Low Line Pressure
1. Cross channel air leak body to cover or body to case gasket at pump.2. Pressure regulator valve stuck or reverse boost valve at low torque signal due to dirty or undersized bore.
3. Excessive valve clearance in pump valve bores due to use.
4. Cross channel leaks or cross valve land leaks at valve body.
5. Gaskets/spacer plate damaged or missing.
6. Force motor stuck on, broken clip causing leakage, pinched wire to ground or screen missing.
7. PCM module failure.