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Home >> Acura >> 2009 >> MDX V6-3.7L >> Repair and Diagnosis >> Powertrain Management >> Transmission Control Systems >> Testing and Inspection >> Symptom Related Diagnostic Procedures >> Late Shift After Shifting From N to R, or Excessive Shock When Shifting

Late Shift After Shifting From N to R, or Excessive Shock When Shifting




Late shift after shifting from N to R, or excessive shock when shifting

Diagnostic Procedure:

1. A/T clutch pressure control solenoid valve C defective

2. Shift cable broken or out of adjustment

3. Connection between shift cable and transmission or body is worn

4. ATF temperature sensor defective

5. Reverse CPC valve defective

6. Foreign material in separator plate orifice

7. ATF strainer clogged

8. 5th clutch defective

9. Clutch end plate clearance incorrect

Also check for:

- Check for a stored DTC, and check for loose connectors.
- Inspect the O-ring, and check the shift solenoid valve for seizure.
- Inspect the A/T clutch pressure control solenoid valve body gasket and ATF feed pipes for wear and damage. If the A/T clutch pressure control solenoid valve is stuck, inspect the CPC valves.
- Check for a loose shift cable at the shift lever and the transmission control lever.
- Check the 5th clutch pressure.
- Check the ATF strainer for debris. If the strainer is clogged, find the damaged components that caused the debris.
- Inspect the clutch piston, clutch piston check valve, and O-rings. Check the spring retainer for wear and damage. Inspect the clearance between the clutch end-plate and the top disc. If the clearance is out of tolerance, inspect the clutch discs and plates for wear and damage, and also inspect the clutch wave-plate height. If the discs and plates are worn or damaged, replace the discs and plates as a set. If the wave-plate height is out of tolerance, replace the wave-plate. If the discs and plates are OK, adjust the clearance with the clutch end plate.