Oskari Posted June 4, 2023 Share Posted June 4, 2023 3l v6 (asn) and serpentine belt. The belt comes off if accelerate hard. The problem started when the ac compressor got stuck and broke the old belt. The current one is 6x1880, but I read that the oem is 6x1878. Could this be the fault? Now I have changed the belt tensioner, alternator and ac compressor. The belt rotates directly and does not resonate. Quote Link to comment Share on other sites More sharing options...
Steve Q Posted June 5, 2023 Share Posted June 5, 2023 It could potentially be the fault. Ac compressor not seized etc? Also I believe lower pulleys are known to come loose on c5s. I had this on my 2.5 diesel Quote Link to comment Share on other sites More sharing options...
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