Product Description
Recommended Tooling: 154740-TL22
GM 8L45 and 8L90 units may have TCC apply and release problems. Bore wear or a stuck converter feed limit valve can result in converter overheat, incorrect TCC apply or release, inadequate lube and cooling and converter over-pressurization. Installing Sonnax drop-in converter feed limit valve kit 154740-19K will restore proper valve function, resulting in proper TCC apply and release, regaining control of lube and cooling.
- Hardcoat anodized aluminum valve combats premature wear
- Annular groove helps center the valve in sleeve
- Sleeve adds valve support to resist wear
- Drop-in Zip Valve™ parts install quickly and easily
Contents
- Sleeve
- Valve
- Spring
Note: OE vacuum testing at the inboard spool requires converter feed limit vacuum test tool 154740-TL22.
Symptoms
- Code P0218
- Code P0741
- Overheated converter
- Inadequate lubrication
- Excess converter pressure
- High TCC slip RPM
Cause
Converter feed limit bore wear or stuck converter feed limit valve can result in overheat, incorrect TCC apply/release, inadequate lube and cooling and other problems.Correction
Recover hydraulic control and renew TCC and lube performance by installing the Sonnax drop-in converter feed limit valve kit.
