Hyundai Elantra CN7: Troubleshooting - Manual Transaxle System - Hyundai Elantra CN7 2021-2024 Workshop ManualHyundai Elantra CN7: Troubleshooting

Troubleshooting
Symptom
Suspected Area
Remedy 
Abnormal noise
Oil level (Low)
To adding oil after inspect the parts (Oil seal, Drain plug, filler plug).
Oil (Wrong)
Replace the oil.
Synchronizer ring (Worn or damaged)
Replace the synchronizer ring.
Gear (Worn or damaged)
Replace the gear.
Bearing (Worn or damaged)
Replace the bearing.
Oil leak
Oil level (High)
Inspect the oil level.
Gasket (Damaged)
Replace the gasket.
Oil seal (Worn or damaged)
Replace the oil seal.
Hard shifting or impossible to shift
Oil (Wrong)
Replace the oil.
Clutch (Dragging)
Inspect the clutch parts (Concentric Slave Cylinder, Clutch disc)
Shift fork (Worn)
Replace the shift fork.
Synchronizer ring (Worn or damaged)
Replace the synchronizer ring.
Gear (Worn or damaged)
Replace the gear.
Hub sleeve (Worn or damaged)
Replace the hub sleeve.
Jumps out of gear or shift lever moves excessively
Shift fork (Worn)
Replace the shift fork.
Hub sleeve (Worn or damaged)
Replace the hub sleeve.
Gear (Worn or damaged)
Replace the gear.
Bearing (Worn or damaged)
Replace the bearing.

Specifications
Specifications Manual transaxle type FF 6th Manual Transaxle (M6CF3-1) Engine typeGasoline 1.6 T-GDIGear ratio1st3.3082nd1.9623rd1.2944th0.9765th0. ...