Can anyone help, i've got a 2.0 20v marea and in the past week or two been having intermittant gear selection problems, it does not matter what speed i'm doing or which gear i am going for, it seems the clutch is heavy and the gears will not no matter what i do go in, what i have found is that with a couple of pumps of the clutch i can usually get the gear eventually. This can happen maybe for five minutes then everything is fine. any suggestions please . . .