FixVault

Problem Symptoms Table

Front Differential (for 4WD) 

PROBLEM SYMPTOMS TABLE - FRONT DIFFERENTIAL (FOR 4WD)

Symptom Suspected area See
Noise in front differential Oil level (Low or wrong grade) DIFFERENTIAL OIL 
Ring gear or drive pinion (Worn or chipped) DISASSEMBLY 
Backlash adjustment (Incorrect) INSPECTION 
Preload adjustment (Incorrect) INSPECTION 
Tooth contact between ring gear and drive pinion (Incorrect) INSPECTION 
Bearing (Worn) DISASSEMBLY 
Oil leak from front differential Oil level (Too high or wrong grade) DIFFERENTIAL OIL 
Oil seal (Worn or damaged) DISASSEMBLY 
Seal packing (Damaged) DISASSEMBLY 

Rear Differential (for 4GR-FSE) 

PROBLEM SYMPTOMS TABLE - REAR DIFFERENTIAL (FOR 4GR-FSE)

Symptom Suspected area See
Noise in rear differential Oil level (Low or wrong grade) DIFFERENTIAL OIL 
Ring gear or drive pinion (Worn or chipped) DISASSEMBLY 
Backlash adjustment (Incorrect) INSPECTION 
Preload adjustment (Incorrect) INSPECTION 
Tooth contact between ring gear and drive pinion (Incorrect) INSPECTION 
Bearing (Worn) DISASSEMBLY 
Oil leak from rear differential Oil level (Too high or wrong grade) DIFFERENTIAL OIL 
Side gear shaft oil seal (Worn or damaged) REPLACEMENT 
Seal packing (Damaged) DISASSEMBLY 

Rear Differential (for 2GR-FSE) 

PROBLEM SYMPTOMS TABLE - REAR DIFFERENTIAL (FOR 2GR-FSE)

Symptom Suspected area See
Noise in rear differential Oil level (Low or wrong grade) DIFFERENTIAL OIL 
Ring gear or drive pinion (Worn or chipped) DISASSEMBLY 
Backlash adjustment (Incorrect) INSPECTION 
Preload adjustment (Incorrect) INSPECTION 
Tooth contact between ring gear and drive pinion (Incorrect) INSPECTION 
Bearing (Worn) DISASSEMBLY 
Oil leak from rear differential Oil level (Too high or wrong grade) DIFFERENTIAL OIL 
Side gear shaft oil seal (Worn or damaged) REPLACEMENT 
Seal packing (Damaged) DISASSEMBLY