Chrysler Concorde/Intrepid/LHS/New Yorker/Vision 1993-1997

Water Pump

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REMOVAL & INSTALLATION



The water pump has a die cast aluminum body and a stamped steel impeller. It bolts directly to the chain case cover using an O-ring for sealing. It is driven by the back side of the serpentine belt.

It is normal for a small amount of coolant to drip from the weep hole located on the water pump body (small black spot). If this condition exists, do NOT replace the water pump. Only replace the water pump if a heavy deposit or steady flow of brown/green coolant is visible on the water pump body from the weep hole, which would indicate shaft seal failure. Before replacing the water pump, be sure to perform a thorough analysis. Before replacing the water pump, be sure to perform a thorough inspection. A defective pump will not be able to circulate heated coolant through the long heater hose.

3.3L Engine

See Figures 1, 2, 3 and 4

  1. Disconnect the negative battery cable.
  2.  

  1. Place a drain pan under the radiator. Open the radiator drain located at the lower right side of the radiator. Do NOT use pliers to open the plastic drain.
  2.  
  3. Remove the coolant pressure bottle cap and open the thermostat bleed valve.
  4.  
  5. Remove the serpentine belt. If necessary, remove the right front lower fender shield.
  6.  
  7. Remove the water pump pulley bolts and pulley.
  8.  



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Fig. Fig. 1: Separate the pulley from the water pump

  1. Remove the water pump mounting bolts and pump. Discard the O-ring seal.
  2.  



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Fig. Fig. 2: Unbolt the pump from the engine-3.3L engine



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Fig. Fig. 3: Remove the pump, then clean the mating areas

  1. Clean the gasket sealing surfaces. Do not scratch the aluminum surfaces.
  2.  

To install:
  1. Install a new O-ring into the O-ring groove and the water pump to the timing chain case. Be sure to keep the O-ring free of any oil or grease.
  2.  



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Fig. Fig. 4: Remove the O-ring from the pump body groove, and install a new one in the new pump

  1. Install the retaining bolts and tighten to 105 inch lbs. (12 Nm).
  2.  
  3. Rotate the pump and check for freedom of movement.
  4.  
  5. Install the pump pulley and tighten the bolts to 250 inch lbs. (30 Nm).
  6.  
  7. Install the serpentine belt and right lower fender shield.
  8.  
  9. Be sure that that the radiator drain is closed. Open the thermostat bleed valve. Install a 1 / 4 -inch clear hose about 48 inches long, to the end of the bleed valve and the other end into a clean container. The intent is to keep coolant off the drive belt(s).
  10.  
  11. Slowly refill the coolant pressure bottle until a steady stream of coolant flows out of the thermostat bleed valve. Gently squeeze the upper radiator hose until all of the air is removed from the system.
  12.  
  13. Close the bleed valve and continue to fill up the coolant pressure bottle to the proper level. Install the cap back on the bottle and remove the hose from the bleed valve.
  14.  
  15. Reconnect the negative battery cable. Start the engine and allow to run until normal operating temperature is reached.
  16.  
  17. Check the cooling system for leaks and correct coolant level. Be sure that the thermostat bleed valve is closed once the cooling system has been bled of any trapped air.
  18.  

3.5L Engine

See Figure 5

  1. Disconnect the negative battery cable.
  2.  

  1. Place a drain pan under the radiator. Open the radiator drain located at the lower right side of the radiator. Do NOT use pliers to open the plastic drain.
  2.  
  3. Remove the coolant pressure bottle cap and open the thermostat bleed valve.
  4.  
  5. Remove the timing belt using the recommended procedure. It is good practice to turn the crankshaft until the engine is at TDC No. 1 cylinder, compression stroke (firing position). This aligns all the timing marks and serves as a reference point for all the work that follows.
  6.  
  7. Remove the water pump mounting bolts and pump. Discard the O-ring seal.
  8.  
  9. Clean the gasket sealing surfaces. Do not scratch the aluminum surfaces.
  10.  

To install:
  1. Install a new O-ring and wet with clean coolant. Be sure to keep the new O-ring free of any oil or grease.
  2.  
  3. Install the water pump and O-ring to the engine block.
  4.  
  5. Install the retaining bolts and tighten to 105 inch lbs. (12 Nm).
  6.  



Click image to see an enlarged view

Fig. Fig. 5: Tighten the water pump mounting bolts to 105 inch lbs. (12 Nm)

  1. Rotate the pump and check for freedom of movement.
  2.  
  3. Install the timing belt using the recommended procedure. Verify that all valve timing marks align. This is most important. An engine out-of-time will be seriously damaged when first started.
  4.  
  5. Be sure that the radiator drain is closed. Open the thermostat bleed valve. Install a 1 / 4 -inch clear hose about 48 inches long to the end of the bleed valve and the other end into a clean container. The intent is to keep coolant off of the drive belt(s).
  6.  
  7. Slowly refill the coolant pressure bottle until a steady stream of coolant flows out of the thermostat bleed valve. Gently squeeze the upper radiator hose until all of the air is removed from the system.
  8.  
  9. Close the bleed valve and continue to fill up the coolant pressure bottle to the proper level. Install the cap back on the bottle and remove the hose from the bleed valve.
  10.  
  11. Reconnect the negative battery cable. Start the engine and allow to run until normal operating temperature is reached.
  12.  
  13. Check the cooling system for leaks and correct coolant level. Be sure that the thermostat bleed valve is closed once the cooling system has been bled of any trapped air.
  14.  

 
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