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P0734 — Gear 4 Incorrect Ratio

4th gear ratio incorrect.

Severity: HighRepair: $100-$4,000+Difficulty: Advanced

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Common symptoms of P0734

Common causes of P0734

Repair cost & difficulty

Typical cost to fix P0734: $100-$4,000+ · Difficulty: Advanced

Pro tip: Usually means significant internal transmission wear.

Vehicles commonly affected

All makes

Related trouble codes

P0730P0733P0735

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ScanFixAI is a diagnostic aid, not a substitute for professional repair. Cost estimates are typical ranges and vary by vehicle and region.