garys vette

Replaced pulley but the tensioner itself is jittery and worst yet squeaky.

Anyone have a recommendation for a good quality one. There is so much crud out there these days.

Merry Christmas

Shag

Just replaced mine with a Dayco.

Hot Rod Roy

A jittery tensioner?? Could you have a bad serpentine belt? Is your tensioner operating within the normal range markings on the tensioner?

By looking at my tensioner, you can't tell whether the engine is running or not.

92-C4

mine has the jitters too. and a squeak once at temp. About to change the opti, so it's just one more thing getting added to the list as I dig in.

Corvette410

Dayco is a good quality stock replacement , change your belt also it is recommended to change serpentine belts once a year or 20'000 miles whatever comes first .