Depending on the year of your CJ, the best approach is the blower motor upgrade (using a Chevy blower motor) and a new heater core. Mine really works well after I did this, as do others who've done it.
looking at your bio it apears you have an 87 CJ7 so yeah, the GM blower upgrade would be great. Also take the time to renew the seals and look for air leaks in the blower housing.
There are aftermarket heaters that work well but realy take more work to plum in the defrost and fresh air anyway.
I'll throw another vote out for the blazer blower swap. I just did mine a couple weeks ago.
The hardest part is getting the old stuff out. A dremel made quick work of enlarging the firewall hole for the bigger motor.
Now it literally blows dirt off the floor... And into my eyes
But it blows like a *&^%$@! :thumbsup:
I'm pretty sure that was a typo, because I'm fairly certain he doesn't have an 87 CJ.
But I second the blower upgrade. You can do it for less than 20 bucks. Mine works great. But, if you still need more heat after that, you can buy one of the auxillary heaters from any of the major jeeps places ( http://www.4wd.comhttp://jcwhitney.com have them). They are basically a second heater core with a built in blower. You just run some hoses to it and wire it up. Good luck!
My heater core went out last year and I didn't have a heater til this past fall of 05. I replaced the heater core, thermostat, blower motor switch and the blower motor (chevy blower motor upgrade). Talk about a major improvement. I never have to go past the middle speed (3 speed motor) and I'm toasty warm. More importantly, my wife is toasty warm and leaves her down comforter at home.
I would recommend replacing all especially since you're draining the radiator anyway.
qustion when i go to napa for a chevy blower motor what kind of chevy ? a 78chevy 3/4 4x4 pick up ? or a ???
a good heater in a cj funny. i plumed a bus heater in to the back of my cj. it dont help with defrosting the windows.
I've got soft doors and bought the collapsible rubber seals from auto zone and then put those around the areas needing them on my door to make it fit better.
End result. Less draft, less door flapping and less noise.
hey guys and gals, just called NAPA and they asked me if it was a standard or heavy duty motor? which one did you get? i think i'm going to do this this weekend
If you're going to do the vehicle reference thing, I've noticed most people recommend crossmatching vehicles with air conditioning...
Either way -
1) Autozone
2) PM102(a)
3) Go
Advance Auto #: 5012066 or FAA 35587
Autozone #: PM102 (siemens)
NAPA #: 655 1715 or Siemens #PM123X (Siemens)
Parts Master / 4 Seasons #: #35587
Not sure why the different Siemens part number for Napa, or what the letter designation means, but 102a worked without a hitch for me, and the above numbers are reported to have worked for others. Just be cautious of the blower shaft length as advised above....
They also had a premium one for $40 that he said was made in the USA and was no difference. I love my country, but I am not paying twice as much for the made in the USA sticker.
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