Question about 2004 Nissan XTerra

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2004 nissaan xterra v6 3.3L at 4wd; temp gauge starting to run hot. I changed water pump, thermostat and fan clutch at 1st sign. and timing belt and tensioner while i was in there. after replacement, I filled radiator and ran with heater on to cycle coolant thru. after test driving, temp gauge still runs high only under load. when i idle or coast, temp gauge starts to decrease slightly. after cooling engine, I noticed lower radiator hose is squeezed. any recommedations?

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  • briansdiving Dec 13, 2010

    ok, after all the checking and triple checking and changing of parts, It turned out to be a simple radiator problem!!! I had flushed it out with simple green and then vinegar and flushed it every which way under the sun. I did however notice that while flushing it with the garden hose, water seemed to exit a little slow for my liking out of the lower radiator hose port. I ended up biting the bullet and purchasing one from my local parts store. So, in the end, after changing the water pump, thermostat, timing belt

  • briansdiving Dec 13, 2010

    I finally changed the radiator! It was the issue, hence the lower radiator hose squeeze! Flow was restricted creating a type of vapor lock! or squeeze shall i say! Anyways, after changing all the above, and $754 in parts alone, This one is for the "learned my lesson" book! I should've picked up on it the first time I changed everything and only flushed the radiator. I noticed a somewhat slower flow out of the lower radiator hose port while flushing. I just figured it was because of it being a small single core radiator. (Why nissan did this for a V6 is beyond my reasoning!) Oh well, lesson learned!!!!!

    If it helps at all for the diy'ers, to check the radiator, once drained out and flushed, simply "blow" thru the upper radiator hose inlet with the radiator cap on. Use some kind of cloth to prevent your lips from being contaminated. There should be no restriction at all! If there is, change that radiator!

    I had a friend recommend to use lime away in the radiator for about and hour. Once off the vehicle of course. He recommended laying it down with cap on and plug on overflow stem, then filling it with lime away until it fills up both hose ports. Let it sit for an hour or longer then flush. I haven't tried it yet but will do as I still have the old radiator and it wasn't leaking or cracked. I'll try it just for the sake of trying it to see if really works. will post results when i try the "experiment"! Good luck to all, hope this helps someone out there!!

  • briansdiving Dec 18, 2010

    Yes sir, I hear you there! Thanks for your comments!



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Well , I know $800 is a big bill , but think of it this way , you got a bunch of new stuff on the car. The timing belt replacement alone would cost someone almost $800 to have done by a mechanic , and if it broke and destroyed your engine how much would that have cost. It's always nice to solve the problem on the first try , but at least it is fixed now , and you won't have to worry about any of that other stuff for a long time.

Posted on Dec 15, 2010

  • briansdiving Dec 18, 2010

    yes sir! Thank you for your comments gordanddar! It sure was pleasing to solve this problem. It took me a total of 5 days to finally get my results! Thanks again for your comments. Happy Holidays!



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