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  1. General
    Two days ago, I noticed the A/C clutch was not engaging and the viscous clutch radiator fan stayed at high revs, even when the vehicle was warmed up. I checked the blade fuse for the A/C compressor in the fuse box which appeared OK and I removed and replaced the relays on either side of the A/C...
  2. OEM Issues
    Hi all, Quick diagnosis question. My '06 Trailblazer (4.2L, 90K miles) has had a whine from the engine and recently started developing an intermittent chirp and other strange fluttering and scraping noises. Tonight, I removed the serpentine belt and spun some of the pulleys. Idler was...
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