Tensioner for alternator replacement?

2008 SCION XB
144,000 MILES • AUTOMATIC
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MRS HAVOC
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I saw on YouTube it is a 19mm but the only 19mm bolt/nut just spins the belt - where can I find a diagram or a caveman drawing how to remove the serpentine belt?
Mar 22, 2026 at 12:20 PM
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STRAILER
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I got you covered,

Using SST and 19 mm socket wrench, loosen the V-ribbed belt tensioner arm clockwise. When retracting the tensioner, turn it clockwise slowly for 3 seconds or more. Check out the images (below). Let us know if you need anything else. Ken

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Mar 23, 2026 at 2:22 PM
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MRS HAVOC
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Thank you very much for your concise and accurate response! Because of your response we were able to replace the alternator without removing the passenger tire or the engine splash shield! Thank you Ken
Mar 30, 2026 at 2:21 AM
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STRAILER
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You are welcome, please use 2CarPros anytime we are here to help. Can you please leave us a rating?

https://g.page/r/CZdEnyCkGgm6EB0/review

and

https://www.sitejabber.com/reviews/2carpros.com

Thank you! Ken
Mar 30, 2026 at 7:37 AM