Mitsibishi colt 97 stuck in 1st gear

Once the freeplay is set it should not alter, the driven plate linings may have come loose or the pressure plate may have a broken spring. If so replace as a kit including the throw out bearing and spigot hearing.

the gear grinding noise is because the clutch plate is not fully disengaging and the input shaft is still driving. If you did not use the same length of push rod then the slave cylinder is not moving enough to disengage the clutch. Check it out that with the pedal on the floor the piston in the slave cylinder should be almost to the edge of the slave cylinder . That is where It should be to be working properly

You Have a broken shifting yolk inside the transmission

That cylinder is known as the clutch slave cylinder. It should push against the clutch fork every time the clutch pedal is depressed to allow gear changes. If it doesn't, suspect a faulty slave cylinder, or clutch master cylinder.

SECTION 308-00: Manual Transmission/Transaxle and Clutch - General Information 1998 Contour/Mystique Workshop Manual DESCRIPTION AND OPERATION Manual Transaxle and Clutch Manual Transaxle and Clutch - General Information This section covers general procedures for diagnosis and testing the clutch system. For additional information, refer to Section 308-01 . For specified clutch system service procedures. For additional information, refer to Section 308-02 . For a complete description of the manual transaxle. For additional information, refer to Section 308-03 .
The clutch system includes:

• Flywheel.
• Clutch disc.
• Clutch pressure plate.
• Clutch master cylinder.
• Clutch slave cylinder.
• Clutch release fork.
• Clutch release hub and bearing.

The clutch master cylinder transmits fluid pressure to the slave cylinder, which in turn moves the clutch release fork and the clutch release hub and bearing.
The clutch master cylinder uses brake fluid and shares a common reservoir with the brake master cylinder
The clutch is a single plate, dry-friction disc with a diaphragm-style spring clutch pressure plate. The clutch disc has a hub which is splined to the input shaft. The clutch disc has friction material where it contacts the flywheel and the clutch pressure plate. Torsion springs on the clutch disc help absorb the engine torque pulses. The clutch pressure plate applies pressure to the clutch disc, holding it tightly against the surface of the flywheel.
In the engaged position, the diaphragm spring holds the clutch pressure plate against the clutch disc, so that engine torque is transmitted to the input shaft. When the clutch pedal is depressed, the clutch release hub and bearing pushes the diaphragm spring center toward the flywheel. The diaphragm spring pivots at the fulcrum, relieving the load on the clutch pressure plate. Steel spring straps riveted to the clutch pressure plate cover pull the clutch pressure plate from the clutch disc, disengaging the engine torque from the transaxle and enabling the gears to be changed.
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Inspection and Verification - MTX-75
The following checks should be carried out before repairing or replacing the transaxle:
Poor gear shifting

1. Check the operation of the clutch: Lay a block of wood approx. 25 mm thick under the clutch pedal and depress the clutch pedal as far as the stop. If 1st or 2nd gear can be selected with no problem with the engine running and the parking brake applied, the clutch is OK. If the gear cannot be selected, repair the clutch.

1. Check the selector mechanism:
   • The free play in the gearshift lever must be no more than 15 mm.
     • If the gearshift lever free play is too great, check the gearshift cables and replace them if necessary.
   • If the gearshift lever free play is OK, adjust the gearshift linkage. For additional information, refer to Section 308-06 .

1. Check the transaxle fluid level and top up with Automatic Transmission Fluid ESD-M2C186-A if necessary.

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why my 2006 corolla car gearbox is stuck in third gear and cannot move

air in the hydraulic control system of the clutch release is the most likely cause here, have the clutch bled of air, that should cure the problem.

The problem sounds like the clutch. If you put it in 1st., then start it up, does it try to move with you foot on the clutch? Does the clutch pedal feel different than normal.

Either your clutch is getting bad, or you're shifting down too soon, and up too late. Try double clutching. Push in your clutch and push it into neutral. Release the clutch, fan the gas pedal, push the clutch again and shift into 1st. All this does is sychronize the speed of the transmission with the speed of the engine. There were, in the 60's, a lot of cars with the old "three on the tree" that you had to do this every time, and you get pretty good at it after a while.

Adjusted Clutch cable assembly under passenger side of vehicle. Had assistance from friend depressing clutch pedal and engaging shift lever. Problem went away