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You may notice a torque converter whine when the vehicle is stopped and the transmission is in Perform a stall test to make sure the noise is actually coming from the converter: 1. Place your foot on the brake. 2. Put the gear selector in DRIVE. 3. Depress the accelerator to approximately 1,200 RPM for no more than six seconds. A torque converter noise will increase under this load. Torque Converter Clutch Shudder The key to diagnosing TCC shudder is to note when it happens and under what conditions. TCC shudder which is caused by the transmission should only occur during the apply or the If Shudder Occurs During TCC Apply or Release If the shudder occurs while the TCC is applying, the problem can be within the transmission or Something is not allowing the clutch to become fully engaged. Something is not allowing the clutch to release. The clutch is releasing and applying at the same time. One of the following conditions may be causing the problem to occur: Leaking turbine shaft seals A restricted release orifice A distorted clutch or housing surface due to long converter bolts Pump whine will vary with line pressure. NOTE: You may damage the transmission if you depress the
2007 Hummer H3 2007 TRANSMISSION Automatic Transmission - 4L60-E/4L65-E/4L70-E - H3
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