Fluid Pressure High or Low

WARNING: This page is about a different car, the 2021 GMC Terrain. However, it is still accessible from the selected car via links, so may be relevant.

Checks	Causes
Automatic Transmission Fluid Pump Assembly 201	Inspect for loose fluid pump bolts (200, 211, and 312). Inspect for leaking or damaged: fluid pump gasket (313). Inspect for leaking or damaged: fluid pump seal (314). Inspect for leaking or damaged: oil filter seal (202). Inspect for improperly installed, restricted or damaged oil filter (203). Inspect for leaking automatic transmission fluid pump ball check ball (324). Inspect for worn, sticking or damaged pressure regulator valve (319) or pressure regulator valve spring (318). Inspect for damaged or restricted oil ports in the oil pump body (315) or drive sprocket support assembly (339). • Inspect for internal damage to front pump (315).

Checks

Causes

Automatic Transmission Fluid Pump Assembly 201

Inspect for loose fluid pump bolts (200, 211, and 312).
Inspect for leaking or damaged: fluid pump gasket (313).
Inspect for leaking or damaged: fluid pump seal (314).
Inspect for leaking or damaged: oil filter seal (202).
Inspect for improperly installed, restricted or damaged oil filter (203).
Inspect for leaking automatic transmission fluid pump ball check ball (324).
Inspect for worn, sticking or damaged pressure regulator valve (319) or pressure regulator valve spring (318).
Inspect for damaged or restricted oil ports in the oil pump body (315) or drive sprocket support assembly (339).
• Inspect for internal damage to front pump (315).