Rotational squeak after serp belt replacement

So the other morning, I remote started my truck and it had a noticeable squeak coming from the engine. I chalked it up to a bad belt so I got a replacement.

Before replacing it, I shot it with some WD40 while it was running/squeaking but it didn’t change anything. Since I already had the belt, I figured I would change it anyways. Well the major squeak went away but now there is a slight tick/squeak that I can’t figure out what it is.

The noise is pretty faint but definitely there. I checked all the pulleys and they all rolled smooth except for the idler pulley that might have a little rough spot in it. I took a video tonight to see if anyone has had the same noise. To me, it sounds like it is coming from the driver side AC compressor area. What is the best way to isolate this type of noise? I shot each pulley with WD40 so maybe I caused it to squeak? It seems to clear up once the engine is warm.

https://youtu.be/h29sadN2bw0

It’s probably one of those noises that will either fix itself or I’ll stop noticing it but I’d like to get it fixed.

 

My Sequoia has a squeak and I quit giving a shit LOL. It’s probably the idler pulley or tensioner. But it could be any of the other pulleys, and I’m not just gonna start throwing money at it. I’m not stoked on the noise but it hasn’t affected the functionality of the truck.

 

I had a noise similar. Replaced the bearing in the pulley on the tensioner. You can get the bearing through a industrial supplier and they press out and in easily

You will have to get the bearing part number off the old
One. I don’t remember it off hand

 

Maybe I’ll throw a new idler and tensioner pulley on it and see what happens. It’s so faint and I’m sure I’m the only one that notices but it bugs me!

 

They’re easy enough. I can’t stand the slightest noise like that. Mostly because I know it’ll just get worse

 

I had a sound like that on my 2005 Tundra. A shot of belt ease would quiet it significantly, but it would come back full strength when the belt ease dried. Replaced that pulley and sound was gone. When I took the pulley off I noticed some corrosion on the area the belt connected to and I think that was the source of the noise.

 

I’ll get them ordered tomorrow. The idler pulley is big money!

 

After pulling my old one, I had to clean off rubber residue from each pulley/belt contact surface using a razor blade. It was bumps of rubber build up from the old belts slipping and leaving behind knobbies. Not sure if this is the problem here, but worth a mention.

Its the little things.

 

I think the idler pulley I bought was around $25 from Rock Auto.

 

yeah, the local parts house wants $75!

 

As luck has it, the squeak disappeared today..

I am going to hold off on replacing anything as I really think I got WD40 in something I shouldn't have or maybe I will just stop noticing it!

 

That’s how my Sequoia. Sometimes it’s a little squeaky and sometimes it’s whisper quiet. If it was consistent I would dive deeper. Sometimes it seems to be relative to the humidity in the air. A wet morning, it will make the noise.

 

I think temperature for me is what is causing it. I never noticed it when I first got it but it definitely was a lot louder in the cold. Since I swapped the belt the big noise went away but now this squeak seems to only be present when it's really cold and first start in the morning.

The weird part it is, it is a squeak every other second it seems like. If I watch the pulleys, it should be squeaking every half second or so but it's like it goes every other one. Oh well, fingers crossed it doesn't poke it's ugly head back up lol. Oh the joys of driving old rigs!

 

I used the Gates kit (I think from RockAuto) that came with a new belt, idler pulley, and tensioner, and it made my intermittent squeak disappear. It was about $120 I think. I did it at the same time as the timing belt

 

Well that's a hell of deal! Had I known that, I probably would have just done that. I got my belt for free but still, that's the way to do it. I am assuming this one here?

https://www.rockauto.com/en/moreinfo.php?pk=9118020&cc=1357938&jsn=950

 

I had a really bad belt squeak and the belt dressing didn't work. I didn't want to start replacing parts so I put on a Gatorback belt and the squeak has not come back for 9 months including the below 0 temperatures we have been having lately. The squeak had been a problem for the previous owner and the dealer was charging over 200 dollars to replace it.

 

Mine was actually this one, but I'm not sure what the difference is: https://www.rockauto.com/en/moreinfo.php?pk=9118632&cc=1431003&jsn=10

And it was a good deal! Made in Canada, too.

Edit: I see the difference...your link is for the 2000-2002 trucks. Mine is a 2005 and the tensioners have a slightly different part number.

 

Looks like they are the same kit as the part numbers all match when I look it up. Maybe on supersedes the other?

 

Not sure...I just compared my link to the first one you sent and the tensioners have a different part number and year range.

My kit:

$22 GATES K060908 Micro-V Serpentine Drive Belt

GATES K060908
GATES 38488
GATES 36026

Your link (which should be correct for your truck):
GATES K060908
GATES 38173
GATES 36026

 

I too bought the Gates kit ACK060908 from rockauto.com and I'm just waiting for a clear weekend to install it when I do the

$183 Aisin TKT-021 Engine Timing Belt Kit with Water Pump - Compatible with Select Lexus GS400, GS430, GX470, LS400, LS430, LX470, SC400, SC430 Toyota 4Runner, Land Cruiser, Sequoia, Tundra

Aisin TKT-021 timing belt kit. On what I believe is good advice, I will simply be replacing what I have removed when doing the timing belt kit so why not just replace them too along with the thermostat and the two large radiator hoses. After all, they are all sitting on 127,000+ miles of wear as far as I can ascertain. Since labor is the larger part of the repair billing, why not just replace them since I took them off already?

 

That's the way to look at it. If it's coming off already, it's getting replaced.