The belt has been squaling for the last 2 days.
This morning the compressor pulley locked down and ruined the belt.
The belt started smoking.
It was blowing hot air and I am sure needed freon before this.
I took off the serpentine belt and tried to turn the pulley on the compressor.
It is locked down tight.
Was there a safety feature on these compressors when they got low on freon, to lock down like this and not turn to prevent burning them up?
Would refilling the system with 134A kick it back on?? I did notice the 10 amp fuse blew as well, replaced it and nothing changed.
Or is it time for a new compressor?
Use your key or electronic fob.
The compressor locked up because it was low on oil in the first place and when you recharged it with freon it had no lubricant.
To test a compressor if locked up read the tag on compressor for locked rotor amps, then bypass safety therm-o-switch found under protective black cover on compressor, and with a clamp-on amp meter momentarily run compressor to check amperage.
Contact a GM dealer and see if they can make you a copy of the keys from the VIN. Otherwise you may have to call a professional locksmith.
it is under the dashboard, this is not locked, just lift it.
Compressor may be locked up.
AC compressor is locked up.
It probably is the compressor that is locked up. If it is ok until the a/c is turned on, the compressor is locked up. If it is just the pulley bearing a special puller is required to remove the pulley and bearing.
if its locked, it has a serious problem and probably needs replaced
No it can't. The compressor breaks internally and that is why it locks up
They might be locked.
you shouldn't need to unless it set a check engine light for some reason. if it was just a compressor change for, say, the compressor locked up then no. hope this helps.