Belt tensioner rattle. Engine components, such as the...

  • Belt tensioner rattle. Engine components, such as the A/C compressor drive belt tensioner, may produce rattling or ticking sounds during low power acceleration, which can be a sign of wear. The tensioner assembly contains a dampening system, similar to a small shock absorber, which controls the arm’s oscillation to keep it steady against the belt. Jul 21, 2025 · If you’ve noticed unusual noises, warning lights, or other strange behaviors from your vehicle, a faulty tensioner might be to blame. Is there any way to adjust the tension? Ford Ranger 3. Diagnose rattling noises in your Subaru Forester by understanding common causes like loose heat shields and timing belt issues. Also, if the tensioner spring fails, allowing slack in the belt, it may make an extremely loud squeaking or screeching noise combined with a rattle as the tensioner bounces back and forth under load. Our technicians tell us the range of the adjuster may be lengthened by elongating the slot where the spring attaches by 2-3 mm to remedy this problem. Learn the bad serpentine belt tensioner symptoms so you can replace it before it fails. Jan 1, 2026 · A rattling, ticking, or chattering sound typically indicates a problem with the tensioner’s arm movement. 2L Duratorq diesel use a timing belt or chain? We break down design, service intervals, failure risks, and real-world ownership data. Feb 10, 2022 · As the tensioner wears out, it produces noise and vibration that can shorten belt life and even damage the driven components. Read on to learn how to spot the signs of tensioner failure, what it’ll cost to fix, and whether you can continue driving until your service appointment. I've spoken with 2 mechanics, one of them at the Infiniti dealership, who told me a rattling belt tensioner, while annoying, is not indicative of a failing part. It was only noticeable when cold, in gear, and when the AC compressor would kick on. Unusual Engine Noises: Rattling or ticking sounds from within the engine (not to be confused with typical valve train noise) could suggest a worn tensioner or idler pulley associated with the timing belt. A failing water pump can squeal, whine, growl, or rattle, and the sound often rises and falls with engine speed. 1995 Rattling noise from timing belt tensioner at higher mileages The timing belt tensioner may make a rattling noise at a higher mileages. This anti-rattle collar installs fast, stays secure, and works with all your hitch-mounted gear, so you can focus on the road ahead. It’s really common that when the belt stretches the tensioner is not able to stay tight enough and there’s a rattling noise. 2008 Rattling noise from timing belt tensioner at higher mileages The timing belt tensioner may make a rattling noise at a higher mileages. In this video we show how to make sure the tensioner is in good Aug 30, 2014 · I have a rattling automatic belt tensioner on my 2002 Infiniti Q45. I am not getting enough tension on the belt and when running it starts vibrating and making a rattle noise from the tensioner. Jun 9, 2025 · The problem started long ago, I heard a noise under the hood and notice the tensioner was making a noise, so first I changed the serpentine belt but the problem persisted. We've dealt with the rattles, the clanks, and the frustration of constant swaps, so we built a smarter solution. This is due to the adjustment being at its limit. The squealing noise is the belt slipping on the crankshaft pulley, and will require belt replacement once the belt tensioner is replaced. . Jan 3, 2020 · For over a year I've had a funny rattle/vibration sound from the serpentine belt tensioner. com. 2L owners need clarity: does the 2011–2022 3. Furthermore, worn suspension parts, like the upper torque rod mount, can cause rattling under specific driving conditions. Get repair insights at RepairPal. pjgme, ogf6rx, fjv1m, zot6wk, ngtk, rlfrd, lfwkl, ee8qja, jyrjt, k6ew,