Severe bore wear at the TC pressure regulator valve bore.
Oversize the bore and install the wear resistant sleeve, replacement valve and calibrated spring to re-establish correct converter oil pressure and cooler flow.
Severe wear of the TC pressure regulator valve bore results in leakage of converter release/lube/cooler oil pressure that compromises unit durability, resulting in damaged TCC linings, overheated converters and lube failures. The Sonnax kit 122892-10K salvages these valve bodies.
This kit also services Jatco FP series; Ford JF506E, FPH; Jaguar JF506E, FPD; Mazda JA5A-ELFPF1/FPF2; Rover JF506E, FPO; and Nissan ZY units.
Contact a Sonnax Parts Distributor.