I've done it. To this day I do not understand why the dashboards are not designed so that this little motor can be easily replaced.
The first thing you need to do is take the drawers out of the center wood box and find all and any screws holding the box to the floor, to the dash, to the front firewall. Remove the box. Next, remove the screws holding each of the little dash air vents in the front of the dash. Remove those vents, disconnecting the air hoses from them. Now you can look around in those empty holes where the dash vents used to be. You will find, at random, some screws in the top of the holes that fasten the top of the dash board to the front of the dashboard. Once you have removed them, you can begin to gently lift the passenger side of the dashboard top up. As you slowly proceed, you will find screws that you will need to remove.
The goal is to get the passenger side of the dashboard top lifted up high enough that you can then get the passenger front of the dashboard pulled out far enough that you can get at the little blower motor that you need to replace.
You may also have to remove the vinyl trim from around the entry door so that the front of the dashboard can be pulled out far enough to get at the blower motor.
Our coach also has a wooden glove box in the dashboard on the passenger side. I had to remove that from the dashboard to find some screws.
It's a long, slow, tedious job.
A couple of tricks:
One. The varnish on the wood box can react with the vinyl dash, so in effect even though you have all the screws out, the wooden box is still 'glued' to the dashboard. I used a small plastic blade to gently work between the wooden box and the vinyl dashboard, without damaging the vinyl, until the box was free.
Two. When reassembling the dash, be careful when reinstalling the screws in the dash vent holes that hold the top of the dashboard down. It's real easy to have the sharp tip of the screw poke up through the dashboard vinyl. You don't want that to happen. Use your fingers to gently push the dashboard vinyl down to check for sharp screw tips resting just below the surface of the vinyl. I had to grind the end of some of my screws, by trial and error, to get it right. I don't know how they put those screws in at the factory without damaging the dashboard vinyl.
Three. After you have it all back together, you may be frustrated with the dashboard squeaking. This is the vinyl of the one dashboard piece rubbing against the vinyl of the other piece. I have liberally used silicone spray in the joints to help to eliminate this. There may be something better to use.
Hope this helps.
Oh yes. After all this work, you'll probably be wishing that there was a heavy duty motor instead of this cheap little one. I actually wanted to get a higher volume blower, but no luck. All I could find was a new standard replacement. Most are them are now made in China. Part# PM105, for a GM pickup truck.
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2016 Creekside 23RKS
2012 Ram 2500 Laramie 4X4 Cummins 6.7L
Canada, eh?
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