- Jan 3, 2015
- 77
2008 Trailblazer 4.2, 85,000 miles.
I noticed this noise about a month ago when idling but also when the gas pedal is slightly touched. The noise is more noticeable on the passenger side. In the video you will hear the chirps at 3-5 seconds and 24-40 seconds. Any ideas? **I had my wife rev the engine a couple times during the video
I just changed the belt, tensioner and idler pulley and that changed nothing on the sound. Original water pump, fan clutch, ac compressor and power steering pump. When I had the belt off, none of the pulleys seemed off. Also, my power steering seems good and no groans when turning the wheel, although the sound, the chirp if you will, may be coming from somewhere near the power steering pump area.
I noticed this noise about a month ago when idling but also when the gas pedal is slightly touched. The noise is more noticeable on the passenger side. In the video you will hear the chirps at 3-5 seconds and 24-40 seconds. Any ideas? **I had my wife rev the engine a couple times during the video
I just changed the belt, tensioner and idler pulley and that changed nothing on the sound. Original water pump, fan clutch, ac compressor and power steering pump. When I had the belt off, none of the pulleys seemed off. Also, my power steering seems good and no groans when turning the wheel, although the sound, the chirp if you will, may be coming from somewhere near the power steering pump area.