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Begin by checking the clutch linkage going to the transmission. See if there is anything broken that keeps the linkage from disengaging the clutch. Just have someone press in the clutch pedal while you look in the engine bay for moving parts. Make sure that all parts leading to the tranmission seem to be in good working order. I have a 1990 240sx that was doing the same thing when I bought it. It turned out that the clutch disc was sooooooo badly worn that it would no longer release. If the clutch is not releasing there are a few things it could be: Bad slave cylinder, bad master cylinder, broken release bearing fork or worn clutch disc. If you look under the car just behind the passenger side front tire and have someone push in the clutch pedal you should be able to see the slave cylinder push on the end of the release bearing fork. If it doesn't move then you have a nice cheap $40.00 half hour job ahead of you. Consider yourself lucky. If it moves and pushes on the release bearing fork the problem is internal and you'll have to pull the transmission. With two people and an okay assortment of hand tools this took us about four hours to pull the transmission, replace the clutch, pressure plate, release bearing and pilot bushing, then put the transmission back in. While you're in there inspect the release bearing fork and the flywheel, because the less you have to remove your transmission, the better life will be. As a side note, the old release bearing will have to be pressed off the throw out assembly, and the new one pressed on. A machine shop can do this for a nominal fee. Although this step will add some extra time to the process it is HIGHLY recommended to replace the release bearing with the new one that comes with the clutch kit. No matter how nice your old bearing may seem, if you put the car back together with the old bearing you'll be removing the transmission again in the near future. Good luck everyone, and if there's anything I left out, I apologize.

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Q: What do you do when the clutch won't disengage in a 93 240sx?
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