TCC reg.v. OS 6T40 GM

TCC reg.v. OS 6T40 GM Regulator Valve Shuttle Valve End Plug Spring O-ring Lengthened spools for additional bore contact and support Hardcoat anodized aluminum valves combat premature wear Annular grooves help center valves in bore to reduce future side-load wear Symptoms: Code 742 Code P0741 Harsh TCC apply Loss of fuel economy Low TCC apply pressure No lockup Overheated fluid & TCC lining TCC slip Cause: Bore wear at the TCC regulator valve reduces TCC apply and converter charge pressure. If valve sticks, TCC slip or harsh apply will result. Correction: Recover hydraulic control and renew TCC performance by reconditioning the bore and installing Sonnax oversized TCC regulator valve kit. Required tool: F-144740-TL16