Definition of Terms

The following definitions are being provided to establish a common language and assist users in describing transaxle related conditions. Some of these terms or conditions are used.

SHIFT CONTROL RELATED
Binding-a shift condition where a driver feels resistance/light friction when shifting into gear.
Cold gear clash-a grinding/growling sound that is made when attempting to shift into gear during cold conditions.
Double bump-a shift condition where a driver experiences two separate peak loads when shifting into gear.
Gear clash/grinding-a grinding/growling sound that is made when attempting to shift into gear. Usually caused by a worn blocking ring or blocking ring spring.
Gear rattle-a rattle that usually occurs at engine lugging conditions or low idle speeds with the transaxle in neutral and the clutch engaged.
Hard shift (dynamic engine running)-difficulty in shifting when vehicle is in motion.
Hard shift (static engine off)-difficulty in shifting when vehicle is not moving.
Hop-out-condition where transaxle will consistently disengage from gear without operator assistance.
Intermittent hop-out-condition where transaxle will periodically disengage from gear without operator assistance.
Spline lock-a "scallop" feature machined alternately in the internal spline of the synchronizer sleeve designed to engage with the gear (clutch teeth) to prevent hop-out.

NOISE CONDITIONS
Final drive noise-a howl/whine related to vehicle speed and is noticeable in all gears.
Gear noise-a whine that is due to gear contact that is related to a certain gear and vehicle speed. The noise disappears after an upshift. The noise is usually "gear profile" related.
Gear clicking noise-ticking noise observed on every rotation of a gear pair that is usually caused by a "nick" or "ding" on a gear tooth.