2005 GMC Envoy Q&A
2005 GMC Envoy Question: I have a whirling noise coming through the air filter after the fan stops.
The whirling noise continues through the Air Filter after the engine is shut off. Prior to this I was told my Fan Clutch had failed. We replaced the clutch but the sound continued for a short period each time there was a cold engine start. Only by accident I heard the sound again because my wife turned off the motor to go back into our home to get something. I tried it several times and the noise can be heard through the air filter for a few seconds after the fan has stopped turning. What can cause this? - Clipped Wings
Is your air filter clean, and housing secure. Pull the filter and look through it and see if you can see light through it. Check throttle plates for black junk, maybe need to be cleaned. - ProfessorG
I was told the whirling noise was caused by my Fan Clutch. The clutch was changed and the noise continued. Only by accident I was standing in front of our Envoy when my wife turned off the engine...