cooling system issues -
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post #1 of 3 Old 09-23-2013, 05:52 PM Thread Starter
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1996 ZJ 
Join Date: Sep 2013
Location: cypress
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cooling system issues

Alright so here it goes, i have a stock 96 zj laredo 4x4, about a month ago she randomly over heated while ideling and sprayed coolant out the water pumps seep hole, essentually a water pump and thermostat replacement an easy fix right?, well i dident have time to fix the issue myself so i took her to a "reputable" mechanic by my work so i could jump in drive the hour to my house grab some stuff then make a 4 hour trip to see my sister graduate, they diagnose it say the same thing and do the job, on the way home two of the bolts on the pump came loose and went up into the fan clutch, i was 5 min from the house and had to be towed back to the shop they ordered new bolts and did a radiator flush free as a way of saying sorry, got her back 6 days later (had to order new ones from jeep direct and they sent the wrong ones first) and she over heats on my drive home, they tow me again and replace the pump and thermostat again free of charge i get her back and she runs hot nonstop i call them they tow it back do it over again and again same issue finally they replace the fan cluch (same one the bolts went up into, and charged me for it) and say theres nothing else that can be done, i had the heads checked its good, what could the issue be?

again new pump, new thermostat and new fan clutch,and the heads good, hoses are good as well. I do hear a sound every once in awhile that sounds like the fan blades are rubbing against something metal but i cant find the source. I know my way around a wrench but iv never delt with this kinda thing before and am stumped plus having to stop 30 min into my commute during rush hour every day to keep her from over heating is really getting on my nerves (which is what im doing right now).
I also want to apologize for the poor grammer im on a crappy phone that has fought me thos entire post

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post #2 of 3 Old 09-23-2013, 06:01 PM
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1996 ZJ 
Join Date: Oct 2005
Location: Palm Desert
Posts: 918
Could still be a bad/clogged radiator, bad radiator cap, or even just a dirty condensor/radiator not letting enough air through.
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post #3 of 3 Old 09-23-2013, 06:27 PM
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1996 ZJ 
Join Date: Jan 2012
Location: Central
Posts: 8,630
You never said what size engine's in your 96? If it's a 4.0 it takes a reverse rotation water pump and a reverse rotation fan clutch. With the quality of work that shop does maybe they installed clockwise rotation ones which would be wrong or even put the thermostat in backwards? Any of which would cause some severe overheating.

Also check to make sure your fan shroud isn't hitting the fan since they probably removed it to replace the clutch. Try moving it towards the engine at the bottom and if not in tight they missed putting the bottom tabs in the slots. Also look at the bolts they used to make sure they aren't too long and hitting something as the fan/clutch rotates. Good luck!

96 4.0 ZJ Laredo, 2004 4.7L WJ Limited, 96 4.0 XJ (son's)

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