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21/06/2021 10:21 am
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I have a 2013 F150 3.5L ecoboost. 108K miles. After sitting awhile and cold, when it starts there is a loud buzzing coming from the engine. I think it is the timing belt tensioner. It has done this for the last 10-15K miles and is getting progressively worse. I hear this is a common problem with Ford trucks and thousands of dollars to fix. Can I just keep driving it until it breaks? Is there a cheap fix for this?
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21/06/2021 10:54 am
The Ford 3.5L uses a timing chain, not a belt. The water pump, ac, etc., uses a belt. Which are you asking about??
The belt tensioner is ACDelco #39221, $46 at Rock Auto. It's an easy fix. The timing chain kit runs around $350 and involves disassembling the entire front of the engine.