Alright, so today we’re replacing a thermostat on a Jeep Grand Cherokee.
It’s a…this is the thermostat part right here.
So basically all this does is when the radiator fluid heats up to a certain temperature this
allows the coolant to go inside the engine.
So the coolant comes in here through the radiator and then this part allows it to pass through.
With the uh…the place where it’s stationed is right here.
I already took the wire off that goes to the temperature sensor.
There are two bolts at the top, one right here and one at the bottom.
I’m being kind of lazy, I don’t want to take apart the whole radiator or take off
the fan belt, so I’m just kind of working around those two things.
You can see right there it’s starting to come apart.
So I got those two bolts undone and right inside of that…sorry the camera…right
inside of that is the thermostat that we’re going to replace.
So all I got to do is take that out and pop the new one in.
So I will show you how to do that.
So I got this part off.
That’s what that looks like on the inside.
On the outside you can see the two bolts and right inside of there is our thermostat.
If you go down right here I have the bucket underneath where it’s catching all the radiator
fluids coming out.
So not a whole lot comes out but you know, enough you want to catch it all.
And then you definitely want to do this when the engine is cool.
I just barely got back from the mechanics…well the parts store, and yeah, this thing is freaking
hot right now.
But that part right there just comes right out.
Sorry about the camera angle there.
Alright, so much for trying to do it the easy way.
This little guy fell down and…the bottom bolt, sorry, on the little mechanism here
that keeps in the thermostat fell down in-between my pulleys so I had to pull off everything
anyway.
So, so much for the being lazy part.
But it’s better now cuz you can kind of see, you know, where the thermostat goes.
You just take the thermostat, this is the old one, just kind of chills right there.
There’s a little groove usually that kind of guides in where it sits.
You can use that.
It’s just depends on what type of thermostat you have.
So just a quick run through of how to get to this point if you do need to take off everything.
The fan sits on this.
You unscrew the 4 fan bolts, the fan comes off and then you pull out the plastic shroud…this
guy…with the fan at the same time.
And then there’s a little metal pulley, looks like this, that sits on those four bolts
and you pull that off.
Well, you actually have to loosen up the string pump pulley first.
How you do that is there are two bolts down there in the back that you loosen up, don’t
take them out, just loosen them up.
And loosen up this one right here.
And then there’s one right down there at the bottom that you unscrew to just let this
slide down a little bit and then the whole belt is able to become loose and then you
can pull off that pulley.
So now it gives me much better access to this anyway so I’m kind of glad I did it.
Make sure you take a scraper of some kind; I just have an old paint scraper lying around,
and get off the old gasket.
Both the motor side and the other side on here.
You can kind of see, this is kind of cool, where the temperature sensor is.
And the temperature sensor goes right inside there.
So if you ever need to replace that it’s pretty simple as well.
There’s another temperature sensor on the back side of the engine and both of those
are important.
Like one goes to your gauges, the other controls other things.
Alright, got everything back in place.
Got the hoses all snapped back on…well, just about, I still have to finish off this
guy.
But yeah, we’ll see how it runs.
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Thanks.