1. Check the transmission fluid. If the transmission fluid is low, it can cause the gears to slip. Make sure the fluid is at the proper level and that it is clean and free of debris.
2. Check the shift linkage. The shift linkage is what connects the shifter to the transmission. If the shift linkage is damaged or loose, it can cause the gears to slip. Make sure the shift linkage is properly connected and in good condition.
3. Check the transmission mount. The transmission mount is what holds the transmission in place. If the transmission mount is damaged or loose, it can cause the transmission to move around, which can cause the gears to slip. Make sure the transmission mount is in good condition and that it is properly secured.
4. Check the clutch. If your Avenger has a manual transmission, the clutch is what engages and disengages the transmission from the engine. If the clutch is worn or damaged, it can cause the gears to slip. Make sure the clutch is in good condition and that it is properly adjusted.
5. Have the transmission inspected by a qualified mechanic. If you are not sure what is causing your Avenger to shift gears, it is best to have it inspected by a qualified mechanic. They will be able to diagnose the problem and recommend the appropriate repairs.
