GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Oldsmobile 🢒 1999 🢒 Aurora 🢒 Engine 🢒 Engine Mechanical - 4.0L 🢒 Engine Coolant Thermostat Removal

    Object Number: 71389 Size: SH
  1. Remove the thermostat housing retaining bolts.
  2. Remove the thermostat housing and the thermostat.