* Transmission linkage problems: This is the most common and often easiest to check. The linkage connects the gear shifter to the transmission. Worn-out or broken parts in this system (cables, rods, bushings) can prevent the transmission from shifting correctly. Inspect for broken or loose components, and check for proper cable adjustment.
* Shift fork problems (internal transmission): The shift forks are internal components that physically move the gears within the transmission. Wear, bending, or breakage can prevent shifting into higher gears. This is a more serious problem requiring transmission repair or replacement.
* Transmission fluid issues: Low, dirty, or incorrect transmission fluid can cause shifting problems. Check the fluid level and condition. If it's low, add the correct type of fluid (consult your owner's manual). If it's dirty or burnt, it needs to be flushed and replaced.
* Clutch problems (if it's a manual transmission): If your Tempo is a manual, a problem with the clutch – a worn-out clutch disc, pressure plate, or throw-out bearing – could prevent proper gear engagement. You'd likely experience other symptoms with a clutch issue, such as slipping.
* Internal transmission problems: More significant internal transmission problems, such as worn synchronizers, broken gears, or other internal damage, could be the cause. This would require a professional transmission diagnosis and repair.
What to do:
1. Check the transmission fluid: This is the easiest and quickest check. Low or dirty fluid is a common cause of shifting problems.
2. Inspect the linkage: Carefully examine the linkage components for any visible damage or looseness.
3. Try shifting gently and firmly: Sometimes, a forceful shift can overcome a minor sticking point in the linkage. However, don't force it if you feel resistance.
4. Consult a mechanic: If you've checked the easy things and the problem persists, you'll need a qualified mechanic to diagnose the issue properly. They have the tools and expertise to identify the problem and perform the necessary repairs, whether it's a simple linkage adjustment or a major transmission overhaul.
Attempting significant repairs yourself without experience could worsen the problem and potentially lead to more costly damage. Getting a professional diagnosis is highly recommended.
