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Problem Symptoms Table

WARNING: This page is about a different car, the 2007 Lexus IS 250. However, it is still accessible from the selected car via links, so may be relevant.

Use PROBLEM SYMPTOMS TABLE  to help you find the cause of the problem. The numbers indicate the ranked order of probability of each of the possible causes. Check each part in order. Replace parts as necessary.

MANUAL TRANSMISSION SYSTEM: 

PROBLEM SYMPTOMS TABLE

Symptom Suspected area Reference
Abnormal noise Oil level (Low) REPLACEMENT 
Oil (Wrong) ON-VEHICLE INSPECTION 
Gears (Worn or damaged) DISASSEMBLY 
- INSPECTION 
- INSPECTION 
- INSPECTION 
Bearings (Worn or damaged) DISASSEMBLY 
- INSPECTION 
- INSPECTION 
- INSPECTION 
Oil leakage Oil level (High) ON-VEHICLE INSPECTION 
Gasket (Damaged) DISASSEMBLY 
Oil seal (Worn or damaged) REPLACEMENT 
- REMOVAL 
O-ring (Worn or damaged) DISASSEMBLY 
Hard shifting or will not shift Synchronizer ring (Worn or damaged) INSPECTION 
- INSPECTION 
- INSPECTION 
Shift key spring (Damaged) INSPECTION 
- INSPECTION 
Jumps out of gear Locking ball spring (Damaged) DISASSEMBLY 
Shift fork (Worn) INSPECTION 
- INSPECTION 
Gears (Worn or damaged) DISASSEMBLY 
- INSPECTION 
- INSPECTION 
- INSPECTION 
Bearings (Worn or damaged) DISASSEMBLY 
- INSPECTION 
- INSPECTION 
- INSPECTION