Line Pressure Diagnosis
If the line pressure is low at idle in all ranges check the following items:
- Low fluid level
- Restricted inlet filter
- Loose main body
- Solenoid body or accumulator body to case bolts
- Excessive leakage in pump
- Case
- Control bodies
- Sticking main regulator valve or damaged inlet tube seal on inlet filter
- Damaged gaskets or separator plate
If the line pressure is high at idle in all ranges then check the following items:
- Main regular valve
- Solenoid body and wiring harness
- Run QUICK TEST .