What the title says. The serpentine belt has about 5k on it and it's a little squeaky when the engine is cold. After a little bit it goes away. The tensioner is also new.
Mine was dead silent at all times so I'm not so sure about your instructor's advice.Haven't looked at that. My instructor at school thinks it may be the timing belt is a little tight. He said it may just need to wear in a little bit longer and told me not to worry too much about it.
He was a Ford dealership tech for 32 years, so I figure his advice is probably worth taking.Mine was dead silent at all times so I'm not so sure about your instructor's advice.
I replaced the timing belt and tensioner nearly 6K ago. But I suppose it's entirely possible that either the timing tensioner or the serpentine tensioner could have been bad out of the box. I'll try removing the drive belt and see if it makes a difference.If this noise is consistent and repeatable when it's cold, try removing the serpentine belt and see if the noise goes away. If it remains, then it's a problem with the timing belt, most likely a tensioner pulley with failing ball bearings. If it's approaching 100K (or 8-10 years) since you've last changed the timing belt, now would be a good time.
On Escorts, a properly working tensioner pulley provides just the right amount of tension to the belt when it's released and locked down. It can't become "too tight." But when the ball bearings start to disintegrate, it can allow the belt to become too loose and the teeth will eventually strip at the crankshaft pulley, usually on a cold morning.
This is true.I've run into techs who know less about my car than I do.
It's impossible to know everything.
The pulleys are all tight and only the power steering pulley has some in and out movement due to the shaft. The idler is tight and smooth like new. I took some brake cleaner and a wire brush to the grooved pulleys and cleaned them out good, so we'll see what happens.With the belt off, turn each of the pulleys by hand (except the crank pulley, obviously) and make sure they spin smoothly and have no lateral play in them from worn bearings. This is especially true for the A/C pulley, which can get very hot if the A/C clutch plate starts to slip from age. The idler pulley should be just as smooth and tight as your new tensioner pulley.
Spray down each of the pulley surfaces with brake cleaner on the off chance that you got some oil or grease on them recently. As a last resort you can try a different brand of belt if you're not using Motorcraft.