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probably a bad water pump.. steam escaping from the small hole behind the pulley or around the gasket. before changing water pump though, search for exactly where the steam is coming from... could be just a worn hose.
Take a OHM meter and test the wire to the tank sender. If you have a full tank of gas you should get a reading of 8 ohms. If a hlf it will be 4 ohms. If no reading is shown you have an empty tank. Now if the meter stays at the OL setting at all times although if you bounce the Jeep to make the gas swish around and do get a reading and when the gas settles back down leveling out and returns to the OL setting the sender is bad and needs to be replaced
No diagram but here is how it goes: 1. around the power steering pulley (going ccw) 2.under the idler pulley 3. over the a/c compressor 4.around alternator 5.over top of fan pulley 6.arolund crank pulley 7. over water pump, returning to bottom of p/s pulley. Running, the water pump should turn ccw.
Remove fan belts first, then removed fan pulley bolts these are on the front center of the fan hub,,,remove these bolts. Then remove the fan, and hub off the front of the water pump,,then remove the coolant hoses,,make sure you use a drain bucket to catch all of the antifreeze. Then remove the water pump mounting bolts,,and gently pry off the water pump. Then go get a new one. Before install,,make sure you take a scraper and clean off any old gasket material first before installing the new gasket. Then re-install the new pump.
If you are trying to solve an overheating problem this will not achieve anything, but if just to clean out dirty coolant this is how its done.. When engine is cold !!! with radiator in vehicle. 1/ Remove Top and bottom radiator hoses. 2/ Insert garden hose into bottom hose connection of radiator (Use a rag to help seal the connection) turn on water fully to reverse flush radiator till water comes out of top connection, repeat a couple of times. 3/ Reconnect hose to radiator , fill with clean water only. 4/ Run engine till it reaches normal temperature, then switch off engine and allow to cool. 5/ Remove bottom hose to drain system again, refit hose and refill with a good coolant mixture according to you climate.