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Leaking coolant, not sure where.....

Discussion in '1st Gen Tundras (2000-2006)' started by moorebeej, Oct 13, 2020.

  1. Oct 13, 2020 at 11:39 AM
    #1
    moorebeej

    moorebeej [OP] New Member

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    I changed my oil the other day, and noticed the coolant was low (a little below cool) in the reservoir. I filled it up and drove it 50 miles and noticed the coolant level dropped back to the same place. I did notice some red residue noted in the pics below. Any help would be much appreciated. Thanks.

    E45F759F-05F5-4E03-96DD-13C480D8D6CF.jpg
    E45F759F-05F5-4E03-96DD-13C480D8D6CF.jpg
     
  2. Oct 13, 2020 at 11:59 AM
    #2
    Kongap

    Kongap New Member

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    That’s around the thermostat and waterpump.
     
  3. Oct 13, 2020 at 12:11 PM
    #3
    moorebeej

    moorebeej [OP] New Member

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    Thanks. Thats what I saw, too. I was kind of wondering if it was the fan displacing it there? I can't catch it leaking?
     
  4. Oct 13, 2020 at 12:24 PM
    #4
    mlombard19

    mlombard19 New Member

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    I have just recently dealt with coolant leaks, first from a cracked radiator, second from my water pump. Based on the spillage, I'd say its the water pump. IF you take off the skid plate you should be able to better determine where it's coming from as well. Also have a shop run a pressure test for you to find any other leaks (hope there isn't any;)).

    Hope it all goes well for you, been there done that and I feel the pain:bananadead:
     
  5. Oct 13, 2020 at 12:31 PM
    #5
    moorebeej

    moorebeej [OP] New Member

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    Thanks, bud. If it is the water pump, might as well, do the timing belt, too. Yee Haw!
     
  6. Oct 13, 2020 at 12:32 PM
    #6
    Kongap

    Kongap New Member

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    I had a similar leak that presented like your picture. I changed out the water pump plus the thermostat since I was doing it all anyway. Seems to have fixed it with a couple hundred miles now.
     
  7. Oct 14, 2020 at 5:05 AM
    #7
    bmf4069

    bmf4069 Yup, that's car parts in a dishwasher

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    It could also be something as simple as a hose into the throttle body leaking. I'd pull that TB cover and check there first. Always start with the simple things.
     
    Lil Steve, HulkSmurf14 and landphil like this.
  8. Oct 14, 2020 at 12:36 PM
    #8
    Professional Hand Model

    Professional Hand Model A.K.A ‘Golden Hands’

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    Looks like its coming from the O-Ring coming off from the T-Stat pipe. Second thought, I think you are correct.
     
  9. Oct 15, 2020 at 11:01 PM
    #9
    10 blue trucks

    10 blue trucks New Member

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    there is a stain on the intake, obviously coming from lower. how can you possibly know with the palastic cover on the throttle body? there is what, 10 coolant connections below that distributed by fan and drive speed airflow?
     

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