On my Z, beside my ac not working (im not sure why), my blower makes a weird noise when i turn on the ac/defroster. It actually sounds kind of like if a kid put a baseball card in the spokes of his bike.... kinda like a clicking/rubbing noise. I was wondering if anyone else has encountered this and if so, what the hell is it? It still blows fine, but would i need a new blower to fix the problem?

Also what normally is the problem when AC's stop working on early 4th gen fbody cars? Compressor, evap, condensor... ect...? Thanks in advance.

 

The PCM monitors the pressure in the AC system; if this pressure is below a minimum valve, the PCM will not command the AC compressor to turn on. Most common cause is a leak in your system. A scan tool like Diacom can read your AC pressure.

 

my 96 monte carlo did that last summer. i pulled the fan and a bunch of leaves and junk was in there. have you ever had it off? if you don't get a bolt in right and it falls out it will cause it to sag a little and make a weird noise also