Ford&Chevy97 Report post Posted January 4 Recently just replace harmonic ballacer on my 2011 SE 3.5l FWD, with 117k miles. Ever since, ive noticed a click sound and a pulse of vibration along with it during idle. Sounds like its coming from the pully system. Any ideas? I think it might be the tensioner. Share this post Link to post Share on other sites
enigma-2 Report post Posted January 18 Did you go with Motorcraft or aftermarket? Did you check the condition of the belts during the change? 1 Share this post Link to post Share on other sites
evh Report post Posted January 18 My 2016 3.5L developed a click at idle with roughly 38,000 miles on it (yes, just out of warranty). It was the tensioner. I purchased a new Motorcraft tensioner for $125 and replaced it myself (not too tough). No more click. It now has 60,000 miles. 1 1 Share this post Link to post Share on other sites
Ford&Chevy97 Report post Posted January 28 Ordered a new Motocraft Tensioner, pretty sure the bearing or something is going out. 100k says its about time for a new one. Making sure I get the proper tension this time too 😅 Thanks. Share this post Link to post Share on other sites
