How many quarts oftransmission fluid we need for Pontiac Trans Sport 1999 whit 3.4 engine?

For a 1999 Pontiac Trans Sport with a 3.4-liter engine, the automatic transmission typically requires about 12 quarts of Transmission Fluid for a complete change, including the torque converter. However, if you are only doing a partial fluid change or a filter replacement, you may need about 5 to 7 quarts. Always check the owner's manual for specific recommendations and guidelines.