Home ReviewsRefund
Home/Oldsmobile/Aurora/Oldsmobile Aurora II (1999-2003)/Repair manual/Cooling Fan/Engine Cooling System: Maintenance
Contents Wiring diagrams Section: Cooling Fan All sections

Engine Cooling System: Maintenance Oldsmobile Aurora II

Cooling Fan ~225 words

Draining and Filling Cooling System

WARNINGAs long as there is pressure in the cooling system, the temperature can be considerably higher than the boiling temperature of the solution in the radiator without causing the solution to boil. Removal of the pressure cap while the engine is hot and pressure is high will cause the solution to boil instantaneously - possibly with explosive force - spewing the solution over the engine, fenders and the person removing the cap.
WARNINGAn electric fan under the hood can start up even when the engine is not running and can injure you. Keep hands, clothing and tools away from any underhood electric fan.

Draining Procedure

  1. Remove the surge tank pressure cap. 1.1. Clean the cap. 1.2. Pressure test the cap. 1.3. If necessary, replace the cap. 1.4. Clean the surge tank filler neck. Inspect the filler neck.
  2. Remove the front air deflector. Refer to «AIR DEFLECTOR REPLACEMENT -- FRONT»(ref-175313-S03656394322005042000000) .
  3. Open the radiator drain at the bottom of the radiator.
  4. Completely drain the cooling system.
  5. If the coolant is dirty, or if there are deposits in the radiator, flush the cooling system before refilling. Refer to «Flushing»(ref-175176-S11233514012005041800000) .
  6. Remove the surge tank. Refer to «Surge Tank Replacement»(ref-175176-S39995397242005041800000) . 6.1. Clean the outside of the surge tank. 6.2. Pour out any fluid. 6.3. Thoroughly clean the inside of the surge tank using soap and water. 6.4. Thoroughly flush the surge tank with clean water and drain.
  7. Install the surge tank. Refer to «Surge Tank Replacement»(ref-175176-S39995397242005041800000) .
  8. Close the radiator drain.
  9. Install the front air deflector. Refer to «AIR DEFLECTOR REPLACEMENT -- FRONT»(ref-175313-S03656394322005042000000) .

Flushing

  1. Park the vehicle on a level surface.
  2. Remove and clean or flush the coolant surge tank. Refer to «Surge Tank Replacement»(ref-175176-S39995397242005041800000) .
  3. Flush the engine cooling system. Follow the flushing equipment manufacturer's instructions.
  4. Install the coolant surge tank. Refer to «Surge Tank Replacement»(ref-175176-S39995397242005041800000) .
  5. Fill the cooling system. Refer to «Draining and Filling Cooling System»(ref-175176-S18005840362005041800000) .

More articles — Engine Cooling System