- Issue with the transmission shifter linkage: The transmission shifter linkage connects the gear shifter to the transmission. If the linkage is loose or damaged, it can cause the shifter to pop out of gear.
- Worn or damaged transmission synchronizers: The synchronizers are responsible for helping to engage gears smoothly, minimizing any grinding noises. If the synchronizers are worn or damaged, they can slip, causing the transmission to pop out of gear.
- Low transmission fluid: When the transmission fluid level is low, there might not be enough pressure to properly engage the gears.
- Worn or damaged transmission gears: If any of the gears in the transmission are worn out or cracked, they could be slipping, popping the transmission out of gear.
Additional factors to consider:
- Driving habits: If you've been shifting too rapidly, that could put extra strain on the transmission, causing it to slip out of gear.
- Modifications: If you've modified your 3000GT's transmission, it could be a factor as well.
