Kickdown switch not working....is this common?
Discussion
I'm seeing a mechanic in a few days, but Jaguar people I have spoken to seem to be of like mind that ,like you, don't thimk the car has an actual switch, and that I will find that it is a computer generated problem. I haven't had a lok because I am a mechanical moron and wouldn't know where to look or what to look for but thank you for your response.
One thing you could try.
Have somebody push the throttle right down to the floor, then check the throttle position sensor on the throttle body - that's the black bit with the other end of the throttle cable attached to it - is as far round as it will go. If not the cable has stretched or a retaining clip has failed. There was a TSB about clip failure on V8 XJs years ago.
You may need a throttle reset. If this is out you'll loose the part throttle downchange under medium/higher loads and the car will struggle along in 5th when it really should be drop down to 4th or 3rd. Properly set up you should be able to choose whichever gear you want that the cars road speed will allow by simply changing the throttle pedal position. If it's out resetting it will transform the car and improve fuel economy too.
Have somebody push the throttle right down to the floor, then check the throttle position sensor on the throttle body - that's the black bit with the other end of the throttle cable attached to it - is as far round as it will go. If not the cable has stretched or a retaining clip has failed. There was a TSB about clip failure on V8 XJs years ago.
You may need a throttle reset. If this is out you'll loose the part throttle downchange under medium/higher loads and the car will struggle along in 5th when it really should be drop down to 4th or 3rd. Properly set up you should be able to choose whichever gear you want that the cars road speed will allow by simply changing the throttle pedal position. If it's out resetting it will transform the car and improve fuel economy too.
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