Engine Error
P0731
Gear 1 Incorrect Ratio
Severity
High
Symptoms
Transmission slips in 1st gear, harsh shift into 2nd, slow acceleration from stop
Common Causes
- Low transmission fluid
- Defective 1st gear shift solenoid
- Internal mechanical failure (worn 1st gear clutch)
- Clogged transmission filter
How to Fix
- 1 Top off transmission fluid
- 2 Replace shift solenoid for 1st gear
- 3 Change transmission fluid and filter
- 4 Overhaul transmission
Estimated Repair Cost
USD
$150
–
$3000
Solenoid and fluid: $250 - $500; Transmission overhaul: $2,000+