Ford
Incorrect 6th gear ratio: the gearbox is slipping in 6th. On 10R80 Ranger/Everest often valve body or converter related.
P0729 fault code: what it means
P0729: Incorrect 6th gear ratio: the gearbox is slipping in 6th. On 10R80 Ranger/Everest often valve body or converter related.
Usual causes, most likely first
- valve body pressure loss
- torque converter slip
- worn clutches
P0729 by make
What the repair usually costs
- Torque converter replacement (auto / CVT, gearbox out)NZ$1,410–NZ$3,110 · A$1,390–A$3,040
Not sure what P0729 means on your car? Ask Credov.
Before you clear it
Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.
Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.