uwe_winkler1
Crown Serpentine Belt Handover Issue
Summary of the thread
A 2019 Toyota Crown hybrid is experiencing issues with the serpentine belt handover, suspected to be related to the belt bringer or tensioner pulley. The problem involves the automatic adjustment of belt tension, although no unusual noises or performance issues have been noted yet. A similar case suggested that a failing tensioner pulley could lead to more severe problems, prompting the decision to have it inspected and potentially replaced at a workshop.
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4 comment(s)
uwe_winkler1 (community.author)
Thanks! Yes, 'belt handover' is the automatic belt tension adjustment. Engine performance seems normal, and I haven't noticed any unusual noises. Could you elaborate on the symptoms you experienced with your tensioner pulley?
marthasilver47
Okay, got it. Mine started with a wobble in the pulley you could see when the engine was running. Eventually, the belt started squealing, especially on cold starts. Since you're not hearing noises yet, it might be an early stage failure. Honestly, with these modern cars and their fancy belt systems, you're probably best off taking it to a workshop. A bad tensioner can cause serious damage if the belt snaps.
uwe_winkler1 (community.author)
I appreciate the advice. Given the potential complications, I'll schedule an appointment with a workshop to have the tensioner pulley inspected and replaced. The estimated repair cost is 455€.
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TOYOTA
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CROWN
marthasilver47
Hey! I had a similar problem with my Crown. By 'belt handover,' do you mean when the system automatically adjusts the belt tension? If so, it could be the tensioner pulley. When mine went, the whole belt drive system acted up. How's the engine performance otherwise? Any weird noises from the belt area?