If there isn’t enough it can’t do its job. Transmission fluid is the lifeblood of the transmission and the torque converter bolted to it. There are many different things that can cause your Grand Cherokee to have torque converter problems. It can tell you a lot about the health of your transmission in general.Ĭauses of Torque Converter Problems: Jeep Grand Cherokee Taking a look at the transmission fluid should be the first thing that you do. If your Grand Cherokee has bad transmission fluid, it can cause the torque converter to go bad. This fluid helps cool the converter and transfers energy. Like your automatic transmission, the torque converter is full of transmission fluid. 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. This shudder feels like a manual transmission when you need to downshift.Ī bad torque converter will often make strange sounds. If the torque converter fails to unlock at lower speeds, it shudders. It won’t do this at lower speeds so your Grand Cherokee can take advantage of the torque multiplication that a torque converter provides. Torque converters use a lock up clutch to create a true 1:1 connection between the engine and the wheels. When this happens, your torque converter has a higher effective stall speed. This keeps your Grand Cherokee’s engine from turning at the right RPM for any given speed, which can really hurt fuel economy. If the torque converter has gone bad, then it’s no longer transferring power to your Grand Cherokee’s rear wheels in an efficient manner. This increases the fuel mileage achieved and brings an automatic transmissions efficiency more in line with a standard transmission. This eliminates operating inefficiency when it is at high speed (usually after about 45 miles an hour). A locking converter has clutches in it that lets the transmission make a physical connection with the engine. Nearly all modern automatic transmissions have a locking torque converter. More Info: Grand Cherokee Transmission Slipping Diagnosis If you suspect this is happening with your car, has your fuel mileage changed? This is often a sign that the transmission isn’t operating efficiently. When a torque converter is malfunctioning it can cause this stall speed to change and feel like the transmission is slipping. The torque converter “stall speed” is the speed that the engine needs to be turning before the torque converter will begin engaging the transmission. Here are some of the most common bad torque converter symptoms that could happen to your Grand Cherokee. Symptoms of a bad torque converter include a vibration, too much RPM on the highway, and slipping.īad Torque Converter Symptoms: Jeep Grand Cherokee In the Jeep Grand Cherokee, a bad torque converter is often caused by bad transmission fluid, worn clutches, bad seals, or loose bolts. Your Jeep Grand Cherokee’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.
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