think I figured out what my engine squeak was..

[87chevy.com]

My truck has developed a squeak about 2 weeks ago in the engine main drive belt. I couldnt narrow it down with a stethescope. I squirted soapy water on the belt and the noise went away... so I removed the belt, cleaned it with soapy water and wire brush and scuffed the smooth side up with a sanding disc (by hand) and installed it. No difference... as soon as it started it sounded the same (like a chicken chirping).
I removed the belt again and spun everything (exept the water pump) and I heard the alt making a slight noise... so I sprayed some BG lube in there... and no difference. I was going to buy a altenator but hadnt yet.
So today after work I had a few extra bottles of XMax so I was like, meh, I'll add em to the gas tank and engine oil. I drop the oil cap and it got stuck in the frame rail and header.. dam. Well I retrieve it and see a few drops of oil. Not sure where it came from but I was like... I'll bring it in the shop and wipe it down. Still have the squeak and I removed the belt once again.. this time I bump the fan blade and that sucker moved (wobbled).. I was like WTF? that sucker is about to fail aon me big time. Im sure that has to be the squeak becuase now I spun everthing else and nothing.. not a peep... anyway monday I will grab a water pump from the dealer and install it Monday or Tuesday.... That had better been the squeak! My truck has no other squeaks or rattles at this time I make a point to surpress any rattles or noises that annoy me.

clint

[ratty 46]

That was lucky ... that would not have been good if the fan let go of one of those blades!!

Ratty 46

[tucsonjwt]

I had a similar squeak last summer. I thought it was the water pump, until the crank pulley flew off the engine. One bolt got loose on the crank pulley and eventually all 3 bolts worked loose, so I would put a wrench on those bolts while you are in the neighborhood - have to do it by feel if the fan is still in place.

[87chevy.com]

I'll check it out, but I've never heard of a 5.3 crank bolt working loose..... I'll check it out anyway along with any possible play

[87chevy.com]

called the dealer and 254 list for a waterpump + they redesigned it which means you gotta buy a 50$ waterneck kit to fit the new waterpump. Got the part numbers and ordered through GM parts direct.com. 160 for the parts and a bend you over 40 bucks in shipping. All in all 190ish... hopefully it doesnt take forever to get becuase now I found that problem, I dont want to drive it.... although Ive been driving it with that squeek for 2 weeks and about 200 or so miles.

Just curious if anyones ordered from GMpartsdirect before?

clint