Jaguar Repair Problems? Ask a Jaguar Repairs Expert.
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I have seen components like the transmission pressure control/regulating solenoid cause this type of fault here needing replaced as well as the throttle position sensor sending false signals causing the shifting back and forth.If the speedometer is jumping around when this occurs this can be a fault with the vehicle speed sensor but if the speedometer is not jumping around then I suspect the throttle position sensor or pressure control/regulating solenoid at fault needing replaced.
I would have the fault codes read out/checked with a compatible scan tool to see what codes are set and any codes set will help diagnose and locate this issue.The scan tool can also be used to monitor the throttle position sensor to see if it is faulty needing replaced.
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