![]() ![]() We can now fully rebuild your own control unit within 2-3 working days and supply an unlimited mileage lifetime warranty* The fault is caused by the TCM conductor plate breaking down internally, preventing the control module/conductor plate from monitoring the correct rotational speed of the input shaft, making it unable to determine the slippage of the torque converter, causing ineffective torque clutch lock-up that prevents a smooth gear change or in some cases prevents gear selection entirely. The fault usually starts out as intermittent but always becomes permanent if left unresolved for long enough. You can also book your service appointment online.This is a very common fault for Mercedes vehicles fitted with the 7G-Tronic automatic transmission with gearbox code - 722.9, often causing the transmission to hold too long in one gear before aggressively forcing the next gear into place, this causes a very rough and jerky gear change. We’ll let you know if we find any transmission or drivetrain problems, big or small. You can bring in your vehicle for a free transmission diagnostics check and external inspection. If you are in the Central Valley and notice any of these problems or anything else that has you concerned about your transmission, call Ralph’s Transmission today at 209.526.1909. Common signs of problems include vibrating, shaking or unusual noises when the vehicle is in neutral. Sometimes, you feel them more while in neutral. Many transmission issues will only reveal themselves as you are driving. It could be the transmission or something wrong with one or more of the clutch components. If you are experiencing any trouble shifting or the clutch pedal itself is extra stiff or loose, you’ll want to get it checked out. When you drive a manual transmission vehicle, you can usually tell when there is a transmission problem when your clutch doesn’t react normally. Today’s vehicles are very advanced and will let you know when there is a possible problem. Transmission issues can often trip this sensor, or you may have a more transmission-specific warning light or message that alerts you something isn’t right. The check engine light is a catch-all for many different automotive problems. If you feel anything out of the ordinary, it’s smart to get your vehicle checked out as soon as you can. Grinding gears, jerking, shaking, slipping gears and sluggish acceleration are all physical indicators that there may be a problem within your transmission. Burning smells are often associated with transmission issues, usually coming from the gears grinding because of a lack of fluid or some kind of internal damage. Likewise, you should pay attention anytime you smell something odd. If you hear any unusual grinding, clunking or rattling sounds, it could be your transmission or something else wrong with your vehicle like a damaged motor mount or exhaust system problems. ![]() Your senses can tell you a lot about your transmission. When the transmission won’t stay engaged in the desired gear, it is cause for concern. The vehicle may have a tendency to slip out of gear while you are driving. Many people mistakenly assume that this is an engine or fuel system problem, but it is often the transmission system. ![]() If your vehicle feels unusually sluggish when you accelerate, it could be the transmission. You may just be overdue for a transmission maintenance service or there could be significant internal damage. Low fluid levels or fluid that is burnt or full of dirt, grease, water or metal shavings are also signs that there could be a problem. If you notice a fluid leak, that is a definite sign that something is wrong. Your transmission fluid can tell you a lot about the health of your transmission. Either way, you can request a free tow to Ralph’s Transmission and get your transmission inspected. This could be a hydraulic issue or mechanical damage inside the transmission. The most obvious sign of transmission trouble is when the transmission won’t engage into certain gears. Here are 10 common signs of a failing transmission: 1. You may be able to save a lot of money and headaches by catching minor problems before they turn into major ones! At the first sign of transmission failure, you should bring your vehicle into a transmission specialist for professional diagnosis and repairs. It’s best to recognize that you may have a transmission problem. There are so many sensitive mechanical components inside your vehicle’s transmission, and even the slightest weakness or failure can lead to significant damage to the entire system. At Ralph’s Transmission, we’ve seen every type of transmission damage you can imagine. ![]()
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