Hi have a 2006 Jaguar x350 2.7 TDVI, the car has done 130k when the car is warmed up i am getting a slight wobble vibration from 35-45 mph it does not do it all the time , it is not the wheels because i have had them balanced, i have put injector cleaner in to see if that cures it but it hasnt. you can sort of drive out the wobble with quick accelleration, if your nursing the pedal it seems more noticable. i dont know if it is on the gear change or speed dependant. anyone with any ideas please.

 

Fuel supply?
Check fuel pressure, if low replace the fuel filter first.

 

Thanks for your advice, will check that
out.

 

I had a wobble in my steering at certain speeds. I had the wheels balanced and the tracking checked and all was ok.. It turned out to be a warped front brake disc. You can check this by jacking up the car and rotating the front wheel. If you hear a noise that changes (comes and goes) whilst constantly rotating the wheel then you may have a warped disc.

 

Hi thanks for the advice, have already ruled these things out, the car runs fine from cold then after 15 min, it starts to vibrate and judder going through the gears from 35-50, when cold it goes through them smooth.

 

Ok great. I only mentioned checking for a warped brake disc as you stated a wobble so I presumed you meant in the steering. I think you have more of a vibration issue. I have a strange engine vibration at a certain rev range that is worse under load. I haven't been able to work out what the cause is but it looks like some sort of rich running problem, possibly caused by the manifold gaskets leaking. I'm not familiar with the diesel versions of our cars so unfortunately I can't give you an further pointers. I hope you manage to get to the cause of the problem.

 

Hi Thanks for your advice.