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Home >> Jeep >> 2003 >> Wrangler Sahara, Standard >> Repair and Diagnosis >> Engine Mechanical >> Cooling System (Mechanical) >> Engine Cooling System >> Engine Block Heater >> Installation >> Installation 4.0L

Installation 4.0L

  1. Thoroughly clean the engine core hole and the block heater seat.
  2. Insert block heater assembly into core hole with element loop pointing Up  (Figure ).
  3. Seat block heater flush against block face. Tighten mounting screw to 4 N.m (31 in. lbs.) torque.
  4. Fill cooling system (Refer to COOLING - STANDARD PROCEDURE ), and inspect for leaks (Refer to COOLING - DIAGNOSIS AND TESTING ).
  5. Plug power cord into block heater. Route cord away from moving parts, linkages and exhaust system components. Secure cord in place with tie-straps.
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