Powered by Discourse, best viewed with JavaScript enabled, 2009 Toyota RAV4 - torque converter shudder. Above and below 1500 RPM with the car in 4th there is no rattle/vibration. Toyota Supports ASE Certification Page 1 of 4 TC018-07 Title: TORQUE CONVERTER SHUDDER Models: ’07 – ’08 Tundra (6 Speed ATM) Technical Service BULLETIN November 30, 2007 TSB REVISION NOTICE: January 4, 2008: Production Change Information has been added. This shudder may be observed while driving under light throttle conditions betw . ... Torque converter clutch shudder can be felt as a mild vibration when engaging or in severe cases a harsh vibration like driving over rumble strips on the shoulder of the highway. I had a Camry that lost a torque converter. Some background info might be useful here. 2013 Toyota RAV4. I know, easier said than done on Tundras. The most recently reported issues are listed below. RAV4. But none of my cars host that function, so all’s well that ends well I guess. Slipping Transmission (Low Speed) The torque converter “stall speed” is the speed that the engine needs to be turning before the torque converter will begin engaging the transmission. Note: When discussing this w/your shop, the symptom is usually referred to as “shudder” rather than “stutter”. Called Toyota directly and got the details. First check fluid level and condition. Average repair cost is $100 at 55,800 miles. Toyota RAV4 owners have reported 12 problems related to automatic transmission torque converter (under the power train category). Most torque converter shudders happen at about 45MPH. PaulB.Crabb. Above 40 mph noise stops. 2015 model year rav4 vehicles may exhibit a brief shudder intermittently while driving under light loads between approximately 25 and 50 mph. Discuss it at Forum View This TSB. Nearly all modern automatic transmissions have a locking torque converter. Or how can I tell if my vehicle has Torque Converter Shutter? Most likely it’s going to really do some real damage to the crank and input shaft. Torque converter shudder is a shudder or brief shake in the vehicle after internal clutches apply in the torque converter. They decided one way to improve their vehicle’s mpg ratings was to modify the design of the TC. So far you have not described a torque converter shudder on your vehicle, only a noise but that doesn’t mean that it isn’t failing. Just as quick as it happened, it’s gone until it happens again. 8L90E Specs, Performance, and Identification, TH400 Transmission Specs, ID, and Common Problems, Toyota Highlander: Bad Torque Converter → Symptoms + Diagnosis, Toyota Sequoia: Bad Torque Converter → Symptoms + Diagnosis, Chevy Impala: Brake Lights Stuck On → Diagnosis. Automatic transmissions require some sort of slipping mechanism that allows the car to remain in D , engine running, when stopped at a stoplight. Bolt(for drive plate & torque converter setting). Bad Torque Converter Symptoms: Toyota Rav4. Toyota has some additional torque converter recalls because of Toyota torque converter problems. Instead it waits to turn off until 35 mph. This will create the same symptoms as the bad seals in that the converter is going to puke a bunch of ATF all over your garage floor, but you should also be feeling quite the vibration at speed. This shudder may be observed while driving under light throt . Torque converter shudder fells like a slight to heavy vibration in the transmission, and is usually accompanied by an interruption in power transfer. So when I went underneath and pushed up on the muffler (not hot yet) the noise stopped. The torque converter “stall speed” is the speed that the engine needs to be turning before the torque converter will begin engaging the transmission. It’s usually pretty detectable, as there will be a pool of fluid underneath your Rav4. With this said , the only time you should increase converter lock up pressure is when you are trying to fix a converter shudder . Your car is shuddering: A faulty torque converter can cause a shudder just before or after it locks up at cruising speed. Symptoms of a bad torque converter include a vibration, too much RPM on the highway, and slipping. It continues to cool for a few minutes at least, before turning off. Oh to answer the question, the Check Engine light is not on even when the noise is occurring. Here are some of the most common bad torque converter symptoms that could happen to your Rav4. It is similar to running over a rough spot on the road or running over a cattle guard. At approximately 85,000 miles, experienced transmission torque converter shudder. If this does not fix the issue for the owner, Toyota will replace your torque converter (as per Toyota repair bulletin T-SB-0034-14 Rev1) as part of warranty enhancement CSP ZE5. Yeah I had the TC shudder on my 81 Olds but not since then. I assume that is what is meant by “engaging”. Keep in mind that these trucks are designed to please everybody when you purchase the truck from the dealer . and I do not sense that the transmission is shifting gears back and forth and the tech does not indicate this is happening. Active Hidden Function via X431 PRO for Toyota Reiz 2015; Scanning DTC and Basic Reset Function by G-scan for Hummer 2008; AVDI Diagnostics All Keys Lost Programming for Range Rover Evoque 2018; WinEEM4s JCB Service Tool 2.7.2 2.6.1 Free Download; Caterpillar Engine Overspeed Program by CAT ET The TC is a contraption very similar in arrangement to one air fan blowing against another. A good tech should be able to determine the cause of the shudder, whether the rear-end's LSD, worn u-joints binding, bad drive-train mounts, or torque-converter shudder … The 2013 Toyota RAV4 has 7 problems reported for vibration at low speed during acceleration. This is one of the most common causes of torque converter problems. The new designs works the same as the old one when stopped at a stoplight or going slow, but around 35-45 mph it locks the fans together. If the torque converter has gone bad, then it’s no longer transferring power to your Rav4’s rear wheels in an efficient manner. It generally occurs at part throttle and light acceleration, between 15 and 50 miles per hour, just before the shift to one of the top gears where the converter reaches "lock-up." My RAV is a 2009 4 cyl. Models. Maintenance/Repairs. Down shifting to 3rd without changing vehicle speed raises the RPM and stops the noise. TCS is a relatively new phenomenon. It might turn on at 45 mph, but won’t turn off at 44 mph. TSBs. There are many different things that can cause your Rav4 to have torque converter problems. 2009 Toyota RAV4 - torque converter shudder. Now if you are already in lockup and get the shudder, different story. Maintenance/Repairs. TSB Number: The most recently reported issues are listed below. So they always spin at the same speed. Hi; I guess I’m dumb as I have no idea what to disconnect? And, shudder can be caused by the 'lock-up' and 'variable slip' of the the torque converter. Discuss it at Forum View This TSB. two questions; 1. what are the symptoms of Torque Converter Shutter? toyota, rav4. This increases the fuel mileage achieved and brings an automatic transmissions efficiency more in line with a standard transmission. Torque converter clutch shudder can be felt as a mild vibration when engaging or in severe cases a harsh vibration like driving over rumble strips on the shoulder of the highway. Similar to when your car’s AC turns on, it doesn’t turn off again in 5 seconds just b/c a little cold air came out the vents. I don’t believe the dealers analysis and your description of TCS only reinforces my feeling that they are wrong and trying to sell a transmission replacement. Then the manufactures noticed customers were suddenly buying models based on almost entirely on mpg ratings. R/ Paul C. Sure seems like torque Converter to me. Toyota RAV4 owners have reported 17 problems related to vehicle shudder (under the power train category). Common torque converter problems can take many forms, and diagnosing the cause of a wonky automatic transmission is fraught with complexity. There are issues related to many of their cars and trucks that you should be aware of. There was a recall on this model earlier this year/late last year for a shudder and it was supposed to just be a computer program fix. It was a 2003 five series. In the Toyota Rav4, a bad torque converter is often caused by bad transmission fluid, worn clutches, bad seals, or loose bolts. 10/14/17: Transmission and Drivetrain: NHTSA ID: 10119426 TSB ID: ZH1_Dealer Lette Dealer letter: in these vehicles, toyota has received some reports where vehicles may exhibit a brief intermittent shudder during torque converter flex lock up. Previous versions of … The best way to describe the sound would be a whir sound if you have bad bearings in it and a clunking sound if it’s a bad turbine fin. If the transmission fluid is dirty and old it won’t be able to do its job as a hydraulic fluid as well. This shudder feels like a manual transmission when you need to downshift. Taking a look at the transmission fluid should be the first thing that you do. This is one of the most common issues that causes a torque converter to go bad. Until October 31st, 2017 Toyota will reprogram applicable Camrys with new software to help prevent the shuddering of the torque converter under LSC E03. The Torque Converter is covered by Toyota’s New Vehicle Limited Warranty* for 5 years or 60,000 miles (whichever occurs first). The TC lock-up function is supposed to behave that same way. A bad torque converter will often make strange sounds. Torque converter engagement is commanded buy the PCM or TCM, if it were to command an erratic engagement how could this be the fault of the torque converter? It won’t do this at lower speeds so your Rav4 can take advantage of the torque multiplication that a torque converter provides. When this hysteresis function fails, it locks at 45, and turns off at 44, that’s what causes TCS. Torque Converter Flex Lock-up Shudder Service Category Drivetrain Section Automatic T ransmission/Tansaxle Market USA Applicability YEAR(S) MODEL(S) ADDITIONAL INFORMATION 2013 – 2015 RAV4 REVISION NOTICE August 31, 2017 Rev1: • Applicability has been updated to include 2015 model year RAV4 vehicles. The torque converter and engine control module/ecm (sae term: powertrain control module/pcm) logic have been modified to reduce the possibility of this condition from occurring. Next you can plan to replace the converter before it fails, causes a complete rebuild. If the torque converter fails to unlock at lower speeds, it shudders. sounds like a good option to check out. You don’t have to fix it, just have it disconnected. I asked the question about TCS as I don’t believe the dealers analysis and your description of TCS only reinforces my feeling that they are wrong and trying to sell a transmission replacement. Torque converter, front oil pump and chain See, Driveline - OEM Toyota Part # 3200033143 (32000-33143, 3200006051, 3200006052, 3200033141, 3200033142, 3200073013) Some background info might be useful here. Turning the screw clockwise 1/4 turn increases converter application pressure by 30 % . It can tell you a lot about the health of your transmission in general. Make sure you take a look at the fluid before you do anything with your transmission. As soon as I change the RPM either by shifting down to 3rd or speeding up the noise goes away. You might feel the car shudder while driving about 30 to 45 MPH. The torque converter clutch generally engages at speeds of 40 MPH and up, strong acceleration or braking will disengage the clutch. I don’t see how you can disconnect the torque converter. This is often a sign that the transmission isn’t operating efficiently. My uncle’s BMW had the same problem, he just disconnected it. It might turn on at 45 mph, but won’t turn off at 44 mph. @Nevada_545 's follow-up provides the OP the service of a more proper explanation. I would have it disconnected so you can still use overdrive. That pretty much settles it in my mind. It is probably inside the pan so you will want it to be done at a shop. This is a known problem by Toyota for 2012-2014 model years. This method worked fine for years and years of automatics. If you tamper with the electronic controls for the transmission the check engine light will be on and you might cripple the transmission. Also please check out the statistics and reliability analysis of Toyota RAV4 based on all problems reported for the RAV4. When this happens, your torque converter has a higher effective stall speed. When you slow down below 35 mph the two blades have to start spinning independently again, so whatever method is used to stick them together is reversed. The key concept is that you can now poke a pencil against the blade to stop the second fan from rotating while the first fan is still rotating as before. This eliminates operating inefficiency when it is at high speed (usually after about 45 miles an hour). Yes!!! I’ll grant than in attempting to simplify an explanation how it works I may have over-simplified. Your gas mileage may be worse, but probably not horribly. Lock-up torque converters have been around since the 1970’s, in my experience there were more complaint of torque converter shudder 30 years ago than there is today. Let me say it another way: If my car had TCS I’d rather Nevada be responsible to fix it than me. Torque converter shudder is clutch chatter. Bing July 12, 2019, 10:20pm #21. The RAV4 has been assigned 877 TSBs. Mechanically, the two blades get stuck together. rav4. Best Portable Jump Starters 2021 Ford … What I am experiencing and the dealer says is TCS, is a rattle/vibration in the back of the vehicle that occurs at 1500 RPM with the car in 4th gear (overdrive). I do not sense that the transmission is shifting gears back and forth and the tech does not indicate this is happening. When I first got the truck, it was shuddering for a split second just after shifting into 4th gear and torque converter was locking up between 25-35 mph. Pay particular attention to any shuddering and vibration as you accelerate. The clutch that locks the transmission to the engine at highway speed can wear out just like a normal manual transmission clutch. Is the check engine light on? My 2008 Toyota RAV4 with 200,000 kilometres has developed a shimmy/shudder/vibration at 60 km/h. If there isn’t enough it can’t do its job. If it occurs for only a second or two it is a chatter upon engagement. Or potentially taking out of overdrive. Toyota RAV4 TSBs. Some 2013 – 2015 model year RAV4 vehicles may exhibit a brief shudder intermittently while driving under light loads between approximately 25 and 50 mph. As the Rav is going in for routine oil change and tire rotation tomorrow it would be a good time to have whatever you are referring to disconnected. Did that several times with same result. 2009 Toyota RAV4 - torque converter shudder. My RAV is all-wheel-drive and the rear differential coupling was replaced about 5K miles ago with no impact to the noise. Has the tranny fluid ever been changed in this? It takes a bit longer for the transmission to warm up than the engine. Shifting would have nothing to do with torque converter clutch shudder. this shudder may be observed while driving under light throttle Would only do it when driving slow. Toyota said it was the universals and replaced the drive shaft – including hanger bearing – … Power Train:Automatic Transmission:Torque Converter Summary: Region letter: in these vehicles, toyota has received some reports where vehicles may exhibit a brief intermittent shudder during torque converter flex lock up. Let us know what the tech says. TCS is a relatively new phenomenon. I can make the rattle/vibration stop by down shifting to third. Your Toyota Rav4’s torque converter is responsible for converting the energy generated by the engine at the flywheel and transferring it to the transmission, creating a bridge between the engine and the transmission. This fluid helps cool the converter and transfers energy. The noise I hear occurs with the RAV driving and in 4th gear and at 1500 RPM. You could get similar issues going into overdrive so had to determine if it was the TC or the overdrive that was causing the shudder. 1. R/ Paul C. I don’t know either the specifics, look up RAV 4 Torque Converter Solenoid location. I don’t see how you can disconnect the torque converter. A shop can disable the converter lock-up function, and if the problem goes away that means it is probably TCS. The symptom of TCS is that it feels like the transmission is shifting gears back and forth rapidly in the 30-50 mph range. Instead it waits to turn off until 35 mph. I was first instructed by Toyota that the ECM is learning my driving habits and it … Torque converters use a lock up clutch to create a true 1:1 connection between the engine and the wheels. Bulletin Number: ZH1_Toyota POL17 Bulletin Date: 09-15-2017 Component: 103700 power train:automatic transmission:torque converter Summary: Warranty policy bulletin: toyota has received reports of customer concerns in which the vehicle may exhibit a brief intermittent shudder during torque converter flex lock up. If you don’t know or can’t remember the last time it was changed or serviced this would be the place to start. Pay attention to what’s going on with both your Rav4’s engine and transmission. I would have more faith in the technician that inspected your vehicle than someone on the internet that has never experienced torque converter shudder. This can lead to a feeling of extra slipping and chattering at speed. The 2013 model year has been involved in the most campaigns with 297 bulletins. I have a intermittent torque converter shudder around 45mph when lightly accelerating. toyota. A locking converter has clutches in it that lets the transmission make a physical connection with the engine. This makes diagnosing torque converter problems challenging. Here’s a transmission fluid color chart. Compare With Other Models. 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