- 1-2 Bang at light throttle
- 3-4 Bump
- Bang shifts
- Harsh shifts
- Reduced 2-4 band life
- Soft shifts
Deterioration of accumulator valve sleeve allows critical throttle, line and/or accumulator pressure loss.
Recover hydraulic control and renew shift operation by installing Sonnax accumulator valve sleeve.
DX Code Accumulator Valve Sleeve
This sleeve can only be used to replace OE sleeves with DX code.
Various shift concerns are common in vehicles equipped with GM 4L60-E, 4L65-E or 4L70-E transmissions. This can often be caused by wear at the accumulator valve sleeve. Throttle pressure, line pressure or accumulator pressure may leak past wear pockets in the sleeve, creating harsh/soft or bang shifts. Installing Sonnax DX code accumulator valve sleeve 77754-45 corrects excess wear for revived shift operation and feel.
- Direct replacement sleeve
- Renews accumulator action and quells leaks
OE valve and spring must be reused with Sonnax sleeve.
"DX" code sleeves deliver firmer shifts than OE "AX", "BX" and "CX" Code designs.