Question about 2001 Jaguar XJ8

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Transmission clonks into drive ocassionally

Hi there, I recently brought a 2001 xj8 exec, it is in suberb condition and low millage at 68k. It has started to, for want of a better description clonk into gear when sellecting drive. I suspect the rear diff but am not sure has anyone any expecience of this kind of problem, if so what is the likely cause before I take it into a garage and if any ideas what's it likley to cost.

Thanks

Taran

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XJ diffs are known to leak from the nose seal, get the level checked.

If its been runing empty for a while damage may have already been done.

If you brought the car used, there may well have been acidental damage caused either by hitting the rear wheels into a kerb or by shifting badly.

Also the suspension is very sophisticated & therefore complex, this is why Jaguars have such a nice ride AND handle so well, but because of this any number worn bushes, bearings or joints could cause a `clonk` or even several differnt components.

I`d recomend getting hold of an exploded diagram of the rear suspension & diff, then putting the car over a `pit` & for someone to be underneath listening & watching as you go from park to drive to reverse until the fault is located.

Do this in a well ventilated area & in a proper pit (not on ramps or on a jack).

Best of luck.

Posted on Dec 13, 2008

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I would check the universal joints front and rear on the drive shaft first. They are " greased for life " what usaully happens is the grease gets washed away and the needle bearings in the caps wear and become sloppy causing a clunk when the car goes into gear. If its front wheel drive I would suspect a bad cv joint.

Posted on Dec 09, 2008

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