Ford Explorer & Mercury Mountaineer: Remounting Blower Motor & Evaporator Core

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Remounting your car's blower motor and evaporator core can be simple if you follow just a few steps. Learn to remount these parts from a certified mechanic in this free automotive video.

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Video Transcript

Here we're demonstrating how to change a heater core on a late model Ford Explorer or Mercury Mountaineer. In this step we're going to demonstrate the proper service procedure for reinstalling our blower motor and evaporating core box assembly. Now I have the component right here, it's this great big guy here. And you're going to want to take care with it because there will be vacuum lines running through various locations on it. Now this device sits right on the studs for the air box, the studs are going to go through here and here and have bolts that go on the top of them. What I'm going to do is take and slip it down into position right now. You're going to want to make sure you don't pinch any lines or hoses back behind in between the box and the firewall. So take an extra look and make sure you don't have anything trapped back there that you're going to need to get access to later. Going to take and slip it down into position. Alright, once you have it wiggled down into position you can take and slip it onto the studs in the upper and lower corner. Right there. From here we're going to take and spin on the two nuts on the outside, put the one bolt on, and there's a stud on the inside we need to put a nut on as well. Alright we're going to go ahead and start the one bolt we have right up in here in the upper corner, I'm going to run it down most of the way by hand. Now being that the rest of the system sits on studs, you can run it down fairly tight, because all the other bolts are lined up to the studs protrude through the air box, right there. I'm going to go ahead and put a nut on the stud right here, you can get a look at it right there is where I'm going. Got that one down pretty snug by hand, and we have that one stud way down in the bottom that you can see when I tighten down the air box to the firewall, I'm going to go ahead and put the nut on that one as well. Alright, we're going to go ahead and tighten them down, my quarter inch ratchet and eleven millimeter socket, right there. Get this upper one, and now for the lower one, alright. And there we go. That is the proper service procedure for remounting your blower motor and evaporator core box to the firewall.


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