Hi,
The drain plug is on the lower left (driver's side) of the radiator. Here are the directions for removal, draining, and replacement of the drain plug. The attached pics correlate with the directions.
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2005 Chevrolet Impala V6-3.4L VIN E
Procedures
Vehicle Engine, Cooling and Exhaust Cooling System Radiator Radiator Drain Plug Service and Repair Procedures
PROCEDURES
Drain Cock Replacement
Removal Procedure
1. Drain the cooling system.
Pic 1
2. Unscrew the radiator drain cock from the radiator.
3. Remove the drain cock from the radiator side tank with a firm tug.
4. Remove the drain cock seal from the drain cock.
Installation Procedure
pic 2
1. Install the seal on the drain cock stem.
2. Install the drain cock. Make sure that the body is fully seated in the side tank of the radiator.
3. Screw the radiator drain cock in to the radiator.
4. Fill the cooling system.
I hope this helps. Let me know if you have other questions.
Joe
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Wednesday, December 2nd, 2020 AT 8:20 PM