Low fluid level

Add fluid to the proper level. Refer to Transmission Fluid Check .

Air leak in oil suction filter canister

Replace the oil suction filter. Refer to Oil Pan Replacement .

Clogged suction filter

Replace the filter. Refer to Oil Pan Replacement .

Aerated fluid causes noisy pump

Correct the fluid level. Refer to Transmission Fluid Check .

Low main pressure causes main regulator valve to oscillate

Refer to Low Main Line Pressure in All Ranges and Low Main Line Pressure in Specific Ranges, Normal Pressure in Other Ranges .