My 2008 Toyota RAV4 with 200,000 kilometres has developed a shimmy/shudder/vibration in 60 km/h. Toyota replaced the drive shaft and said it had been the universals — such as hanger bearing — but there was no change. Under speed, although it happens after the transmission changes to fourth and the level off or it goes off, if changed down to next. — Val
Given the conditions that you describe and the repair the Toyota dealer has finished, I guess the problem is about the torque convertor and its corresponding of the transmission.
To put it simply, the torque converter is that the coupler within the transmission which transfers the force in the motor.
Lock-up is intended to allow for a direct mechanical connection between the motor and transmission, controlled by the car’s transmission control module (TCM).
The TCM will apply torque convertor. The issue may have a easy fix, as Toyota does have software upgrades for a lot of its vehicles under the heading “Torque convertor flex lockup shudder.” If software doesn’t provide an improvement, then its DSL located within the valve of the transmission body is going to need to be examined by an experienced transmission repair shop.
In 200,000 kilometres, you need to be ready for a problem like torque convertor failure, which means a rebuild. Start easy with software upgrade and a change at your dealer and hope for the best.
Lou Trottier is owner-operator of All About Imports in Mississauga. Have a question about repair and maintenance? E-mail, putting “Lou’s Garage” in the Topic area
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