GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 1997 🢒 Skylark 🢒 Engine 🢒 Engine Cooling 🢒 Radiator Drain Cock Replacement

Removal Procedure

    Notice: When adding coolant, use DEX-COOL® coolant. If silicated coolant is added to the system, premature engine, heater core or radiator corrosion may result. In addition, the engine coolant will require change sooner-at 50 000 km (30,000 mi) or 24 months.

  1. Drain the coolant from the radiator. Refer to Draining and Filling Cooling System .

    2. Object Number: 73838 Size: SH
  2. Remove the radiator drain stem and seal. The seal usually comes out attached to the stem.
  3. Clean the drain.

Installation Procedure

    Object Number: 73838 Size: SH
  1. Install the seal on the drain cock stem.
  2. Install the drain cock. Turn the stem clockwise to lock.
  3. Refill the coolant to the proper level. Refer to Draining and Filling Cooling System .
  4. Start the engine. After the engine reaches normal operating temperature, check for coolant leaks.