Rattling noise from timing belt tensioner at higher mileages on Toyota Camry

Problem Description and Possible Solution
The timing belt tensioners may make a rattling noise at a higher mileages. This is due to the adjustment being at its limit. Our technicians tell us that range of the adjuster may be lengthened by elongating the slot where the spring attaches by 2-3 mm to remedy this problem.
Problem Data
RepairPal Verified
Average mileage: 187,990 (80,000–267,000)
Engines affected: 2.2L 4 Cylinder, 3.5L V6
8 model years affected: 1995, 1996, 1997, 1999, more2000, 2001, 2007, 2008
23 people reported this problem
Viewing 1 - 5 of 5 comments
rattling noise at low rpm. my mechanic initial thought is tension/ tensioner adjustment. I will find out Nov. 16.
I have a 2007 Toyota Camry XLE, and when ever I crank my car
Rattling noise before and after timing belt replacement. Going to try to adjust tension today to see if it helps.
Heard the squeaking/rattling after I had spark plugs replaced and coolant flush with new thermostat. The noise only occurs first starting the car when it's sat several hours and cooled off. Once warm it went away. Eventually my alternator went out. Took it to dealership for repair/replacement. Sound is gone. Obviously to me at least, was the alignment of the belt and/or pullies were off leading to failure.
Same as above, but seems to ease up as engine warms up.