OEM 2008 Jeep Wrangler Water Pump

2008 Jeep Wrangler Water Pump Parts and Q&A

• Q: How to Replace the Water Pump on a 3.8L Engine on 2008 Jeep Wrangler?

  A: Start by installing a new seal into the groove at the water pump housing on a 3.8L engine. Make sure the pump pulley is not tightly in place while you are putting in the water pump. Next, place the water pump pulley between the pump housing and drive hub, loosely. After that, attach the water pump and pulley to the timing chain cover and make sure the water pump bolts are fastened to 12 Nm (105 in. lbs.). Position the pulley in the center of the pump hub, insert and tighten the bolts until the force reaches 28 Nm (250 in. lbs.). Turn the pump by hand so you can ensure it is not stuck and then put the accessory drive belt in place. When that's done, secure the drive belt shield and pour the appropriate amount of coolant into the system.