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Went to start the Firenza it is a 2000. When the clutch is pressed down and the engine is running i can not select any gears . When engine turned off i can select gears. Is it the clutch ?

Yes you need a clutch

I thought so . But no warning was fine before parked up

Probably just a sticking clutch

BobbyMel wrote:Probably just a sticking clutch

yes will have a go in starting it in 4th gear. That what the manual says after warming it up a bit

I have a rather cruel way but it seems to work - get it warm and press the clutch in and go for reverse

Think Fred's right there. Sticking clutch plate by the sounds of things.
Foot on the clutch pedal, start her up and get it warm, put it in to gear, first or reverse , rev it and let the clutch go suddenly. Usually cracks the disc away from the clutch face.
Warning though!! make sure there is no one in front or behind, whichever way you do it!!
One other problem with this brutal method is it can snap half shafts in the rear axle if seriously stuck!!!
Good luck with it.

Thanks will have a go in the morning and update )

No luck releasing the clutch so will take it to the garage to have it looked at. Is it worth replacing the clutch release bearing at the same time ?

edgoose1 wrote:No luck releasing the clutch so will take it to the garage to have it looked at. Is it worth replacing the clutch release bearing at the same time ?

If you have the engine and gearbox split - absolutely change it! (assuming the new ones are of decent quality)