GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 2001 🢒 GMC C-Series Medium Duty Truck B7 🢒 Engine 🢒 Engine Cooling 🢒 Radiator Drain Cock Replacement

Removal Procedure

    Object Number: 339454 Size: SH
  1. Drain cooling system. Refer to Cooling System Draining and Filling .
  2. Use a ¼ in drive in order to open and release the drain cock.
  3. Remove drain cock.

Installation Procedure

    Object Number: 339454 Size: SH
  1. Install drain cock.
  2. Refill cooling system. Refer to Cooling System Draining and Filling .
  3. Start engine and check for leaks.