- Delayed Reverse
- Low line rise
- Soft shifts
Severe wear of the boost sleeve due to continuous valve oscillation allows EPC and Reverse boost oil leakage.
Install Sonnax valve and sleeve to restore hydraulic integrity.
Boost Valve Kit
Factory Style, No O-Rings
Vehicles with Ford E4OD and 4R100 transmissions frequently have problems with poor line rise and/or soft shifts. These complaints are often caused by severe wear of the pressure regulator boost sleeve, allowing EPC and Reverse boost oil leakage. Sonnax boost valve kit 36424-03K eliminates these problems.
- Sleeve manufactured from highly wear-resistant aluminum alloy
- Hardcoat anodized aluminum valve combats premature wear