Chrysler Front Wheel Drive Cars 4-CYL 1981-1995 Repair Information

Freeze Plugs



See Figures 1 and 2

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Fig. Fig. 1: Using a punch and a hammer, the freeze plug can be loosened in the block

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Fig. Fig. 2: Once the freeze plug has been loosened, it can be removed from the block

  1. Drain the cooling system, as described in Routine Maintenance .
  3. Remove any components limiting access to the freeze plug.
  5. Using a blunt tool such as a drift or punch and a hammer, strike the bottom edge of the cup plug to rotate the top side out and the bottom side into the bore. With the cup plug rotated, grasp firmly with pliers or other suitable tool remove the plug.

Do not drive the freeze plug completely into the block assembly casting, otherwise restricted cooling system flow will result.

To install:
  1. Thoroughly clean inside of cup plug hole in cylinder block or head. Be sure to remove old sealer.
  3. Lightly coat inside of cup plug hole with RTV sealant.
  5. Make certain the new plug is cleaned of all oil and grease.
  7. Using the properly-sized drive tool (a properly sized socket can also be used-the socket should just fit inside the edge of the freeze plug), drive the freeze plug into the hole so that the sharp edge of the plug is at least 0.020 in. (0.50mm) inside the chamfer.
  9. Install any components removed earlier.
  11. Refill the cooling system. For more information, refer to Routine Maintenance .