Town Car 1993

Drain & Refill


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Fig. On later models, it might be necessary to remove the air deflector

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Fig. The radiator petcock (drain) is typically located on the driver's side of the radiator, on the side tank. It is accessible from underneath the vehicle

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Fig. Make sure you have a drain pan in place before you open the drain because coolant will immediately begin to flow out

Ensure that the engine is completely cool prior to starting this service.

Never open, service or drain the radiator or cooling system when hot; serious burns can occur from the steam and hot coolant. Also, when draining engine coolant, keep in mind that cats and dogs are attracted to ethylene glycol antifreeze and could drink any that is left in an uncovered container or in puddles on the ground. This will prove fatal in sufficient quantities. Always drain coolant into a sealable container. Coolant should be reused unless it is contaminated or is several years old.

  1. Remove the recovery tank or radiator cap.
  3. Raise and support the vehicle.
  5. Remove the front air deflector, if necessary.
  7. Place a drain pan of sufficient capacity under the radiator and open the petcock (drain) on the radiator.

Plastic petcocks easily bind. Before opening a plastic radiator petcock, spray it with some penetrating lubricant.

  1. Drain the cooling system completely.
  3. Close the petcock.
  5. Remove the drain pan.
  7. If removed, install the air deflector.
  9. Lower the vehicle.
  11. Determine the capacity of the cooling system, then properly refill the system at the recovery tank or radiator opening with a 50/50 mixture of fresh coolant and distilled water until it reaches the FULL COLD line on the recovery tank or the radiator is full.
  13. Leave the recovery tank or radiator cap off to aid in bleeding the system.
  15. Start the engine and allow it to idle until the thermostat opens (the upper radiator hose will become hot). The coolant level should go down, this is normal as the system bleeds the air pockets out of the system.
  17. Refill the system with coolant to the proper level.
  19. Turn the engine OFF and check for leaks.