Tool Required VB-FIX Required
- 4-3 Neutral
- Delayed engagement
- No 2-3
- No lockup
- Slip codes
- Soft shifts under acceleration
A worn pressure regulator bore and/or valve.
The Sonnax kit salvages the worn valve body by restoring the hydraulic integrity of the pressure regulator circuit.
Oversized Pressure Regulator Valve Kit
- Inner Spring
- Outer Spring
Fits bores containing OE PR valve with .512" dia. spool only.
Excessive valve-to-bore clearance at the modulating pressure area allows modulated solenoid feed pressure to exhaust, reducing line pressure and creating shift-related complaints. Bore wear at the inner spool results in high line pressure conditions. The Sonnax kit 68942-07K salvages the valve body with an oversized hard-anodized valve and recalibrated springs.
- Outer spool has extended length for better support.
- Aluminum valve has been hard-anodized to prevent excessive wear.
- Valve spools have annular grooves to prevent wear due to side loading.
You need this if...
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.
Click here to view PDF if instructions do not appear below.
Valve Body Layouts
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