
SonnaxValve Kit
Part #: S34741EKDescription & Specs
In GM 4L80-E and 4L85-E units, the accumulator control valve controls shift firmness by managing accumulator back pressure. Wear at the valve or bore can lead to multiple symptoms, the most common being reduced line pressure in Reverse, elevated line pressure in Drive, and soft or harsh upshifts depending on location and magnitude of wear. When valve/bore wear allows cross-leakage of torque signal/boost oil to exhaust to the sump, line pressure drops causing soft shifts. Alternatively, when bore wear allows Drive oil to enter the torque signal passage, line pressure increases and shift feel hardens. Reconditioning the bore and installing Sonnax oversized accumulator control valve kit 34994-22K restores hydraulic integrity of this circuit to re-establish normal shift operation and performance. Upgrade '91–'96 4L80-E accumulator control valve to '97-later calibration Restore OE accumulator control valve response in '97-later units
Valve Kit; Accumulator Control, Oversized; Requires F-34994-TL22, T-VB-FIX
Name | Specs |
---|---|
Country of Origin (Primary) | US |
Package UOM | Each |
Quantity Per UOM | 1 |
Weight | 0.75 |
Weight UOM | Pounds |
Transmissions
Name | Years |
---|---|
4L80-E | 1991 - 1998 |
THM-R2/MT1 | 1991 - 1991 |
Vehicle Fitment
Years | Vehicle | Drive Types |
---|---|---|
1994 - 1998 | AM General Hummer | 4WD |
1997 - 1998 | Aston Martin DB7 | RWD |
1993 - 1998 | Bentley Turbo R | RWD |
1993 - 1998 | Bentley Continental | RWD |
1993 - 1998 | Bentley Brooklands | RWD |
1996 - 1998 | Bentley Azure | RWD |
1991 - 1991 | Chevrolet V3500 | 4WD |
1991 - 1991 | Chevrolet V2500 Suburban | 4WD |
1991 - 1991 | Chevrolet V1500 Suburban | 4WD |
1995 - 1998 | Chevrolet Tahoe | RWD, 4WD |
1991 - 1991 | Chevrolet R3500 | RWD |
1991 - 1991 | Chevrolet R2500 Suburban | RWD |
1991 - 1991 | Chevrolet R1500 Suburban | RWD |
1991 - 1998 | Chevrolet P30 | RWD |
1991 - 1998 | Chevrolet K3500 | 4WD |
1992 - 1998 | Chevrolet K2500 Suburban | 4WD |
1991 - 1998 | Chevrolet K2500 | 4WD |
1992 - 1998 | Chevrolet K1500 Suburban | 4WD |
1991 - 1998 | Chevrolet K1500 | 4WD |
1991 - 1996 | Chevrolet G30 | RWD |
1996 - 1998 | Chevrolet Express 3500 | RWD |
1996 - 1998 | Chevrolet Express 2500 | RWD |
1991 - 1998 | Chevrolet C3500HD | 4 X 2 |
1991 - 1998 | Chevrolet C3500 | RWD |
1992 - 1998 | Chevrolet C2500 Suburban | RWD |
1991 - 1998 | Chevrolet C2500 | RWD |
1992 - 1998 | Chevrolet C1500 Suburban | RWD |
1991 - 1998 | Chevrolet C1500 | RWD |
1991 - 1994 | Chevrolet Blazer | 4WD |
1992 - 1998 | GMC Yukon | RWD, 4WD |
1991 - 1991 | GMC V3500 | 4WD |
1991 - 1991 | GMC V2500 Suburban | 4WD |
1991 - 1991 | GMC V1500 Suburban | 4WD |
1996 - 1998 | GMC Savana 3500 | RWD |
1996 - 1998 | GMC Savana 2500 | RWD |
1996 - 1996 | GMC Savana 1500 | RWD |
1991 - 1991 | GMC R3500 | RWD |
1991 - 1991 | GMC R2500 Suburban | RWD |
1991 - 1991 | GMC R1500 Suburban | RWD |
1991 - 1998 | GMC P3500 | RWD |
1991 - 1998 | GMC K3500 | 4WD |
1992 - 1998 | GMC K2500 Suburban | 4WD |
1991 - 1998 | GMC K2500 | 4WD |
1992 - 1998 | GMC K1500 Suburban | 4WD |
1991 - 1998 | GMC K1500 | 4WD |
1991 - 1991 | GMC Jimmy | 4WD |
1991 - 1996 | GMC G3500 | RWD |
1991 - 1991 | GMC G2500 | RWD |
1991 - 1991 | GMC G1500 | RWD |
1991 - 1998 | GMC C3500HD | 4 X 2 |
1991 - 1998 | GMC C3500 | RWD |
1992 - 1998 | GMC C2500 Suburban | RWD |
1991 - 1998 | GMC C2500 | RWD |
1992 - 1998 | GMC C1500 Suburban | RWD |
1991 - 1998 | GMC C1500 | RWD |
1992 - 1996 | Isuzu NPR | 4 X 2 |
1993 - 1996 | Jaguar XJS | RWD |
1994 - 1996 | Jaguar XJ12 | RWD |