Eagle Posted March 13, 2011 Share Posted March 13, 2011 I have two or three heater blowers riding in the back of the XJ that died with their boots on. The one that's in the XJ now is nearing the last round-up, too -- lots of squeal when it first starts spiining on cold mornings. Apparently it's possible to buy just a replacement motor for these things, but ... how do you get the blower impeller off the motor shaft without breaking it into ten zillion little pieces? Has anyone done this -- successfully? Link to comment Share on other sites More sharing options...
Blue XJ Posted March 13, 2011 Share Posted March 13, 2011 I'd like to know as well, I have the same issue. the squealing in the mornings is pretty annoying. Link to comment Share on other sites More sharing options...
Blue XJ Posted March 13, 2011 Share Posted March 13, 2011 Just looked on Autozones website, its only $16 for a new blower wheel. I think I'll just pick up a new one, for the price, its not worth trying to save the old one. Link to comment Share on other sites More sharing options...
64 Cheyenne Posted March 13, 2011 Share Posted March 13, 2011 Take the spring clip off, put a spot of oil on the shaft, let sit a while to loosen up. Hold the wheel with the motor hanging, have your helper give the shaft a little kiss with a hammer, pull the wheel off. Watch your toes if the motor hits the floor. $16 bucks saved for trying, and succeeding :clapping: . I don't know if it is worth it or not but the last donor motor I put in sounded iffy, so I squirted a little spray lube into both ends. Works like a charm. Don't use WD-40, not really oil and it's too light weight. FWIW, the old motor gave up when it was -12* go figure....... Link to comment Share on other sites More sharing options...
jimoshel Posted March 13, 2011 Share Posted March 13, 2011 :agree: I have a bench under my vise so it can only fall a foot and not hit the floor, or my foot. I either use Singer sewing machine oil, preferred, or 3 in 1 oil. Works great. Link to comment Share on other sites More sharing options...
jamespwsullivan Posted December 24, 2012 Share Posted December 24, 2012 I know this is an old thread, but it's the only one that came up when I searched "blower motor replacement." I have an '87 MJ and strangely, it seems to be leaking rainwater into the cab through what I think is the blower motor (heater fan motor?) seal through the firewall. it seems crazy but I haven't been able to see any other place the water might be getting in. The windshield seal is good. How do I get that sucker out? I'm not afraid to tear into something but I don't want to take a bunch of stuff loose/apart that I don't need to. Any help or resources are appreciated. Happy Holidays! P.S. this is getting critical since the MJ is my DD for now. The XJ is getting a new floor and heater core. Link to comment Share on other sites More sharing options...
Harley Posted December 24, 2012 Share Posted December 24, 2012 To get that foam seal out you have to take the same steps as you would if your replacing the heater core. That heater box doesn't have to come out but it does have to be loosened. I believe its 3? bolts that go through the firewall then there is one small sheet metal screw that is upside down in front of the box.after that remove the passenger side dash bolt so it has some play. disconnect all wires and vacuum line and then ya can pull out the box enough to replace that seal. Link to comment Share on other sites More sharing options...
cruiser54 Posted December 24, 2012 Share Posted December 24, 2012 I'm doing tis tonight or tomorrow morning. My wife's blower motor quit this morning. Power to the motor. I went up under the dash with an air nozzle and blew the squirrel cage a bit wiht the fan power on. Started running for now. I bought a new squirrel cage for $27 at AZ and the blower for $28. Link to comment Share on other sites More sharing options...
Eagle Posted December 24, 2012 Author Share Posted December 24, 2012 The heater box does not have to be loosened. The blower motor is removed and replaced entirely from the engine compartment side of the firewall, and it's held in place by three nuts. Just unplug the wiring connector, remove the three nuts, and pull the blower motor straight forward. Oh, and squeeze the rubber tube to remove it from the motor housing. Link to comment Share on other sites More sharing options...
Harley Posted December 24, 2012 Share Posted December 24, 2012 The heater box does not have to be loosened. The blower motor is removed and replaced entirely from the engine compartment side of the firewall, and it's held in place by three nuts. Just unplug the wiring connector, remove the three nuts, and pull the blower motor straight forward. Oh, and squeeze the rubber tube to remove it from the motor housing. He was asking about the blower motor seal, not the motor itself. That foam seal is sandwiched between the the heater box and firewall. Sure ya can probably remove the old one without loosening the box. They're usually dry rotted and fall apart easily but getting a new one in won't happen. Link to comment Share on other sites More sharing options...
cruiser54 Posted December 25, 2012 Share Posted December 25, 2012 1/2 hour start to finish. 10mm socket to remove the coolant bottle bracket, 8mm socket to remove blower motor assembly. Swap over squirrel cage, and reverse order= done. Link to comment Share on other sites More sharing options...
xjrev10 Posted December 27, 2012 Share Posted December 27, 2012 Huh glad this came up. In my 88 DD, the blower motor screams something fierce and I'm just waiting for it to die. Only works on high, and I only have defrost. Feet get a little cold on long drives! Link to comment Share on other sites More sharing options...
cruiser54 Posted December 27, 2012 Share Posted December 27, 2012 Replace the motor and resistor. Fix the vacuum issue for your HVAC system and you'll be good to go. Link to comment Share on other sites More sharing options...
Casper2000 Posted January 7, 2013 Share Posted January 7, 2013 Has anyone found a stronger motor ? Or maybe a better cage for a stronger defroster? Link to comment Share on other sites More sharing options...
cruiser54 Posted January 7, 2013 Share Posted January 7, 2013 Refresh/add some grounds and your blower will spin faster. Link to comment Share on other sites More sharing options...
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