s79vette
06-20-2005, 08:07 PM
Need some help on dash air in MH. It blows cold air when it works but is
making noise at same time. It's not a squeal or grind but a low growl
or moan that lasts a few seconds and it's intermittent, may be twice a minute or more. I'd hate to use it and break a belt. It only makes sound
with higher RPM's like driving and not at an idle. Sometimes I have to fiddle with selector switches to even get it to blow cold, that might be
associated with bad valve but noise is something else. Steve
making noise at same time. It's not a squeal or grind but a low growl
or moan that lasts a few seconds and it's intermittent, may be twice a minute or more. I'd hate to use it and break a belt. It only makes sound
with higher RPM's like driving and not at an idle. Sometimes I have to fiddle with selector switches to even get it to blow cold, that might be
associated with bad valve but noise is something else. Steve