if your taking a pole
i would vote the fan
it only turns on when its hot
the water pump turns all the time
you only chirp when its hot

fan 1 pump 0

good luck
big john

 

ok i put a video on youtube, if someone can watch it and tell me what you think it might be. i just stuffed my phone under the front end cuz thats where you can hear it the most!
any and all suggestions are appriciated. here is the link....
http://www.youtube.com/watch?v=EPlpuofGCBo

 

Sounds like a fan clutch but not sure. I would wait and see what others say after seeing the video.

 

yea thats what i thought. what made me think it more, is i ran the truck WITHOUT the fan, and it didnt do it.

so i put a new fan clutch in it, and the squeak is still there. its not as bad but definitely still there.

is there anyway it couls be the water pump pulley?

 

Well then I guess it sounds like a waterpump/pulley failure. Is your engine running hotter than normal? If so I would replace the water pump. Did you try greasing the pulley on the waterpump with WD40 or something like that? If you did and it is still making that noise, make sure you pinpoint the sound to the waterpump then I would replace the waterpump. Shouldn't be too expensive to replace, just go to your local parts store and ask for a good quality one.

 

yea man....i greesed everything. this thing got me....im hearin that noise in my sleep.

wont do it with the fan off the truck, thats why i thought it was the clutch....but must only be cuz there isnt as much load on it.
do you think i should get a gatorback belt?
hey man....thanks for tryin to help!

 

well, i went and got a gatorback belt which didnt do anything. on my way home i thought i lost my tranny, cuz it wouldnt shift, and when i pulled in the driveway i looked under the hood to see maybe the belt came off? but everything was fine,
went to back up and it wouldnt go.
lookin underneath, after i jacked it up...cuz im one of the ones that lowers blazers.. the front ujoint looks like it sprayed grease all over everything.

awesome. i have no idea why i keep buyin blazers.
guess its kinda like an unconditional love thing huh?

 

youre not gonna believe this. my tranny went, and i just got it back from the shop, and that squeak is still there.

 

ok i need serious help. so far i replaced

belt twice, 3rd time got a gator back
tensioner assembly
fan clutch
had the tranny rebuilt
and today i did the water pump
and that damn noise is still there.

its definitly something turning and it does it worse in reverse.
also does it pretty bad in 2nd around 1500 rpm.
please help me

 

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