P0742 fault code: what it means

P0742: Torque converter clutch stuck on. Engine may stall when stopping.

Engine and gearbox (powertrain) · Costly if missed

Usual causes, most likely first

sticking TCC solenoid
valve body
contaminated fluid

P0742 by make

Ford

Torque converter clutch stuck on. Engine may stall when stopping.

Usual causes: sticking TCC solenoid; valve body; contaminated fluid

Holden

Torque converter clutch stuck on.

Usual causes: TCC solenoid; valve body

Hyundai

Torque converter clutch stuck on. May stall when stopping.

Usual causes: sticking TCC/damper clutch solenoid; valve body; dirty fluid

Isuzu

Torque converter clutch stuck on.

Usual causes: TCC solenoid; valve body

Kia

Torque converter clutch stuck on. May stall when stopping.

Usual causes: sticking TCC/damper clutch solenoid; valve body; dirty fluid

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 P0742 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.