Ford ranger belt

[soundman115]

I have a 2003 ford ranger V6 3.0 i have a belt noise and i dont know what pully it is coming from. i just replace my idler pully and trension pully and put a new belt on. But i am still getting a squealing niose sounds like the idler pully but it is not cuz i made sure by going to get a different one. i would like to know any ideas of what other pullys it could be. everything is stock on the ranger.

thank you

 

[BrooklynBay]

Welcome to this forum! Remove the belt, and turn each pulley until you hear the noise.

 

[soundman115]

i did that and nothing the only noise i could hear was on the idler pully sounded like a little grinding noise but i just replaced it and i still have a noise.

 

[BrooklynBay]

It's possible for the noise to come from a bearing in the alternator, P/S pump or the water pump, but it won't make the noise unless there is stress against the bearing from the belt applying pressure as it turns.

 

[soundman115]

ok so do you think if i sprayed wd40 on a pully until the noise stoped while the truck is running i could pine point which pully it is?


thanks

 

[BrooklynBay]

Try it.

 

[lifted93xplorer]

One way to find out where the noise is coming from is to use a stethoscope and put it as close to the pulley as safely possible. If you don't have a stethoscope like most people, then use a long extension or screwdriver. If you have A/C, it could be the compressor.

 

[soundman115]

ok thanks alot ill try it and see what i can find. thanks again

 

[McCormack]

3.0's are known for their tensioner pulleys going out of alignment which causes the infamous belt squeal. Put a straight edge on your tensioner pulley and see if it lines up with your crank pulley - if it doesn't then either shim the old tensioner into alignment or else buy a new tensioner assembly.

Another source of squealing on 3.0's is the cam synchronizer assembly located at the rear of the engine.

 

[soundman115]

ok well i sprayed some wd40 and it stopped for a while then came right back i will try the alignment thing and see how it goes. i never changed it out i just changed the pully in it. thanks again

 

[McCormack]

The 3.0 tensioner is a poor design and even new ones can pull out of alignment, so if you buy a new tensioner make sure to check it for alignment (with the belt on) after installing it.