Tag
#torque converter
3 posts in Car Diagnostics blog about "torque converter" — OBD-II diagnostics, DTC codes, repair. ← All posts
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Surging at a constant speed: fuel trim, torque converter or EGR
A gentle rhythmic pulsing at a steady cruise, with your foot still. The frequency of the pulse points at which system is hunting.
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P0740 and P0741: torque converter clutch circuit and stuck-off faults
The converter clutch is what turns a slushbox into a direct drive at cruise. When it stops locking, fuel consumption rises, the gearbox runs hot and these two codes appear.
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Torque Converter Diagnostics via OBD-II: P0741, TCC Slip, Live Data
How to diagnose automatic transmission torque converter through OBD-II: P0741 TCC lockup slip, P0740 solenoid, Live Data slip percentage — step-by-step without disassembly.