Express 1500 RWD V8-5.3L (2008)
Pressure Regulating Solenoid: Service and Repair
4L80-E/4L85-E - Automatic Transmission
Pressure Regulator Replacement
Tools Required
J 36850 Transjel(R)
Removal Procedure
1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the transmission oil pan and the filter. Refer to Automatic Transmission Fluid and Filter Replacement (See: Transmission and
Drivetrain/Automatic Transmission/Transaxle/Service and Repair/Removal and Replacement) .
Caution: Valve springs can be tightly compressed. Use care when removing retainers and plugs. Personal injury could result.
3. Remove the reverse boost valve bushing retainer ring (2).
4. Remove the following from the reverse boost valve cylinder:
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The reverse boost valve bushing
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The reverse boost valve
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The pressure regulator spring retainer
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The pressure regulator spring
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The pressure regulator valve
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The reverse boost valve bushing
Installation Procedure
1. Install the pressure regulator valve with J 36850 .
