. Jul 7, 2022 · I have the rattle, knocking, shaking at start up. Another possibility is if you’ve say done a very short run the day previous: water can condense in the EGR and/or intake, get drawn into combustion chamber at next start up. May 30, 2024 · My girlfriend has a 2013 Prius 3 and the engine started shaking and rattling aggressively on startup and when driving about 25-35MPH in "eco" mode. Jun 25, 2018 · My 2010 Prius with 165k miles started to rattle/knock when accelerating about a month ago. A borescope inspection can be an early indication if the cylinder looks steam cleaned. When the car switches to Hybrid, no noise. Each time I clean or replace something it runs fine for maybe a day or so, then the same death rattle occurs. The car runs fine otherwise. Jan 23, 2020 · My wifes 2013 Prius V we purchased new, it has had all maintanance done at the local Toyota dealer since new. MikeV Junior Member. No repeat of incident until this morning. However, this past weekend we were visiting relatives about 150 miles from home and when I went to start it the next morning (temperature approx 35 degrees if that has any bearing) it made such a "clanking" noise it could be heard inside the house by our daughter. He is convinced its transmission related and beyond his skill. I'm facing conundrum that's been happening for a year or so now: sometimes at startup, but esp when I'm accelerating. Nov 10, 2013 · I recently had my oil changed at Toyota dealership at 11,700 miles. Once it gets warm it doesn't happen again. Dec 15, 2024 · Hi everyone, 2010 gen 3 prius 230k miles. Mechanic replaced a coil and 4 spark plugs last week because it was misfiring bad. Shake, Rattle And EGR? In 2010 Toyota put an EGR system into Prius to Jan 30, 2021 · Because of the above, most mechanics have never seen a 2010-2014 Prius cold start head gasket leak. Water in the fuel, or poor fuel quality, I've also had one personally with high mileage that needed a head gasket, coolant seeping into the cylinders causing a misfire. It is now at 295k. It goes away once the speed in over 10mph. 2010 Prius Model: Touring. Schedule an appointment with a qualified mechanic to diagnose and resolve the issue, as taking care of it promptly can help prevent further damage and more costly repairs. Picked it up after 2 days and upon starting heard a very loud rattling sound from engine; as if it were going to drop right out of the car. I did a bunch of things, including getting the pcv valve replaced a few times, getting the egr system cleaned, and more recently, getting the engine coils and spark plugs replaced (Feb). Jan 12, 2012 · I think very few people would see the check engine light. My 2012 would only "cold start rattle" if I started it up to move it around the driveway, and shut it right off. Shut it off and re-started ok, but very concerned. Mar 15, 2024 · I have replaced spark plugs, replaced coil packs, deep cleaned the throttle body and intake manifold, replaced PCV valve, replaced EGR valve, and cleaned the EGR cooler. Developed this start up rattle over the past week. The engine and transmission oil levels are full. A couple months ago I noticed during the winter on start up she would knock and rattle for 5-10 seconds and then be perfectly fine, I noticed a couple times that coolant would get a little low so I would top it off, this would help the noise significantly. This morning I went to start my Prius (2015 Toyota Prius Liftback 5D I4 Hybrid) and it made the same noise as in the video below (not my 2011 prius well maintained. Wife started it today and apparently it was rattling/shuddering "almost as if the tires were out of balance" from the engine bay--not the dash board. On to a few weeks ago… The last couple months the rattle occurred 2x on cold start. New EGR valve, cleaned EGR cooler, new intake manifold, new coil packs, new injectors and new rear trans mount. It went away after a minute or two. So here is my issue. You'd need to have cold-start knocking on two successive start-ups, with at least 10 minutes of driving on each trip. Also, if the ICE starts but is turned off before it automatically turns off (such as moving the vehicle a short distance), the engine will sometimes knock on the next start up. Seems to happen every second or third start. It has 149,290 miles on it, uses no oil in between oil changes, and has had no problems until this winter, when it developed the dreaded cold start knock/rattle within the last month. Oct 31, 2016 · Engine Rattle on Startup. Oct 16, 2011 · 2010 Prius Model: II. You could get an injector cleaning. As a former mechanic I have a question about a theory that one of my injectors is dribbling raw fuel into a cyl temporarily fouling a plug for a few seconds… Dec 21, 2011 · Hello, We just purchased a 2011 Prius this past July and we love it. Same sound at start-up (now at 12,600 miles). I have a 2010, and my engine shaking started happening at 180k as well (back 4-5 years ago?). Oct 11, 2021 · Hello! My 2010 prius is currently at 220,000 miles, regularly serviced and has had no issues up until recently. Nov 7, 2024 · Okay I have a 2014 model 2 prius with 172,000 miles have the toyota death rattle start up upon cold starts. FWIW did oil change at dealer 1000 miles ago. Oct 23, 2020 · A spring loaded damper that looks and functions much like a manual transmission clutch slips and rattles severely. the next morning. When left sitting overnight in our garage temps around 30 to 40. The next start up would cause a real ruckus. The sound lasts for a few seconds to 10-15 seconds and then disappears. Joined: Mar 8, 2008 18,200 Nov 9, 2012 · I owned a 2010 Prius Gen III which had an engine vibration problem at start up. Jan 2, 2025 · At cold-starts, say after sitting overnight? Or more random? Head gasket failure leaks coolant into combustion chambers, causing shake on startup. Jul 20, 2020 · Toyota Prius 2011 (JDM) - Cold start engine rattling sound Discussion in ' Gen 3 Prius Care, Maintenance & Troubleshooting ' started by Fouad , Jul 20, 2020 . It occurs when the Prius engine is cold (soaked at ambient temperatures below 50 degrees F) and it is started for only a few seconds in order to move the car from one location in the drive way to the garage (or something similar). . Nov 14, 2010 · Three month old 2010 with 5500 miles. Apr 10, 2021 · If you are a Prius owner suffering from this symptom, take a look at two causes of the issue and what you can do about it. Headgasket was not done not losing any coolant. Where did I say anything about a start up knock? #11 milkman44, Jan 11, 2018. Dec 22, 2019 · My 2007 had 217,000 miles when I sold it last month, and was noisy (valvetrain) when started cold. In the US powertrain warranty would be the only possibility but a ten year old car is excluded from the five year, 60,000 mile coverage. Mar 2, 2014 · My 2010 Prius II consistently makes a single loud clunk or clank sound in the font end when I shift from Park into D or R on a cold start after the ICE starts. Jul 7, 2020 · 2010 prius, had it about 1 year and previously had a 2004. You could change the plugs if they have not been replaced yet at 103k. Nov 22, 2020 · 2010 hard rattle at start and idle. I did a quick search to look for knocking rattle issues on a cold start but didn't find anything pertaining to gen 4s only 2010 and 2011 models saw this behavior. If it has only exhibited a start up rattle twice in six months then its a minor problem so far but definitely a sign. Discussion in 'Gen 3 Prius Main Forum' started by MikeV, Aug 13, 2023. Also have coolant loss and my hv battery isn't working properly the car continuesly runs without entering ice mode. Car has 80K miles on it if that helps. This was (is) is a widely known problem. Noise is only there when the gas engine first starts. New Member . Tags: Feb 8, 2014 · 2013 Prius V At some point this spring I started getting a vibration (more like a rattle) when I first start the car AFTER IT HAS SAT FOR A WHILE. Car starts and rattles bad. If the car is used the day before then it generally will rattle, etc. Some days the noise is not heard and the car runs fine. On a test drive when pulling away the car shakes most of time and especially if going uphill. Jan 29, 2020 · We have a 2011 Toyota Prius Hybrid and for the last two weeks or so a loud rattle noise is heard when starting the car. If, for example, you turn the car on, it starts knocking, then you turn it off to avoid damage, this would never get recorded. Jun 28, 2019 · 2010 has 260,000 mi but otherwise running great now. 2010 Prius Model: II. Put some acceleration to it and went away quickly. Occasionally it will rattle on a start up while using the car during the day. Jan 31, 2017 · It appears that when stored for a long period of time (in our case six months) it sometimes knocks on the initial start up. It doesn't happen if the engine is warm at all, or if I shift before the ICE starts up, or if I let the ICE run for more than about 10 seconds before shifting. Mar 19, 2010 · 2010 Rattling in engine bay on start up? Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Skoorbmax, Jul 9, 2010. Oct 29, 2019 · Address any rattling issues promptly: If you begin to notice any rattling or ticking sounds from your Prius’s engine, don’t ignore them. When the car is warm, no noise. Mar 11, 2017 · Just picked up a 2017 Prius 4 for the wife a few months ago. It went away after. Not every start up nor every cold start up. dber xjkof bzocxwj gyuie jiptd mtj ykknq aota sizzhelh qhuakfon
2010 prius rattle on startup. Headgasket was not done.