Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Reverse Servo Assembly: Disassembly
2009 Lincoln Navigator L RWDSECTION Disassembly
WARNING: This page is about a different car, the 2009 Ford Mustang. However, it is still accessible from the selected car via links, so may be relevant.
| Item | Part Number | Description |
|---|---|---|
| 1 | 7D321 | Control valve spring retainer |
| 2 | 7A270 | Fluid pressure regulator valve spring |
| 3 | 7D488 | Reverse servo check valve |
| 4 | 7D372 | Reverse servo plate |
| 5 | 7D466 | Reverse servo accumulator spring |
| 6 | 7D189 | Reverse servo piston and seal |
| 7 | 7423 | Reverse servo piston O-ring |
| 8 | 7D036 | Reverse servo cover |
- Remove the control valve spring retainer.
- Remove the reverse servo spring and check valve.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.