Water pump shot??

[CMTJ]

Ok went to work this morning, had it running while I finished my coffee, heat was on. My buddy pulls up says I'm leaking. turn it off, crawl under and its a solid stream of antifreeze. It was coming from the bottom of the harmonic balancer which is right under the water pump. Probably leaked a good gallon or so before it slowed down. Temp gauge was normal and no weird noises. Manged to get home (only live 5 mins from work). Temp did go from cold to 210 by the time I pulled in the driveway. Have fan and shroud off ready to tackle this but I'm second guessing myself where the problem is. I know if antifreeze comes out the weep hole the bearings are likely shot but no grinding or any movement from the "pulley" on the pump. Any other things it could be before I dive into this?? Its wet all around so hard to determine where. Also I did see little pieces of black "something" when I took the rad cap off. Bad impeller maybe?? 2006 TJ 4.0 auto. 126k

 

[xxdabroxx]

My water pump just started leaking too and I just replaced the water pump in my truck last weekend. Mine sounds similar to yours but a much slower leak. Around the pulley is wet, I put my money on water pump, got a new AC Delco coming from rock auto plus thermostat/ housing, and hoses. Came in at about $100 or so.

 

[WmGardner]

Sounds like what I saw when my water pump went. Technically, there are other sources that could, in theory, leak water down the front of the block. Assuming you maintain your hoses and checked the unlikely source of the thermostat housing, then yeah..... water pump is most likely the source. If you feel the need to verify it first you can always run it a bit and then angle an inspection mirror to under the shaft/around the weep hole.


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[Chris]

I've got to admit, it sure sounds like your water pump to me.

 

[CMTJ]

yea, I replaced pump and thermostat and so far so good.