Gearbox Slips Between 5th And Fourth

[Guest maxton]

Ford Galaxy 1.9 turbo Diesel Auto 115 psi When going along a road at about 30 to 40mph and when putting foot down hard on the accelerator the car revs seem to go round to the red line before anything happens I have been told this is a problem with the gears on an Auto box not meshing and could need a new part costing

[NikpV]

despite having an auto I'm not sure how it all works but isn't this handled by the 'kickdown', on this box which has sports mode actuated by a fast depression of the accelerator this should product a drop in gear and then the box will hold that lower gear for longer before changing up it sounds like you are gettiing sports mode but no kickdown - I thought that was handled by a simple switch but I'm often wrong :16:

[Grumpy]

This sounds horribly like a slipping gearbox rather than kick-down. Does the car accelerate hard when this happens or not? There is a fault with the auto box on the diesels but I would have hoped by the 03 model they would have sorted it.

 

Put the car in tiptronic (the gear selected is displayed on the dash [it is on mine anyway]) and select 4th or 5th then accelerate hard but not right down (to avoid kick-down), if the gearbox is slipping then the revs will rise to the redline without the gear display changing. If this happens then it could be a major re-build required.

 

From what I understand, the gears in an auto box are always in mesh, a number of clutches are used to engage and dissengage each gear.