Squeaking Serpentine Belt
Thread Starter
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Laughing Gas
Joined: Sep 2007
Posts: 1,051
Likes: 4
From: Caro, MI
Well I checked all of the pulleys. None of them seemed to be sticky. The powersteering pump was the hardest to spin but I think the torque it took to spin it was normal. Any other ideas?
Rather Be Floatin
Joined: Oct 2005
Posts: 2,468
Likes: 0
From: Marble Falls, Tx.
And might want to get a rerouted top radiator hose while your at it.
Logistics Pro
Joined: Mar 2002
Posts: 3,881
Likes: 84
From: Wake Forest, NC
If it shredded when it came off, what caused it to shred? Was it really that worn out, or did something cause it to overheat and fail? It could be as simple as contamination. I've had luck with using some emory cloth to "sand" the back of a belt to clean it up some. I have a fairly new belt in my personal truck and spilled some antifreeze on it and now it squeeks occasionally. I sanded it some, since the antifreeze soaks into the rubber it didn't go away completely but got better. You have to be careful of course. I use around 80 to 120 grit cloth.
I have a nearly brand new gator back you could have. I am one of those unlucky ones that had it vibrate between the alt and p/s pump. But that side of my truck vibrates anyway....nother thread.
I have a nearly brand new gator back you could have. I am one of those unlucky ones that had it vibrate between the alt and p/s pump. But that side of my truck vibrates anyway....nother thread.
Thread Starter
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Laughing Gas
Joined: Sep 2007
Posts: 1,051
Likes: 4
From: Caro, MI
The belt broke because it was just wore out. Well I think i narrowed to down to the pulley is a little tight for the belt. Going to sand it down and see what that does.
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Fleet Owner
Joined: Jun 2004
Posts: 25,090
Likes: 1,112
From: Rio Rico, AZ.
Try a couple of dabs of black RTV silicone on the belt, start the engine and let it idle, spreading the RTV as a thin coating for the belt.
It's amazing how quiet it gets.
Lead Driver
Joined: Jan 2007
Posts: 6,708
Likes: 5
From: Kiowa CO
Sorry Justin if you said this before and I didn't see it but what brand and part number of belt do you have? I just picked up one ( Goodyear #4081223) and was curious if that's the same one. Single alternator 7.3L is what the "book" says.
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Laughing Gas
Joined: Sep 2007
Posts: 1,051
Likes: 4
From: Caro, MI
It was a Polycog or something like that. I don't have the part number right off hand. I know it was the one for a single alt. The only problem I have is that it is just a little too wide. I am going to try the RTV first and if that doesn't help, going to sand the backside edge of the belt to narrow it up a little bit.
Posting Guru
Joined: Oct 2005
Posts: 1,551
Likes: 1
From: Hickory, North Carolina
That is funny how this works out. every time I have a question about my truck someone else already beats me to it in a thread. my belt kinda squeaks but it is very hard to hear and it only does it in the rain.
Lead Driver
Joined: Jan 2007
Posts: 6,708
Likes: 5
From: Kiowa CO
It was a Polycog or something like that. I don't have the part number right off hand. I know it was the one for a single alt. The only problem I have is that it is just a little too wide. I am going to try the RTV first and if that doesn't help, going to sand the backside edge of the belt to narrow it up a little bit.
Gone Fishin for Mark
Joined: Nov 2004
Posts: 1,354
Likes: 2
From: West of Houston
I also had the elusive squeak. I replaced the idlers. Turns out it was the tensioner itself. Not a pulley but the action of the spring as it was 'tensioning'. I found while still jacking with the problem. I happened to finally see the belt misaligned and noticed about a 3/4 inch gap where the tensioner was coming apart.
You should pull the tensioner assembly and inspect it.
You should pull the tensioner assembly and inspect it.
Elder User
Joined: Jul 2005
Posts: 659
Likes: 2
From: Berthoud, CO
This may sound stupid, but is it a napa belt? I bought one from Napa and it squeeked like crazy. Took it back, got another, still squeeked. Went and bought another no name brand one from another place, and it never made a noise.
Just FYI
Just FYI