GM Service Manual Online
For 1990-2009 cars only

Secondary Fluid Pump Overheats M33 Only

Secondary Fluid Pump Overheats (M33 Only)

Checks

Causes

    â€¢ Inspect transmission fluid level. Refer to Transmission Fluid Check .
    â€¢ Transmission bottom pan damage.

Low or high fluid level.

    â€¢ Restricted Secondary Fluid Pump filter or pump inlet.
    â€¢ Pump motor high current draw.
    â€¢ Worn secondary fluid pump motor bearings or worn pump gears.

Secondary Fluid Pump.