Jeep 53022189AA Water Pump

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Disconnect the cable from the negative battery terminal. Drain the cooling system, saving the coolant if it is in good condition. Remove the engine cooling fan and shroud. Remove the drivebelt. For Hemi engines, unbolt the air conditioning compressor and alternator and reposition them. Remove the support bracket for these components. Remove the idler pulley and drivebelt tensioner. Detach the radiator hose(s) and heater hose(s) from the water pump. Remove the bolts and detach the water pump from the engine. Clean the bolt threads and threaded holes. Compare the new pump to the old one. Remove all traces of old gasket material or O-ring seal. Clean the engine and water pump mating surfaces. Apply RTV sealant to the new water pump O-ring or gasket. Attach the pump and O-ring/gasket to the engine. Install and tighten the bolts in a criss-cross pattern. Connect the hoses to the water pump and reinstall all removed parts. Refill the cooling system and check for leaks.

Disconnect the cable from the negative battery terminal.

The only way to check for corroded fins on the water pump impeller is to remove the pump for examination.

A failure in the water pump can cause serious engine damage due to overheating.

Yes, it is possible for a water pump to be bad, even if it doesn't howl or leak water. Sometimes the fins on the back of the impeller can corrode away until the pump is no longer effective. The only way to check for this is to remove the pump for examination.

Start by disconnecting the battery's negative terminal and draining the cooling system. Remove the coolant reservoir/windshield washer reservoir assembly on V6 models, as well as the cooling fan(s) and shroud. Take off the drivebelts and water pump pulley, and on 2.4L four-cylinder engines, remove the timing belt, timing belt idler pulley, camshaft sprockets, and rear timing belt cover. For 3.7L V6 engines, detach the lower radiator hose from the pump. On 4.0L engines, remove the air filter housing and the right engine mount through-bolt. Use an engine hoist to raise the engine slightly and secure it in place with a jack.