How much transmission fluid does a 2004 Chevy Impala take?
The 2004 Impala with the common automatic transmission typically requires about 11 quarts of transmission fluid for a full fill. If you’re doing a pan drop and filter change, you’ll usually replace roughly 4–7 quarts, depending on how much fluid remains in the torque converter and lines. Always verify fluid level with the dipstick after warming up the engine and with the car in Park or Neutral, per GM guidance.
What transmission does it use and the overall capacity
Most 2004 Impalas are equipped with the GM 4L60-E automatic transmission. The total capacity for a complete fill is roughly 11 quarts. The recommended ATF is Dexron III; many owners also use Dexron VI as a modern, backward-compatible alternative. Always confirm the exact specification for your vehicle’s build date and engine in the owner’s manual or GM service information.
Choosing the right transmission fluid
Use ATF that meets GM Dexron III or Dexron VI specifications. Do not mix different ATF types, and follow the manual’s guidance for the fill procedure. If in doubt, consult a dealer or qualified technician.
Estimated fluid needs by service option
Below are typical quantities you might need for different service actions on the 4L60-E in a 2004 Impala. The exact amount can vary based on model year, engine, and how much fluid remains in the torque converter and cooler lines.
- Full transmission service (pan drop, new filter, gasket, and refill to full): about 11 quarts total in the system. Plan to have roughly 11 quarts of ATF on hand.
- Pan drop with filter change only: you’ll drain roughly 4–5 quarts from the pan; initial refill of about 4–5 quarts, with a possible additional 1–2 quarts after road testing to reach the full mark.
- Quick top-off or minor loss: typically 1–2 quarts, then recheck after warming up and driving a short distance.
Note: Always check the fluid level with the transmission warmed and the vehicle on level ground, following GM guidelines. When in doubt, err on the side of slightly underfilling and top off as needed after the car has warmed up.
How to check and fill safely
Follow the recommended procedure: warm the engine, have the transmission in Park, keep the engine idling, and check the dipstick reading at operating temperature. Add fluid in small increments and recheck until the level is within the specified range. If you’re not comfortable performing a fluid change, seek professional assistance.
Summary
The 2004 Chevy Impala’s automatic transmission (4L60-E) has an approximate total capacity of 11 quarts. For a full service, plan for about 11 quarts of ATF (Dexron III or Dexron VI meeting GM specs). For a pan drop and filter change, expect to replace roughly 4–7 quarts initially, with final adjustments after running and checking the level. Always verify the exact capacity and fluid type for your specific vehicle using the owner’s manual or GM service information.
