* Shift linkage: This is the most common and often easiest to fix. Problems can include:
* Bent or broken linkage components: Rods, levers, or the shift tower itself could be damaged, preventing the transmission from selecting other gears.
* Loose or worn linkage: Bushings, bolts, or the Z-bar (if so equipped) may be worn, allowing play and preventing accurate gear selection. This can lead to the shift lever feeling "sloppy" or not engaging gears properly.
* Binding linkage: Something might be interfering with the linkage's movement, like debris, rust, or a misaligned component.
* Transmission internal issues: These are more serious and usually require professional attention:
* Broken or bent shift fork: This is a component inside the transmission that physically moves the gear into place. A broken or bent fork will prevent gear selection.
* Damaged synchronizers: Synchronizers help match the speed of the gears for smoother shifting. If damaged, particularly on the 2nd gear synchronizer, it could prevent the gear from engaging properly, or possibly even cause it to become stuck.
* Worn or damaged gears: Severe wear or damage to the 2nd gear itself could cause it to bind or not disengage properly.
* Shift rail problems: The shift rails guide the shift forks. Issues here can prevent proper gear selection.
* Fluid related:
* Low transmission fluid: While unlikely to *cause* it to be stuck in 2nd, very low fluid levels can certainly exacerbate existing problems and make shifting difficult or impossible.
* Incorrect transmission fluid: Using the wrong type of fluid can cause internal damage or affect shifting performance.
Troubleshooting Steps (in order of increasing difficulty):
1. Check the transmission fluid level: This is the easiest thing to check first. Low fluid is a problem that needs fixing regardless of the cause of being stuck in gear.
2. Inspect the shift linkage: Carefully examine all linkage components for damage, looseness, or binding. Look for bent rods, worn bushings, or anything out of place.
3. Try to shift while gently rocking the car: Sometimes, a bit of movement can help free up a stuck linkage. (Be extremely careful doing this to avoid further damage.)
4. If above steps fail: You will likely need a qualified mechanic experienced with classic Corvette transmissions to diagnose and repair the issue. Internal transmission problems require disassembly, and a misdiagnosis can lead to further damage.
It's crucial to avoid forcing the shifter. This could worsen the problem and potentially cause more damage to the transmission. If the car is stuck in gear, it's best to have it towed to a mechanic.
