Correct. I waited for the car to cool down after I drove it home from work before I started working under the hood.

 

I am going to assume that this an alternative to use. Home Depot carries it and it appears way cheaper at $5.98 A can. Versus $15.99 a can for CRC Coil Cleaner at NAPA.

 

Sometimes I wonder why I bother typing.

GM and most other auto makers have their own in their parts departments

 

I have one of those household drain cleaners....


I think I am going to give it a try.

 

Sorry to piss you off. I went to 3 auto parts stores and none of them had any kind in stock. I went to Google and found that at Home Depot.

You suggested I get some...so I did. Though I have no idea where I am using this...because you didn't bother typing additional information.

 

You got the can with no directions on it? Not pissed just weary.

 

This was at home depot, so marketed for home AC units. It doesn't have directions for automotive use.

I remember another recent thread, someone sprayed their product directly into the dash vents. It didn't work, no surprise to me. How would it get to the pan? Seems like you'd want to spray it into the drain tube. Maybe multiple applications.

But I've never had any product like this in my hand.

 

The coils are just inside the center vents, the drain pan is directly below the coils. The theory is; it kills the slime mold in the pan that is clogging the drain hole. It won't help if the clog is from an oak leaf.

For instance, but not limited to these examples from AutoZone. I would think the Odor Eliminator would work best, that is only my guess. I have never had either problem.


I have used the foaming cleaner from Home Depot on my home AC with great success, highly recommended for that purpose.

 

Almost any foaming a/c cleaner can be used for the ductwork and louvers and the evap coil
Best to reach the coil thru the drain pan outlet. Squirt a LOT in there and might have to do it several times.
The condensate created will wash off the cleaner.
For the pan and outlet, a short 1/2 second blast with a water hose works wonders and hurts nothing if the interior has already leaked a bit and only use a short blast.
These cleaners are now alkyd based instead of acid based to prevent unnecessary damage to the coil.

Here is one for both applications but primarily marketed for vents

3M Air Conditioner Cleaner Foam

Description -

A foam Based Aerosol cleaner for cleaning Automotive Air-conditioner coils, a/c ducts, louvers and similar passages quickly in automobiles,households,offices & showrooms etc

Lowes has some other brand for 7 bucks.

 

I sprayed up the drain hose the best I could. I also sprayed in the vents based upon some YouTube videos. No success yet. The drain tube having two sides is strange. I am assuming it's draining into the tube from two different areas. I can't get very far up in the left side. It feels like I'm hitting a wall.

I have tried Advanced Auto, Napa and O'Reillys. What's one more parts store at this point.

I saved a ton going to the junkyard yesterday pulling my own parts. I can afford another can.