well havent been around for a lil bit had pc problems not sure if there fixed yet but ima post anyway. on the weekend of april 19 and 20 i decided to tear it open and get dirty after reading the posts a hundred times i felt confident.....hahaha and i just went with it i opened up my motor to do my plenum kit and some other new stuff not a bad job i must say it sounds alot more challenging than it was i did have a few snags and problems but i overcame them of course i had the dreaded broken bolt in my head right by the waterpump took me like 4hrs to get that f....n thing out but i did and now i have a new plenum plate and gasket and all the other gaskets and valve cover gaskets and 180 stat new hoses and had a learning experience doing it it seems to run better that plenum was blown it had blowouts between each bolt most of my bolts werent even tight when i took my stuff apart now eveything is torqed i even bought a torque wrench and some other much needed tools but my mpg is better i think of course its only been a week and a half .....now on to my pain in the *** problem i have a real bad sqeek or squeel on one of the pulleys and cant figure out which one it is any ideas ive replaced **** and it still squeels ......j

 

whoa, take a breath!

It's probably the belt tensioner or the idler pulley squeaking. Those are the two most common.

Here's the easy way to find it. Turn the truck over and while the engine is running, give each pulley (one at a time and slowly) a good shot of WD40 right where the pivot point it. When the squeak stops, you found it. I prefer WD40 for this as it's thin and will penetrate pretty quick and then burn off so you don't get that false sense of "hey, now it's fixed because a squirted some goop on it."

 

get a 3-4 ft piece of hose. (Or a stethoscope)
hold one end to your ear and place the other end close to or on each pulley, alternator etc.
The loudest one is the bad one.
Be careful around the belt and fan while the engine is running!

 

well the wd-40 seems to make it it worse and im still not sure which one it is i replaced tensioer pulley still squeels the hose thing sounds good but what if its really loud as is ....put it this way its embarassing and yes i had to to take a breath....my pc guy called just as i was typing that post sorry for that i had to hurry.....

 

Dude! I have the same problem! But mine only occurs under acceleration. At idle the motor runs perrrrfect. So I can't figure it out! I just took out the idler pulley again and put some lucas oil all over it, and it still effen squeels. My dad noticed my tensioner moving just ever so slightly, and I told him that it should be ok, but would it be possible that little movement is making this awful gut wrenching squeel??!?!

I hate squeels!!! ah.

 

exactly my point i hate odd sounds period it should just run smooth with the hp purrrrrr.......

 

It's funny, I just did my plenum as well. Replaced the WP, Timing Chain, about the same deal you did. Weird how we both get a freggin squeel. ARgh. It is embarassing. People not in the know think my truck is going to blow up or something. ARghhhhhh.

 

check to see if the water pump puly Is wobbling? Maybe the bearings are jacked?

 

When I did my plenum, I had a squeel right after too. Mine traced to the GatorBack serpentine belt I bought. I replaced it with an OEM belt, and the noise never returned.

 

I did keep my OEM belt, but I had a squeel prior but it was nothing close to this. And the prior squeel was even more peculiar, it would only whine in the cold or in the rain, but silent in the sun.