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2000 tahoe overheating help!!

Discussion in 'Chevy Tahoe Forum (GMC Yukon, Cadillac Escalade)' started by camaro383, Oct 15, 2012.

  1. camaro383

    camaro383 New Member

    hi al!l i have a 2000 tahoe 5.3 with an overheating issue here are the symptoms and heres what ive fixed so far....
    truck will not overheat at idle only when driving around or sitting still and holding high rpms
    have already changed the thermostat and fan clutch as the fan clutch was very weak and the thermostat could use changing anyways.. any ideas? thank you for your time!
  2. RayVoy

    RayVoy Active Member 1000 Posts

    Rad plugged with debris so air can not flow, bad water pump, plugged hose.

    Can you feel water flowing through the top hose?
  3. camaro383

    camaro383 New Member

    im thinking its the water pump. the outside of radiator is fine theres no coolant in the oil
  4. Conlan Rose

    Conlan Rose Super Moderator 1000 Posts

    There may be something clogging the radiator internally making it cool less efficiently at speed. I think [MENTION=33253]donyms[/MENTION] had a similar problem and replacing his radiator fixed it.
  5. camaro383

    camaro383 New Member

    Couldn't feel water flowing through still had the red dexcool water pump sounds like crap when I took the fan and belt off and spun it by hand so thats going to be replaced regardless. Other than that I'm going to flush the cooling system by hose and see if there's any clogs thanks for the help so far guys
  6. Conlan Rose

    Conlan Rose Super Moderator 1000 Posts

    No problem and if the bearings feel junky it needs to be replaced.

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