- Raise and support the vehicle. Refer to 
Lifting and Jacking the Vehicle .
 
- Remove the left front splash shield. Refer to 
Wheelhouse Splash Shield Replacement .
 
- Remove the automatic transmission fluid pressure test hole plug (66) and O-ring seal (67).
 
- Install the 
J-21867-50   (2) with a sealing washer on each side of the adapter into the test hole.
 
- Install the quick connect fitting of the 
J-21867-50  on the hose of 
J 21867  .
 
- Connect the 
J 21867  (1) to the 
J-21867-50   (2).
 
- Fully apply the parking brake.
 
- Connect a scan tool for engine RPMs.
 
- Start the engine and allow the engine to warm up at idle.
 
- Firmly apply the brake and shift into REVERSE (R).
 
- Allow the engine to idle and record the line pressure.
 
Specifications
500-610 kPa (73-89 psi)
Important: Do not perform the 2600 RPM test longer than 5 seconds.
- Increase the engine speed to 2600 RPM and record the line pressure.
 
Specifications
1710-1980 kPa (248-287 psi)
- Allow the transmission fluid to cool at idle in PARK (P) for at least one minute.
 
- Firmly apply the brake and shift into DRIVE (D).
 
- Allow the engine to idle and record the line pressure.
 
Specifications
330-390 kPa (48-57 psi)
Important: Do not perform the 2600 RPM test longer than 5 seconds.
- Increase the engine speed to 2600 RPM and record the line pressure.
 
Specifications
1280-1418 kPa (186-206 psi)
- If the line pressure reading is not within specifications refer to the Line Test Results table.
 
Notice: Refer to Fastener Notice in the Preface section.
- Remove the tools and install the automatic transmission fluid pressure test hole plug (66) and a new O-ring (67).
 
Tighten
Tighten the test hole plug to 7 N·m (62 lb in).
- Install the left front splash shield. Refer to 
Wheelhouse Splash Shield Replacement .
 
Line Test Results
Result 
 | Possible Cause 
 | 
HIGHER than specification in BOTH DRIVE AND REVERSE 
 | 
|     •  | Line pressure control solenoid valve assembly - SLT (316) concern |  
  
|     •  | Primary regulator valve (395) concern |  
  
 | 
LOWER than specification in BOTH DRIVE AND REVERSE 
 | 
|     •  | Line pressure control solenoid valve assembly - SLT (316) concern |  
  
|     •  | Primary regulator valve  (395) concern |  
  
|     •  | Fluid pump assembly (2) concern |  
  
|     •  | 1-2 reverse clutch (603) concern |  
  
 | 
LOWER than specification in DRIVE ONLY 
 | 
|     •  | Low system line pressure |  
  
|     •  | 1-2 reverse clutch (603) slipping |  
  
|     •  | DRIVE hydraulic circuit concern/failure |  
  
|     •  | Forward clutch (565) concern |  
  
 | 
LOWER than specifications in REVERSE ONLY 
 | 
|     •  | REVERSE hydraulic circuit concern/failure |  
  
|     •  | Direct clutch (562) concern |  
  
|     •  | Low and reverse clutch (511) concern |  
  
 |