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Home >> Jeep >> 2006 >> Commander Base, 3.7 K, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Engine & Automatic Transmission Cooling System >> Engine >> Pump-Water >> Removal >> 3.7L

Engine & Automatic Transmission Cooling System: Engine: Pump-Water: Removal: 3.7L

Fig 1: Automatic Belt Tensioner-3.7L
GC0028745Courtesy of DAIMLERCHRYSLER CORP.
1 - AUTOMATIC TENSIONER
2 - WATER PUMP PULLEY

The water pump on 3.7L engines is bolted directly to the engine timing chain case cover.

  1. Disconnect negative battery cable from battery.
  2. Drain cooling system. Refer to DRAINING COOLING SYSTEM .
    WARNING: Constant tension hose clamps are used on most cooling system hoses. When removing or installing, use only tools designed for servicing this type of clamp. Snap-on clamp tool (number hpc-20) may be used for larger clamps. Always wear safety glasses when servicing constant tension clamps.
    CAUTION: A number or letter is stamped into the tongue of constant tension clamps. If replacement is necessary, use only an original equipment clamp with matching number or letter.
  3. Remove two fan shroud-to-radiator screws, Disconnect the coolant overflow hose.
  4. Remove accessory drive belt. See Fig 1 and (Refer to COOLING/ACCESSORY DRIVE/DRIVE BELTS - REMOVAL) .
  5. Remove lower radiator hose clamp and remove lower hose at water pump.
  6. Remove seven water pump mounting bolts and one stud bolt.
    CAUTION: Do not pry water pump at timing chain case/cover. The machined surfaces may be damaged resulting in leaks.
  7. Remove water pump and gasket. Discard gasket.