• Delayed engagement
• Low line pressure
• No movement until RPM increased
• Pump noise

The pump flow control canister and plunger valve wear, allowing the plunger valve to stick open and/or leakage to occur. The canister o-ring relaxes and pressure bleeds past it.

This drop-in-place assembly includes a harder canister with more support for the plunger valve, which prevents sticking. The assembly also includes a case-hardened plunger valve with self-centering annular groves, a replacement spring, and larger O-ring for improved sealing.

Additional Resources