Question about Pontiac Grand Am
Its the torque circuit but i would be able to help more if you provided year and model.With the torque convertor clutch stuck on, the torque convertor is not disengaging causing the bucking. There is a constant TCC apply. It means you probably have a defective TCC solenoid or TCC-PWM solenoid on the valve body. To correct the problem one of them needs to be replaced.
Posted on Mar 26, 2011
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Posted on Jan 02, 2017
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