Engine Error
P0734
Gear 4 Incorrect Ratio
Severity
High
Symptoms
No overdrive, high RPMs on the highway, transmission slips in 4th
Common Causes
- Overdrive band failure
- Faulty shift solenoid
- Dirty transmission fluid
- Worn valve body bores
How to Fix
- 1 Replace shift solenoid
- 2 Flush transmission fluid
- 3 Replace or rebuild valve body
- 4 Rebuild transmission
Estimated Repair Cost
USD
$150
–
$3000
Valve body repair: $500 - $1,000; Rebuild: $2,500+