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-   -   How to clean exterior Evaporator Core (https://67-72chevytrucks.com/vboard/showthread.php?t=702315)

71CHEVYSHORTBED402 03-27-2016 07:11 PM
How to clean exterior Evaporator Core
 
I'm asking...ha!......

Seems water, degreaser, a brush and blow dryer are the ticket, but I thought to ask before I do something I shouldn't. Thanks.

F.A.A.benny 03-27-2016 08:56 PM
Re: How to clean exterior Evaporator Core
 
That's one way to do it

SS Tim 03-27-2016 11:42 PM
Re: How to clean exterior Evaporator Core
 
GM has a really great evaporator dip cleaner we used for problem cars that was not only a cleaner but a anti-growth protective coating as well. Try you local dealer for more current information and what it would cost you.

F.A.A.benny 03-28-2016 04:06 AM
Re: How to clean exterior Evaporator Core
 
The first thing I do is use compressed air to blow out as much of the crap in between the fins as possible.

lugnuts09 08-11-2017 10:06 PM
Re: How to clean exterior Evaporator Core
 
1 Attachment(s)
What's the best method of cleaning this? Trying to overhaul the A.C system and replace the heater core.

HO455 08-11-2017 10:55 PM
Re: How to clean exterior Evaporator Core
 
There are lots of coil cleaning products out there. Here is a list from Grainger.

https://www.grainger.com/category/co...leaner&sst=All

Bigdav160 08-12-2017 08:30 AM
Re: How to clean exterior Evaporator Core
 
When I see an oily spot, like on the upper right corner of Lugnuts evaporator, I think "leak".

lugnuts09 08-12-2017 10:49 AM
Re: How to clean exterior Evaporator Core
 
I've never really worked on an a.c. system before. It hasn't been hooked up since before I bought the truck. They even bypassed the heater core. I sure hope it's not a leak. All of your input is greatly appreciated.

F.A.A.benny 08-12-2017 05:24 PM
Re: How to clean exterior Evaporator Core
 
Quote:
Originally Posted by lugnuts09 (Post 8014924)
I've never really worked on an a.c. system before. It hasn't been hooked up since before I bought the truck. They even bypassed the heater core. I sure hope it's not a leak. All of your input is greatly appreciated.
It should flushed and pressure tested. I would not install an evaporator without pressure checking. I know some guys do take that risk but these evaps can look brand new from the outside and be corroded from the inside. Never know for sure until it's pressure tested

F.A.A.benny 08-12-2017 05:26 PM
Re: How to clean exterior Evaporator Core
 
Also I'd remove the expansion valve to flush and pressure check

lugnuts09 08-12-2017 06:59 PM
Re: How to clean exterior Evaporator Core
 
What type of shop can I get that done at?

F.A.A.benny 08-12-2017 07:59 PM
Re: How to clean exterior Evaporator Core
 
Quote:
Originally Posted by lugnuts09 (Post 8015182)
What type of shop can I get that done at?
Not sure but if you can't find one, you can send it to me..I do this all the time


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