Quote:
Originally Posted by TRD VVTi
BG is the only one that I know of that recommends drilling a hole in the case.
It may work the same but I'm not a fan of drilling extra holes anywhere when it can be avoided.
I would think that it works better the way other cleaners are used. That is, injecting the foam through the drain, letting it soak, and then removing the tip from the evap. drain so that the foam which has now turned back into a liquid sweeps everything out with it as it drains out.
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AirSept Odor Shield and
Keep-It-Cool Evaporator Treatment application options show them going in at the blower or drilling a hole in between the blower and evaporator.
There is also a
AirSept Coil Coating product (and probably other manufacturers) that can be used after cleaning or when new to prevent mold buildup for up to a claimed 3 years.
The stated reason for more mold problems on newer cars is that the evaporators are being made smaller to fit in smaller boxes but still need the fin surface area so the fins are increased in number and are being placed closer and closer together which makes the fins harder to dry out.
Linear Mode
