My landrover judders as if i accelrate at once from 40 to 60 mph what could be the problem

If only in first gear, it is most likely the first gear clutch or band going bad.

run the fault codes. check for loose missing vacuum hoses including any that control the vents.

Change spark plugs

Clean MAF Sensor

Replace front oxygen sensors if over 100,000 miles


Change gas & air filter every 3years

A mechanic would check for fuel pressure and trouble codes in the computer.

problem is electronic but exactly what i have no idea without my head under the bonnet ,try the dealer as it may be cheaper in the long run

More info on vehicle needed. Engine size? Mileage?

Likely, timing chain.

Most likely nothing mechanically wrong in the gearbox but check the transmission fluid level and top up if low. Also if low, check for site of leak to remedy it. Judder says to me 'imbalance' or an under damped spring. Does the judder emanate from one end (transmission) or one side (wheel) predominantly. Has the judder manifested itself just on its own or is it after having had some work done to the car.
Check wheels for balance - could be a balance weight has been lost, at the same time check the action of the shock absorbers. Check the rear engine/gearbox mount for integrity; its towards the rear of the gearbox and sits on a transmission tunnel cross-member . Now check the front prop to gearbox doughnut coupling, then the central bearing and finally the rear prop to differential doughnut coupling; all should be sound. Signs of splitting of the rubber around the bolt mounts in the doughnuts or a lot of lateral play in the central bearing are indicators for renewal.

I have a 2006 Jaguar 2006 which has been serviced recently. The problem I have is when I get to 65 mph plus, the car starts juddering. This is not through the steering wheel and I have had the wheels balanced and aligned. Any ideas ?

cheapest --try plugs and leads --dont work try coil pack