Multiple Water Pump failure
#1
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Model: Cherokee
Multiple Water Pump failure
Got a 00 XJ 4.0, I've replaced the water pump 3 times since May. I have been using carquest pumps (I know now they're junk) but everytime it has leaked out of the weep hole after ~1 month of being installed. Clutch fan is fine has no wobble/play in it, and belt tension is as my Haynes manual recommends. I replaced the thermostat in May as well, and cannot seem to figure out why I keep going through pumps. I bought a FlowKooler and plan on installing that tomorrow, and suggestions of what I should change this time around? I'm stumped.
#2
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Year: 1998
Model: Cherokee
Engine: 4.0 HO I6
Were they reman units or new? I learned to do water pumps on a 79 dodge pickup I drove in high school....after the third faulty reman, my dad suggested I spend the extra $15 on a new one. It worked for the rest of that truck's life and now I always buy new. Never had a problem again. Sounds like you had a run of bad luck with crappy water pumps. The flowkooler should fix you up.
#3
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They were reman'ed. that could have been the problem, I had the same brand the first 2 times but this most recent was a different (still crappy) aftermarket brand. Really hoping the FlowKooler does the trick.
#7
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I was running prestone 50/50, I thought maybe the belt was too tight but it deflected 1/4"-1/2" when I measured it. I did it a little bit looser today when I installed the flowKooler, hopefully I won't have to do it again for a few years. Thanks for the help all.
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#8
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Year: 1999
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Engine: 4.0 Liter L6
Definitely blame the reman pump there, usually not within specs from some of the original parts being worn and causes seal wear or imperfect sealing surface.
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