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Engine Cooling System: Maintenance Chevrolet SSR I

Cooling Fan ~207 words

Draining Procedure

CAUTIONTo avoid being burned, do not remove the radiator cap or surge tank cap while the engine is hot. The cooling system will release scalding fluid and steam under pressure if radiator cap or surge tank cap is removed while the engine and radiator are still hot.
  1. Remove the coolant pressure cap.
  2. Raise and support the vehicle. Refer to «Lifting and Jacking the Vehicle»(ref-187824-S17690437682005090100000) in General Information.
  3. Place a drain pan under the drain cock.
  4. Remove the radiator drain cock.
  5. Drain the cooling system.
  6. Lower the vehicle.
  7. Inspect the coolant.
  8. Follow the appropriate procedure based on the condition of the coolant. Normal in appearance - Follow the filling procedure. Discolored - Follow the flush procedure. Refer to «Flushing»(ref-187839-S05034637632005090100000) .

Flushing

IMPORTANTDo not use a chemical flush. Store used coolant in the proper manner, such as in a used engine coolant holding tank. Do not pour used coolant down a drain. Ethylene glycol antifreeze is a very toxic chemical. Do not dispose of coolant into the sewer system or ground water. This is illegal and ecologically unsound. Various methods and equipment can be used to flush the cooling system. If special equipment is used, such as a back flusher, follow the manufacturer's instruction. Always remove the thermostat before flushing the cooling system.

When the cooling system becomes contaminated, the cooling system should be flushed thoroughly to remove the contaminants before the engine is seriously damaged.

  1. Drain the cooling system. Refer to «Draining and Filling Cooling System»(ref-187839-S38425357962005090100000) .
  2. Remove the surge tank. Refer to «Surge Tank Replacement»(ref-187839-S20635844932005090100000) .
  3. Clean and flush the surge tank with clean, drinkable water.
  4. Install the surge tank. Refer to «Surge Tank Replacement»(ref-187839-S20635844932005090100000) .
  5. Follow the drain and fill procedure using only clean, drinkable water. Refer to «Draining and Filling Cooling System»(ref-187839-S38425357962005090100000) .
  6. Run the engine for 20 minutes.
  7. Stop the engine.
  8. Drain the cooling system. Refer to «Draining and Filling Cooling System»(ref-187839-S38425357962005090100000) .
  9. Repeat the procedure if necessary, until the fluid is nearly colorless.
  10. Fill the cooling system. Refer to «Draining and Filling Cooling System»(ref-187839-S38425357962005090100000) .

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