Picked up my summer rims... gave them a test fit

 

Replaced the blower motor on the HVAC system. I found about 6 good handfuls of tamarak (western larch) needles in compartment and jammed up against the AC condenser and blower motor control module. I thought I had them all out and then I realized I could remove the motor control module and I found its surface all packed with more needles. For my auto HVAC system I think this module senses the air temperature and it could not have been running correctly with it covered with the needles.

I installed a blower motor from Rockauto, the 4-seasons brand. I purchased a new drain hose but it would not fit which meant having to remove the original and put Rescue Tape on the parts where I nicked it during the removal. The pictures show how it hooks up. I also trimmed a bit of the part that goes into the motor housing to ensure it did not interfere with the motor.

Here are some pictures:
The handfuls of needles: http://i.cubeupload.com/Isvp5h.jpg
More needles: http://i.cubeupload.com/upLJMq.jpg
Repaired drain tube and relief for it:http://i.cubeupload.com/T7n8Q0.jpg
The nipple onto which the drain tube fits:http://i.cubeupload.com/lCbEmQ.jpg


And a link that shows the backside of the control module.
http://www.rockauto.com/en/moreinfo....353619&jsn=480

It was a straight forward replacement but like just about every other system on a Blazer, things can be hard to get to because so much is crammed into such a small package!

P.S. I forgot to add that the GM manual explicitly instructs NOT to use RTV silicone. I think it is because as it cures RTV releases corrosive gases. I used Permatex Black Rubber Sealant to seal where I cut the rubber cover off to get access to the motor.

 

Good job Christine... have you notice a difference in the auto temp setting?

 

What is "auto HVAC"?

 

Thanks! It took about 4 hours to do. The rear-most bolt that holds down the coolant reservoir was a pain to get out. I finally was able to do it without breaking it.

I haven't driven it enough to be sure if the needles packed against the module surface made a difference or not. For one thing I'll have better airflow through the AC condenser!

 

"Auto HVAC" is what I call the heating, ventilation, and AC system that has the automatic climate control; the type that allows you to pick a set-point for the temperature instead of having to manually adjust the heat and blower motor settings.

The auto systems have this control panel: https://www.ebay.com/p/99-05-AC-Clim...51244257&rt=nc

 

Stylin'!!!

 

Christine, you sure you didn't destroy a squirrels nesting?! LOL

 

That's funny! No, no squirrels. Well, at least I didn't find any nuts stored in there.

 

Just nuts on the outside?