1991 nsx suddenly clutch became floppy and fell to the floor. gears won't change. fluid levels ok. engine runs ok no warning lights. had to be towed. 40,000 miles on car, no mods. can raise the pedal with my hand, it falls back down. Help!!!! Larry in Ga
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You may have to bleed the slave cylinder to get it to work. Bleed it just like brakes-pedal going to floor, open valve. Close valve, pump pedal and pedal to floor again with bleed valve open. When fluid comes out in steady stream with pedal pressed, done. Watch the plunger on the slave cylinder when clutch is pressed-it should move out to move the clutch lever.
Can be broken spring on the cluch pedal in side the car, that hold the pedal all the way back for full amount of brake fluid to the slave cylender, can be checked by pulling the pedal all the way up before steping it to the floor and putting in to gear or just look up under the daschbord on the pedal.
Can allso be to little brake fluid in container.
To check the master cylender rubber, step on the pedal putt in gear with engine running and wait with pedal all the way to the floor, if the rubber is gone the car wil start to go after some time (1/2-1 min or less)
To check the slave cylender rubber will be dune the same way and working same way but it will be leaking out and on the floor.
There is a return spring that lifts the clutch pedal back to the original position. It seems that the clutch return spring has got disconnected. The pedal will do its job of disengaging the engine from the gear box, but will not offer any resistance to the foot and thus give an impression of doing nothing. So, that spring should be set right. For this the clutch housing will have to be opened and the spring reset.
you mean the clutch pedal? when asking questions it helps to tell which engine, trans, 4wd, 2wd, which pedal, what you have checked, ect......... ck the clutch fluid level ,you will need to replace the clutch master and slave cylinder, the trans will have to come out.
Air in the system. The shave is between the engine and trans and even a small leak won't show up. Look in the rubber piece on trans with a light and see if you see any fluid. If you see any then the slave is starting to fail.
prob has little to no clutch fluid, to check this open the bonnet, in the engine bay next to the brake master cylinder there is a round clutch master cylinder, unscrew the cap and topp it up with brake fluid.
If the system has run dry you may need to bleed the system, if not completly empty should be able to pump it a few times and will come good.
If this is the case there is a leak somewhere...