Belt Tensioner Trouble Plagues High-Mileage Lyriq

Having experienced similar serpentine belt issues on my 2019 Cadillac ELR electric, I can confirm this is a significant concern that needs prompt attention. The symptoms you describe match what I encountered, belt squeal and slipping, particularly during startup and acceleration. The belt tensioner failure often leads to inconsistent engine performance and can cause premature wear of other components in the belt drive system. When my tensioner failed, it had actually begun affecting multiple auxiliary systems, including the power steering and alternator. The repair required: Complete belt tensioner replacement, New serpentine belt installation, Inspection of all related pulleys, Testing of belt alignment and tension While this was a serious repair requiring specialized tools, it prevented potentially more expensive damage to other engine components. The job took about 3 hours at the shop. The belt tensioner itself is a common wear item on these powertrains, typically needing replacement between 150000-200000km. Recommend getting this checked soon, as a failing belt tensioner can lead to complete belt failure, which could leave you stranded.

Thanks for sharing your experience with the belt tensioner problem. Mine got fixed about 2 months ago and the engine performance is back to normal with no unusual engine noise. Your repair list matches exactly what they did on my Lyriq too. The idler pulley also showed signs of wear during inspection, so they suggested replacing that as part of proper automobile maintenance. Did you have any similar additional issues discovered during your repair? Also curious about the final cost you paid, would help me gauge if I got a fair deal at my shop.

Thanks for the follow-up about your Lyriq repair. Since my tensioner fix, the engine performance has remained optimal with no belt squeal or other engine noise issues. The mechanic did a thorough job addressing the bad belt tensioner, and it was money well spent at 455€ for the complete repair. Like your case, my idler pulley showed wear too. Getting that replaced at the same time made sense for long-term timing belt reliability. The comprehensive fix included: New belt tensioner, Fresh serpentine belt, Idler pulley replacement, Full system testing My total repair costs were similar to yours, and the investment in proper automobile maintenance has proven worthwhile. The belt drive system has worked flawlessly for over 30000km since the repair. Regular checks still show everything running smoothly with no signs of premature wear. The price you paid seems fair considering the scope of work. These repairs need specialized knowledge and quality parts to ensure lasting results.

Thanks everyone for the advice on this issue. I wanted to share how my repair experience turned out. After noticing the belt squeal getting worse, I took it to a local certified shop last week. The mechanic confirmed the failing belt tensioner and found the timing belt was showing early wear too. The total repair came to 480€ which included: New belt tensioner unit, Fresh serpentine belt, Idler pulley replacement, Labor costs The engine noise is completely gone now and the belt drive system runs perfectly smooth. The shop did a great job explaining everything and showing me the worn parts. They even gave me tips on what engine sounds to watch out for in the future. Was nervous about the repair after my previous bad experience, but this shop really knew what they were doing. The car runs like new and the investment was worth it to prevent more serious issues down the road. For anyone else facing similar belt drive problems, definitely get it checked early before it leads to bigger troubles.