Replacing a Thermostat and Housing on 3.8L Jeep Wrangler JK
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- Опубліковано 4 лют 2021
- Update 12/28/2020: Some references will say you should torque the bolts to 250 in-lbs. This is not correct! Only torque to 105 in-lbs. If you try to go higher, the bolts will fail at around 140 in-lbs. I just learned this the hard way! Lucky for me, the bolts stretched vs. snapped so I was able to back them out. I have to buy new bolts (M6-1.0 by 30mm) and will tap the holes to clean them out.
DON'T OVER TORQUE!
Original video description from July 20, 2019:
I noticed some residue around the interface between my thermostat housing and engine coolant intake so decided to replace both the thermostat and thermostat housing since both are pretty inexpensive. There are plenty of videos showing how to do it but I couldn't find any showing the actual replacement of the thermostat itself, so here you go.
2011 Jeep Wrangler JK Unlimited
75,500 miles
I'm the first/only owner and this is the first time replacing these parts.
Thermostat is from Autozone, Part Number 65695
www.autozone.com/cooling-heat...
Housing is Part Number 4666149AA. I got mine from Autopliciy.com but you can find it cheaper elsewhere. Be careful - the picture for many of these show a thermostat inside the housing when in actuality you only get the housing. If you think you're buying an assembly of housing + thermostat, be really sure the description says that's what you're getting.
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Disclaimers:
This video is NOT sponsored by any of the brands mentioned throughout this video or video description. All thoughts mentioned are my own. Some links provided are affiliate links. They do not cost you anything, but I make a small percentage from the sale. Honesty is key on my channel, thank you for supporting me!
I am a Do It Yourself, also known as DIY, mechanic. I am NOT a professional mechanic. I do not have any formal training in the automotive field. I assume no liability for anything you choose to do to your car/vehicle or equipment before or after watching one of my videos. All DIY repairs or modifications you perform are made at your own risk. Sometimes, even if you've done everything the right way, you can destroy or damage one or more things on your car or equipment. You must understand this, but by leveraging knowledge and patience, the probability of encountering one or more problems can be reduced.
Also, if for some unfortunate reason, I do give incorrect instructions and something breaks because you followed my instructions, I will NOT reimburse or pay in any way for whatever cost that may be incurred due to following my wrong instructions.
Lastly, please don't do anything to your vehicle or equipment unless you yourself feel comfortable and confident in doing so. - Авто та транспорт
Check out the video description for extra info, parts, tools, torques, and any updates.
Your video was 0% BS. I intentionally seek out this style of content. Please know, even though this isn't a "popular" upload, that it indeed does help a lot; and it deserves more views!
Thank you!!
Thanks for watching and for the feedback - it really keeps the motivation up to keep doing them.
My uncle was helping me take it off. I didn't get a chance to take a picture for the thermostat orientation. You're a hero. Thank you for posting this.
Thanks for watching and I’m glad it was helpful!
Mopar part number for the thermostat ONLY on 2008 JK 3.8 is 68273161AA-001. Doesn't come with a gasket as it's not needed. It has a white rubber seal. Good luck!
Henceforth, the term "goopage" shall be used in all thermostatic replacements for Jeep !
Thank you, sir !
👍
This is the highlight of my week. Thanks, Wulf! And thanks for watching.
Thanks! Very helpful. You ROCK!
Thanks! And thanks for watching.
Thank you for the great video!
Thanks, and thanks for watching!
Thank you
helped a lot!
Glad it helped. Thanks for watching.
Thanks
Thanks for watching.
Is it make water out from how match because my car from 93c to 97c. ??
Good video, thanks. Question- which aftermarket radio do you have that can read water temp and how does it connect to OBD computer?
The head unit I installed is the Pioneer AVH-2440NEX. That’s one doesn’t seem to be available anymore but the 2400 is; here’s a link (amzn.to/3kbaaB8). The cable from the head unit connects to the OBD port at the bottom of the dash. You run the cable behind the dash and it plugs in just like a code reader does. You have to unplug it if you want to use a code reader or a mechanic needs to use the port. This head unit can also reads the OBD codes and display them. A lot of aftermarket head units come with this capability I believe.
@@CarbonsDIYGarage thanks, I’ll look for something similar online! Appreciate all the info
Just replaced mine today on my 2010 Wrangler JK. My new one made a clicking sound as the engine warmed up. It stopped after the engine became hot. Seemed like it was trying to open up. Any idea why? Thank you for your post.
When I read your comment, my first thought was that the valve or spring might be sticking, but since it’s brand new maybe it just needs to “break in?” I don’t really know but maybe someone else will comment on it?
Best you can tell, is it working properly?
Thanks for watching, Harry; glad the video helped with the replacement at least.
I bought the mopar thermostat 68273161AA
Instruction says
Before installation of this thermostat, using a sharp hobby knife, trim the locating tab of the perimeter gasket flush with the outer surface of the gasket.
I didn’t see you trimming the thermostat gasket to be flush with the thermostat housing. Did you run into any future issues?
I didn’t modify the thermostat gasket and have not had any issues. Good insight, though. If it starts leaking in the future I’ll have to take a look and see if an untrimmed locating tab might be the cause.
Thanks for watching.
Where did u get the thermostat housing? I’m looking on autozone and advanced auto and can only find the thermo stat
When I did it, I reused my old housing since there was nothing wrong with it. That said, this one on Amazon should work (Dorman part): amzn.to/3DZf8b0 or this one (Four Seasons) amzn.to/3UqcUa4
What size hose clamp can I use?, I don’t like the screw ones
I believe the OD of the hose is 1-7/8" so you just need a spring clamp that is appropriately sized for that size hose.
Good luck, and thanks for watching.
My oring seal won’t seat in the housing any info on that?
Thanks for watching, Carlos! Unfortunately, I don't think I'm much help with this one. I've replaced the thermostat twice now since I've owned the Jeep. Both times the o-ring came as part of the thermostat I bought and the whole unit just dropped/fit right in. I didn't have any issues seating it.
Assuming it's the right part for your model/year and you've tried the obvious "push it in with more effort," I don't know what to offer other than trying a different part (maybe you got a bad one) or look for build up or something inside the housing that's preventing it from seating.
Not much help, I know. Sorry - but good luck! If you figure it out, please let everyone know in case others have the same issue.
Thanks again.
Some gaskets have a locating tab on the gasket that needs to be trimmed off. That could cause it to not seat.
just wondering if you drained the coolant first? Partially?
Nope! Did not drain the system first. You'll get some coolant that'll spill from the upper hose until you bend it back/clamp it off and from the thermostat housing but it's not that much. A bucket under the front of the engine is a good idea.
Thanks for watching, JP.
Do I need to change the housing as well or just the thermostat?
@@autotrimmers6353 You don’t need to change the housing unless it’s broken or cracked. I chose to change mine since the thermostat was leaking and I wanted to be 100% sure that the leak was purely from the thermostat and not the housing. I didn’t want to change the t-stat alone and still have a leak, since the housing isn’t really that expensive. I hope that helps! Thanks for watching.
@@CarbonsDIYGarage thanks
Sorry maybe I missed it. But why did you change the thermostat?
Thanks for watching, Jaime. I describe the why in the first minute of the video. Coolant was leaking/weeping out of the seal between the housing and the block. The thermostat itself was functioning fine; the seal was bad.
@@CarbonsDIYGarage gotcha I did hear that. I thought maybe there was check engine light or something like that.
@@JaimeMelendez131 Ah! Nope, just a coolant leak. But this one I replaced in the video only lasted a year (was from autozone) before I had to replace it again because the thermostat stuck open and the coolant was too cool. I’m pretty sure that did cause a check engine light (but at least it didn’t stick closed and cause me to overheat!).
@@CarbonsDIYGarage this same thing just happened to me! Lol I’m getting a check engine light on it and I see it’s been leaking. I bought it less than a year ago too… autozone. Didn’t think it was possible but I’m glad you confirmed that it is lol o well.. time to do it again. Sigh.
@@jorgezamora5783 and here's another follow-up. I noticed last weekend that it looks wet around the housing again. After checking it a few different days, sure enough, it looks like it leaks a little bit of coolant at that seal when the seal is cold - it doesn't leak after the engine's warmed up. I'm going to let it ride for now but it looks like I'll need to replace the thermostat again - because of the seal. This one is a MCS part from O'Reilly. Cheap enough part but the coolant is expensive! Very frustrating. This seal lasted about 18 months.
Thanks for watching, Jorge.