Jaguar XJ-Series Forum : “loss of cruise control”

loss of cruise control

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My 98 XJ8 cruise control will disengage when the engine is not
pulling - such as at the top of a hill. It then has no memory when
I try to resume the speed. It will stay engaged as long as I'm
going uphill, even for miles. Then it never fails to turn off when
I coast or let off throttle. Any ideas? Thanks.
--Recent fault codes may not be related: P1227,P1643