Loud clanking noise in gear if the clutch is not engaged

Throw out bearing on clutch is gone

Is the pedal soft ?

may need a new one or ajust--bring it to a specialist or honest mech-not a dealer

My first thought here is your drive shaft u joints, but only because I've been stranded more than once by these. The higher torque of second will definitely make a worn u-joint "clunk". with the window down listen carefully as you engage and release your clutch in 1st gear, if you here any "clunking" noise I would check your u-joints. To do this SAFELY;ie, using jack stand etc. get under your car and try to turn the drive shaft by hand with the car in gear. ANY play in the drive shaft is bad. I'm not sure if you meant you've changed your clutch and the pressure plate or you did change out you flywheel. either way whichever you did not change could definitely be warped.

The clutch pressure plate may have failed or the clutch plate may be worn to the rivets therefore not engaging the transmission. Either of these would be making a loud noise when the clutch is engaged. Another problem could be that the hydraulic fluid is low and not allowing the throwout bearing to engage the clutch. Get underneath the car and have someone push the clutch pedal down and make sure the arm that moves the throwout bearing is moving correctly.

throw-out bearing or diaphram going bad. is it hard to put in gear?

Sounds like you either chipped a tooth of one of the gears or something came loose inside. I would not drive it at all You could make it a whole lot worse if there is a good sized chunk of metal floating around in there. Take it to transmission shop or better yet have it towed!!! If whatever is in there lodges between a couple of the gears you will be spending a lot more money trying to get it repaired. Good luck!

Sounds like a throw out bearing or pressure plate problem. Run it by a trany shop, and they should be able to tell quick and easily if that's the problem.

Almost sounds like a throwout bearing problem. Either way, bring the car back and make them fix it. It will be covered under the warranty so dont let them try to convince you otherwise.

Sounds like the clutch through out bearing might be bad.Is it hard to shift?Does the pedal come up high befor the clutch engages?