Why does my Oldsmobile silhouette blow hot air with the ac on when I have already filled with coolant and does not seem to be leaking anything?
I have a 1998 Oldsmobile Silhouette with the same problem. Shop
mechanics have told me theirisa leak somwhere in the A/C system
that cannot be detected. I have had the AC system filled with dye
twice and no one can find a leak. They tell me that the leak must
be minute which is why it has been undetected. My next step for
this situation is to purchase an over the counter leak sealer and
see if that does any good. The local auto parts store have a kit
that will convert the system from R12 freon to R134a which I will
have to do before I fill the system with freon.