722.6

Fits bores containing OE PR valve with .512" dia. spool only. Requires tool.

Symptoms:

• No 2-3
• 4-3 Neutral
• Soft shifts under acceleration
• Slip codes
• Delayed engagement
• No lockup

Cause:
A worn pressure regulator bore and/or valve.

Correction:
The Sonnax kit salvages the worn valve body by restoring the hydraulic integrity of the pressure regulator circuit.

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. Sonnax oversized pressure regulator valve kit 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.

Contents:

• Valve
• Inner Spring
• Outer Spring

SONNAX Installation Instructions