I have a 19 plate ford transit connect and 2 weeks ago I had a new clutch, slave cylinder and master cylinder fitted after getting my van back the pedal is sticking to the floor, if I pump it like 10x it feels normal and drives normal but if I’m on a motorway it sticks to the floor like there is no pressure in the pedal
Apart from the sticking it drives okay and changes gears smooth, I did take it back to the garage and they said they don’t know what the problem is, I’m wondering if anyone has any ideas as to what the problem could be? And if there is a less expensive fix before I have to pay the garage to strip my van and look at it, thanks in advance !!

