Heater Blower Upgrade question

Tombredone

New member
I have just completed the Blazer heater blower upgrade.. I also installed a new heater core.. I ran the jeep for a while, but all I got was cold air.. Is there something else I have to do.. Prime the core? and if so how?

Thanks
THomas
 

I did the same mod on a cj7, blazer motor and new heater core. Check your thermostat. If any thing the blazer motor outblows the small heater core.
 
Fresh One

Make sure you have the heater box controls set to heat. I had a cable swaped around and like to have never figured out what the problem was. tug
 
It could just be that you have air trapped in the core. I think I have read that happening to people on here before. You could disconnect the top heater hose and try back-filling into the core.
 

I changed out by water pump and thermostat... works great.. If any of you are considering the blazer upgrade.. DO IT>. it works great...

Thanks
THomas
 
i gotta look at the steps involved in the blazer upgrade... my core is spraying steam ONLY when i turn left, and it makes for no visibility
 

Hey Snitty I am sure most of your know this already but I have to mention it. We had a guy in Juneau AK that had his heater core start leaking in his Chevy. He ignored and continued to plow snow all night. About 2 weeks later he start loosing all his hair. (And I mean ALL) The Doctors thought he might have some type of cancer and sent him to Harborview in Seattle. It turned out that brething all that Glycol poisoned him quite badly. He made it through the treatment after several months. But now I stay clear of that smell as much as possible.

Also having you rig heater controls set on RECUIRC insted of fresh will cause everything to fog up inside during wet weather.

Anyways just passing on some weath of worthless information I have.

Can the Wrangler do the Blazer upgrade? I loved my Wrangler heater, I used to crank it with only the doors on and she alsways kept me warm. But my CJ.........................see-ucks!!

From Alaska and I have never had the Blazer upgrade on any of my CJs. :roll:
 
thanks for the heads up... i'm gettin on that core asap then... i can smell the antifreeze in the cab... so i should get that swapped out like yesterday
 
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