LEMON Manuals: Even more car manuals for everyone
Home >> GMC >> 2017 >> Acadia SL >> Repair and Diagnosis >> External Pages >> Different car >> Section 197 (Automatic Transmission - 8L45 (M5N M5T) Or 8L90 (M5U) - Diagnostic Information And Procedures) >> Diagnostic Information and Procedures >> Fluid Pressure High or Low

Fluid Pressure High or Low

WARNING: This page is about a different car, the 2017 Cadillac ATS. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
A/Trans Fluid Pump Assembly (301)
  • Inspect for damaged or porous pump cover assembly. Inspect for pump surfaces not flat.
  • Inspect for excessive fluid pump shaft clearance or damage.
  • Inspect for worn or damaged fluid pump seal (302).
  • Inspect for worn or damaged fluid pump gasket (303).
Control Valve Upper Body Assembly (315)
  • Inspect for worn, sticking, or damaged actuator feed limit valve (335) and spring (334).
  • Inspect for worn, sticking, or damaged 1-2-3-4-5 reverse clutch boost valve (344) and spring (345).
A/Trans Fluid Filter (46)
  • Inspect for damaged or restricted fluid filter assembly (46).
  • Inspect for damaged fluid filter seal assembly (45).