Hi all I'm in need of some help! My car won't go into 4th gear, every other gears fine just feels like it's being blocked by something. Took it to the garage he checked the gearbox and nothing was wrong that end then check the linkages and they are worn down as the gear stick was very wobbly so thought it could be that and had that installed today took it for a test drive and was perfect then just this second on my way home wouldn't go back into 4th lol. Is there anything else that could stop it from going into 4th maybe cables? It's a 2002 147 2.0 Ts manual.