Installation Procedure

WARNING: This page is about a different car, the 2003 Buick Regal and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Install the seal on the drain cock plug stem.
Install the drain cock plug. Make sure that the body is fully seated in the side tank and that the locking tabs are engaged.

Fig 1: Installing Radiator Drain Plug
Courtesy of GENERAL MOTORS CORP.
Install the lower air deflector. Refer to RADIATOR AIR BAFFLE AND DEFLECTOR REPLACEMENT - LOWER .
Fill the cooling system. Refer to DRAINING AND FILLING COOLING SYSTEM .