Shock Hawk

My serpentine squeaks. I think it's the tensioner bearing, but it might be the belt. What should I use on the belt? What should I use in the bearing? How do I apply them?

Shock Hawk

ttt...

Grifter

iTrader: (12)

We use GM Super Lube at the dealer. Part #12346241.

But you can just spray some WD on the belt and see if the noise goes away. If the noise is still there you use a long screwdriver to use as a stethescope and listen to each pulley to determine which one is making the noise.

Shock Hawk

It's coming from the tensioner pulley. I'm not sure if the sound is just bouncing off it, but I've walked around the engine and listened. It's coming directly from the tensioner pulley. Can I relube it or do I have to get a replacement?

Grifter

iTrader: (12)

Did you check it with a screwdriver like I had mentioned? I don't doubt it is your tensioner but noises can really fly around the engine bay.

I don't believe the pulley is sold seperatley, you will probably need to buy the whole tensioner.

bpittman

iTrader: (1)

Some useful links......

Grease:

Link
Replace:

Link

White_Ls1

BTW if you do replace the belt or pulley, get a Gator back belt, or you will be squeaking down the road

mOtOrHeAd MiKe

iTrader: (8)

I'd really recommend changing the tensioner. I destroyed a brand new belt chasing a squeal with belt lube, oils and frustration. The lubes made a mess of my engine bay and accessories. Save the belt get a tensioner.

LS1crazy01

iTrader: (14)

Yah you got that right! I put the underdrive pulley on and used Napa belts cuz they were the real close and a week after they started screaming! And I still have them on cuz I have beent to cheap to buy a new set.

Shock Hawk

I changed the tensioner pulley. It's better, but not fixed. I bought a replacement idler pulley. If all else fails, the engine has 82k on it and some new ones won't harm anything. I just need to finish building my ramps so I can get under the car and change the pulley. Hopefully, that will be it.