The fuel system is under constant pressure, even when the engine is off. Refill the coolant, adjust belt tension.įuel Pump Removal & Installation To Remove: Tighten them up in 1/4 turn increments.ġ8. Apply Another coat to the other side of the gasket.ġ4. Put a couple bolts through the pump to hold the gasket in place and mount the gasket.ġ3. Apply a thin continuous line of RTV High Temp sealant to the water pump side of the gasket.ġ2. Remove the remaining bolts and detach the water pump from the engine. When removing the P/S pump and/or AC compressor, leave the hoses attached and move them out of the way. Remove accessory brackets from the water pump. Remove belts (see my tip on serpentine belts if needed)ħ. Open radiator valve - drain cooling systemĤ. Make sure your replacement pump is the correct type, If not, expect some major turmoil.Ģ. REV imprinted or cast on the housing and/or fan. You can ID these from the word REVERSE or Once coolant started to flow out the upper hose, I reconnected it and topped it off.Here's a step by step to remove and replace the water pump on your Wrangler.Īll 4.0L engines, some 2.8L engines and some 4.2L engines have a I wanted to make sure that water flowed all the way through the block and air had an outlet (via the upper hose). For the upper rad hose I had it connected to the t-stat housing BUT I didn't connect it to the radiator. when I did my pump I filled the radiator and the water filled the block via the lower radiator hose. put the new pump on and re-assemble everything.Ħ. clean everything! every part of the block needs to be completely clean before putting the new pump on or it might leak.ĥ. unbolt the water pump, get the lower hose out of the wayĤ. Unbolt the T-stat housing, and get the upper hose out of the wayģ. now that the fan is out of the way you can easily access the water pump and thermostat housing. Once the belt is off, take the fan bolts out and pull the fan and fan shield out together.Ģ. fan shield and the fan bolts, and loosen the belt and remove it. drain the radiator and block, and while it is draining, unbolt the rad.
He made a good point about draining the coolant by taking the lower hose off. like 98TJ said above, the water pump is not too difficult to tackle. The only difference between the 50/50 and regular prestone is that 50/50 is ready to go into your radiator and the original prestone has to be mixed with water before you pour it in.
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