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Disconnect Wiring and Brackets Around Thermostat Housing

3:00
11:29
76.3K views

At 3:00 in

LBZ Duramax Thermostat Replacement (Quickest Way)

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What happens here

Locate the thermostat housing. You'll need to disconnect several electrical connectors to make space and unbolt a hose bracket that partially covers the thermostat housing. This hose bracket is secured by a 13mm bolt. There's also a small bleeder screw on the front of the thermostat housing that can be checked. The presenter also notes that there's a connector stand with three additional bolts (one directly behind the coolant hose) that need to be unbolted and moved out of the way to fully remove the hose bracket.

Goal: Gain clear access to the thermostat housing

Tools and materials

  • 13mm Ratchet Wrench — Removing bolts on the hose bracket
  • Connector Stand — A bracket holding connectors and supporting the hose bracket; needs to be moved
  • Electrical Connectors — Various electrical connections in the area; need to be unplugged
  • Hands N/A — Disconnecting electrical connectors
  • Hose Bracket — Metal bracket holding hoses; needs to be moved

What they say

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never actually taking this off before but maybe I won't put it back on now just from what I briefly gathered look into some other videos and stuff on this is that you unplug these to unbolt this hose bracket here so that all this can lift up out of the way I'm gonna try to do this without removing the AC compressor because I read in the comments in somebody else's video that you could do that and like four people liked it so we're gonna try it see if that actually works so right now I'm just gonna in this little bracket deal here go take 13 ratchet wrench get that off and I'm not totally sure what all else will make itself present after that to pull this whole housing up but we'll see so guy now those bolts out this front one here is just the bleeder I open that just to see if anything came out and it was like right at the tippy-top so I guess that's good it's loose now I don't know I got to have a thermostat already up there I'm gonna see if I can pick this up enough to get the old ones out put the new ones in without having to redo disconnecting this stuff so we'll see

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