1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.

2016 Tahoe Heater Hose gunk inside

Discussion in 'Engine & Drivetrain' started by Tim10, Apr 6, 2020.

  1. Tim10

    Tim10 Full Access Member

    Posts:
    92
    Likes Received:
    17
    Joined:
    Nov 13, 2019
    Name:
    Tim
    Hey guys!

    Was working today on my T connector and mentioned LOTS of black gunk inside the heater hose.
    It looks like rubber inside the hose degrading very badly. Is it something that usually happens?
     
  2. Big Mama

    Big Mama Full Access Member

    Posts:
    2,105
    Likes Received:
    951
    Joined:
    Jul 21, 2015
    Location:
    Virginia
    Name:
    Steven
    Are you the original owner? Sounds like someone put bars leak or another radiator repair goo.
     
    PNW VietVet likes this.
  3. Tim10

    Tim10 Full Access Member

    Posts:
    92
    Likes Received:
    17
    Joined:
    Nov 13, 2019
    Name:
    Tim
    No, I'm the second owner, its an EX police car. It looks like soot, I doubt that they used bars leak during service, might be before they put it for sale? Will coolant flush liquid wash it out?
     
  4. PNW VietVet

    PNW VietVet Supporting Member

    Posts:
    4,846
    Likes Received:
    3,536
    Joined:
    Oct 8, 2014
    Location:
    Oregon
    Name:
    Ron
    The flush will flush it out but it will also continue what it has been doing and that is pushing bits of that into the radiator and the heater core and the inner workings of the thermostat. I would flush it out under water hose pressure with everything unhooked and flush out the rad and heater core separately and change the thermostat. You most definitely have some of that in the rad and HC.
     

Share This Page