LEMON Manuals: Even more car manuals for everyone
Home >> Chevrolet >> 2015 >> Cruze LT, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 84 (Automatic Transmission - 6T40 (MH8 MHB) - 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 2015 Chevrolet Trax and 2015 Buick Encore. However, it is still accessible from the selected car via links, so may be relevant.
Checks Causes
Fluid Pump Assembly (201)
  • Inspect for loose fluid pump bolts (204).
  • Inspect for leaking or damaged fluid pump outlet seals (24) and oil filter seal.
  • Inspect for improperly installed, restricted or damaged oil filter (203).
  • Inspect for sticking line pressure blow off valve (304).
  • Inspect for worn, sticking or damaged pressure regulator valve (309) or pressure regulator valve spring (308).
  • Inspect for damaged or restricted oil ports in the oil pump body (303).
  • Inspect for missing, leaking, or damaged auxiliary fluid inlet pump seal (371) - Hybrid Models.
Torque Converter Housing (208)
  • Inspect for missing or restricted differential lube oil circuit orifice.
  • Inspect for missing front differential carrier baffle (205).
Control Solenoid Valve Assembly (w/Body and TCM) (7)
  • Inspect for leaking or damaged filter plate assembly seals (8).
  • Verify VBS operation is not stuck high or low.
Case Assembly (50)
  • Inspect for proper fluid level.
  • Inspect for missing lube oil circuit orifice or front differential carrier baffle (62).
  • Inspect for leaking or damaged valve body spacer plate assembly (12).
  • Inspect for damaged or leaking fluid check valve (55).
  • Inspect for leaking, damaged or broken fluid level control valve (13).
Torque Converter Assembly (28)
  • Inspect for damaged torque converter clutch seal (inside converter assembly).
  • Inspect for damaged or disengaged torque converter hub to oil pump drive gear.