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Squeal, squeal... oh fugggg


karaoke_carlos

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ANOTHER water pump dead. This is the 3rd water pump i'm replacing in a month. They are always failing at the shaft seal/bearing.

What can I possibly be doing wrong to kill the water pump again?

C:>
 


grey ghost

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are you getting new ones or remans?
 

rangerbert

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where you buying your water pumps from. go to napa get the good stuff.
 

Sevensecondsuv

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I've had great luck with the duralast (autozone) pumps for the 4.0. Brand new (not remanned) with a lifetime warranty. I've had one in mine for 60,000 now without even a drop of leakage.

Maybe your belt tension is too high and causing the shaft bearing to fail?
 

karaoke_carlos

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Tension too high?

I thought with the idler pulley the tension was set automatically. Perhaps you're on to something. How can I loosen it?

Thanks,

Carlos
 

JohnPi

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Belt tensioners can go bad without looking bad. You can't adjust them, but you can replace them (pretty easily). I had one go bad on a '94 F150 with the 5.0L, and the direct problem caused was bad water pump. If I remember right, the tensioner was actually pretty cheap (around $15 or so).
 

karaoke_carlos

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Well.. the impeller broke in half... seems I'm having some sort of a clearance issue in the water pump. I just don't understand WHY!?!?!?!!?
 

Stranger ranger

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Hmm. Something is definitely out of order if the impeller is breaking in half. Is your fan bent? If so I could be throwing it off and that would certainly cause it to wear.
 

289-tiger-

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Sounds like the fan/clutch assembly is out of balance. Had the same issue years ago with my marque(not Ranger). In my case I had to take a stock pump and have the hub pressed deeper onto the shaft for fan clearance, thought it was the pressing process killing the pump, nope bad steel fan.

Good luck
 

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