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.
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HOMESERVICE MANUALSLINCOLN2009NAVIGATOR L RWDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 72 (AUTOMATIC TRANSMISSION)DISASSEMBLY AND ASSEMBLY OF SUBASSEMBLIESMAIN CONTROL VALVE BODYASSEMBLY
2009 Lincoln Navigator L RWD
Main Control Valve Body: Assembly
2009 Lincoln Navigator L RWDSECTION Assembly
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.
- Thoroughly clean all parts in solvent and blow dry with moisture-free compressed air.
- After cleaning the main control valve body, carry out the following:
- Inspect all valve and plug bores for scoring or burrs.
- Check all fluid passages for obstructions.
- Inspect all valves and plugs for burrs.
- Inspect all mating surfaces for burrs or distortion.
- Inspect all springs for distortion.
- Check all valves and plugs for free movement in their respective bores.
- Valves and plugs, when dry, must fall from their own weight into their respective bores.
- Roll the manual valve on a flat surface to check for a bent condition.
- Assemble the main control valve body.
- Install the main control valve body check balls.
CAUTION:
Do not stone, file or sand the valves. This will remove the anodized finish and may result in further main control or transmission damage.
RENDER: 1.0x
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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.