Main Fluid Pump Pressure High or Low
WARNING: This page is about a different car, the 2010 GMC Sierra and 2010 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.
| Checks |
Causes |
| Dampener Housing with Fluid Pump Assembly |
- Inspect for worn, sticking, or damaged pressure regulator valve.
- Inspect for worn, sticking, or damaged pressure regulator valve outer spring.
- Inspect for worn, sticking, or damaged pressure regulator valve inner spring.
- Inspect for worn, sticking, or damaged isolator valve and sleeve.
- Inspect for worn, sticking, or damaged pressure relief ball valve.
- Inspect for worn, sticking, or damaged pressure relief ball valve spring.
- Inspect for damaged or porous pump cover assembly. Inspect for pump surfaces not flat.
- Inspect for excessive fluid pump rotor clearance or damage. Ensure proper selective rotor is being utilized.
- Inspect for damaged fluid pump slide. Ensure proper selective slide is being utilized.
- Inspect for worn, sticking, or damaged fluid pump slide outer spring.
- Inspect for worn or damaged fluid pump slide seal, seal support, pivot pin, fluid seal ring, and O-ring seal.
- Inspect for worn or damaged fluid pump vane rings and rotor guide.
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| Control Valve Upper Body Assembly |
- Inspect for worn, sticking, or damaged actuator feed limit valve and spring.
- Inspect for worn, sticking, or damaged clutch boost valve and spring.
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| Fluid Filter Assembly |
- Inspect for damaged or restricted fluid filter assembly.
- Inspect for damaged fluid filter seal assembly.
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