If it is stuck, you can use the pocket screwdriver to lift it out. Either way, it should come out easily. Note how the thermostat was positioned and oriented in the well for reference during installation. Install the new O-ring seal around the base of the new thermostat, if it is not already present.
Some come attached in the packaging while others have the O-ring loose in the bag the thermostat is sold in. Make sure it is properly seated on the thermostat flange. Compare it to the old thermostat for reference. The thermostat on your Ford Explorer does not have a gasket as the O-ring performs the same function, so there is no need for adhesive. Place the new thermostat in the well, with the spring facing down into the engine.
Make sure it is seated correctly. Reinstall the thermostat housing and upper radiator hose in reverse of how they were removed. Replacing a thermostat is fairly quick and easy, as far as engine repairs are concerned. With that in mind, you should always replace it when doing any repairs to the cooling system, such as replacing a water pump, cooling system hoses or radiator.
Allen Moore's career includes awards in poetry and creative fiction, published lyrics, fiction books and nonfiction articles as well as a master certification in automotive service from the Ford Motor Company. Moore is a contributing writer for RF Items you will need Drain pan Socket set Pocket screwdriver Replacement thermostat Thermostat housing optional Coolant optional Distilled water optional.
You want to just pry this green tab up and pull it off. Then we'll just pull the tube off this side. There is another hose here. The same thing, push on the green tab. Twist and pull it up and off. Then remove the upper tube from there. Disconnect this lead. On the throttle step motor, there's just a tab on the harness connection. Push it down and remove the four 8 millimeter bolts. Hold your throttle body in place. Remove those. The throttle bottle will come out.
Sometimes it sticks a little more than that. If it is stuck, just tap on it from a couple different angles and pull it off. Disconnect this hose and it'll go that way. Push down on the tab. Use groove jaw pliers to squeeze this clamp. It actually has a little locking tab on it, so when you squeeze it, it'll stay. You can see it actually stays open, so you can just slide it up the hose some.
Then twist on this hose and pull it off of the thermostat housing. Two 8 millimeter bolts hold the thermostat housing in place. Use a wrench to loosen them. Then having a ratcheting wrench really helps the process. Actually, after I loosened them up, they started coming out easy, which actually made it more difficult because you have to kind of reach in behind there and thread them out with your fingers. After this point, screwdriver, try tapping on it. Comes up and out. Looks like somebody used some extra silicone on this one.
Pull the thermostat up and out. We're going to use a vacuum, a screwdriver, and a wire brush. We need to get all this residue out of the inside of the thermostat housing. You may not need to do this. You just need to install a new thermostat gasket from 1A Auto. You only need to do this if somebody used a bunch silicone on the vehicle like they did on this one. If your vehicle is running hot or not circulating the coolant, a new thermostat will fix you up.
Put it in. You want an O-ring gasket. I'm going to use and coat it with just a little bit of motor oil just to make sure that when I put everything together it slides into place correctly. If you're replacing your thermostat, make sure you use a new O ring from 1AAuto. For some applications, we also sell thermostat housings from 1AAuto. We thoroughly cleaned it. Again, we're going to use just a little bit oil just to make sure it slides on to that O ring correctly.
Put it down into place, and then we'll start our two bolts. To seat that O-ring correctly, you want to just make sure that you kind of tighten these up evenly. Don't tighten one all the way up and then the other one; get one seated a little bit and go to the other one.
Just switch back and forth until you get it tight. Final tightening with the larger wrench. Make sure they're good and firm and then reattach this line. Make sure it clicks. Put the hose back in place. You can just take that and hold the bottom of it and just tap it, and it'll go back in place. Just check and make sure the O-ring is in place for your throttle body. I always like to put the two top bolts in and then the two bottom bolts.
You want to tighten these bolts to 89 inch-pounds. I like to start half way, so I've got it set to 45 inch-pounds. Now, I'll set it to 89 inch pounds and tighten them again. We connect the leads. Make sure you lock that tab on. Then, we'll put our intake duct back in. Then tighten with a flat blade screw driver and reconnect these lines on here. We have one here. This double tab goes down into this clip here, so kind of look over it.
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