Alright, this goes out to the people who are new at doing this job! It's really easy but there are a couple important things you need to know.
These are the things you will need:
1) Thermostat: 90916-03117
2) Thermostat Gasket: 16346-66020 (order two, mine slipped and got crushed tightening up the housing)
3) 3 x M8 1.25 Flange nuts
4) 12mm and maybe 13mm wrench for the new nuts.
5) Ratchet with 12mm and 13mm drives
6) Blue Loctite (not necessary)
7) And of course what every other person on here says when doing work on our trucks, a nice cool set of crocks. Oh, I mean some brewskies!
First things first. I really didn't want to do this but the more I looked into my engine bay the more rational I became. I decided to drain my coolant because I didn't want coolant all over my belts and my compressor or condenser (whatever it is) when I removed the thermostat housing.
1) find the petcock. It stands out once you're under your truck. It's on the drivers side and it's pointed towards the cab. Picture for reference. When it drains it'll come out through the frame hole right below it so have your catch can in place. It'll take about 10-15 minutes to fully drain so start drinking and finding other little projects to work on.
2) Time to remove some nuts! I saw some guys mention removing the heat shield above the headers but that would just be a waste of time. Use your wrench to do quarter turns to loosen. It's a small bolt so it only takes about 5 minutes.
3) This was a little tricky but found the best method to take off the nut on the bottom was to just use a ratchet wrench WITHOUT an extension (saw this mentioned as well but with my size tools it didn't work)
These are the things you will need:
1) Thermostat: 90916-03117
2) Thermostat Gasket: 16346-66020 (order two, mine slipped and got crushed tightening up the housing)
3) 3 x M8 1.25 Flange nuts
4) 12mm and maybe 13mm wrench for the new nuts.
5) Ratchet with 12mm and 13mm drives
6) Blue Loctite (not necessary)
7) And of course what every other person on here says when doing work on our trucks, a nice cool set of crocks. Oh, I mean some brewskies!
First things first. I really didn't want to do this but the more I looked into my engine bay the more rational I became. I decided to drain my coolant because I didn't want coolant all over my belts and my compressor or condenser (whatever it is) when I removed the thermostat housing.
1) find the petcock. It stands out once you're under your truck. It's on the drivers side and it's pointed towards the cab. Picture for reference. When it drains it'll come out through the frame hole right below it so have your catch can in place. It'll take about 10-15 minutes to fully drain so start drinking and finding other little projects to work on.
2) Time to remove some nuts! I saw some guys mention removing the heat shield above the headers but that would just be a waste of time. Use your wrench to do quarter turns to loosen. It's a small bolt so it only takes about 5 minutes.
3) This was a little tricky but found the best method to take off the nut on the bottom was to just use a ratchet wrench WITHOUT an extension (saw this mentioned as well but with my size tools it didn't work)
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I only wear these if I'm doing simple jobs like these.
But I'm a little apprehensive as I've seen some posts talking about how fragile the sleeve is and how you need to finesse it out a special way. I'll add to the "how to" when I do it. Btw do you know the part number for the hose that's connected to the thermostat housing? Mine needs to be replaced.
