2003 Mazda 6 Engine Belt Tensioner Pulley Rattle: RESOLVED Click to view on Bing6:58I replaced the belt/serpentine tensioner pulley, idler pulley, serpentine belt, and spark plugs on a 2003 Mazda 6 2 car. This engine had 115k miles. I don't know if these parts have been replaced before. By the Author: Five FootViews: 39K Belt and Belt tensioner change No mo noise! 88 - YouTube Click to view on Bing6:34https://amzn/2Z96TSp belt tensioner used Belt used https://amzn/2H6pqbN Hopefully the Made in mexico belt is EPDM like the old USA napa Gates belt. Not NEOPRENE (which cracks fast in the heat)Author: Ghetto WagonViews: 45K 5.4 Liter belt diagram - Online Auto Repair Engine belt dressing may increase the slipping but silence the noise because it is considered a lubricant. Use the above 5.4 Liter belt diagram to replace the serpentine belt Chevy Truck 1996-98 4, 5 and 5 - Serpentine belt Here is the serpentine belt diagram for a 1996-1998 Chevy truck with the 4.3, 5.0 and 5.7 liter engine. Removing the belt is very simple. Using breaker bar and a socket that fits the center bolt of the tensioner pulley, rotate the tensioner to create slack on the belt and slip it off the tensioner pulley.