I noticed on the under side of my fill bolt for my ctsc AC that there is a brownish, slimy residue, likely just dirty water scum. I cant help but wonder if this is affecting AC performance. Is there any chemical cleaner availble to 'flush' the AC system?

 

I say flush it like your engine cooling system. I bought one of those Prestone diy coolant flush kits and put it on my Toyota truck a few years ago. If flushes like a charm!

 

got a procedure?

 

Sure, pick up the diy flush kit, turn it around so the back side faces you and read the directions























It's easy...seriously.

 

John_z ---> <---r_duff

 

pics on a DIY