How to Replace Serpentine Belt Tensioner 2006-2011 Cadillac DTS

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The tensioner is a springed device that keeps the serpentine belt in your vehicle at the correct tension to keep it on the pulleys, without being so tight that it breaks. Eventually the tensioner may become worn, loose, or stuck, resulting in belts that squeak, slip, or fall off. This video shows you how to install a new TRQ tensioner pulley in your 2006-2011 Cadillac DTS.

This repair was done on a 2010 Cadillac DTS Platinum 4.6L and the process should be similar on the following vehicles:
2006 Cadillac DTS
2007 Cadillac DTS
2008 Cadillac DTS
2009 Cadillac DTS
2010 Cadillac DTS
2011 Cadillac DTS

Tools you will need:
• Pry Bar https://trq.video/orN-1AXAA00020
• 10mm Socket https://trq.video/oX3-1AXAA00017
• 15mm Socket https://trq.video/o77-1AXAA00015
• 18mm Socket
• 21mm Socket
• Serpentine Belt Tensioner Tool https://trq.video/oaF-1AXAA00019
• Trim Tool Set https://trq.video/owv-1AXXX00006
• Ratchet https://trq.video/oaem-1AXAA00016
• Socket Extensions https://trq.video/o77-1AXAA00015
• Torque Wrench https://trq.video/oJM-1AXAA00044
• Floor Jack https://trq.video/ouw-1AXAA00068
• Magnet - Extendable

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Cadillac DTS 2006-2011 1st Generation:    • Cadillac DTS 2006-2011 1st Generation  

⚠ DISCLAIMER:
While TRQ strives to make the information provided in this video as accurate as possible, it makes no claims, promises, or guarantees about the accuracy, completeness or applicability of the content. No information contained in this video shall create any expressed or implied warranty or guarantee of any particular result. All do-it-yourself projects entail some risk. It is the sole responsibility of the viewer to assume this risk. TRQ is not responsible or liable for any loss damage (including, but not limited to, actual, consequential, or punitive), liability, claim, or any other injury or cause related to or resulting from any information posted in this video.