belt slippage.
Thread Starter
|
Elder User
Joined: Nov 2007
Posts: 768
Likes: 0
From: Michigan
belt slippage.
I haven't asked this yet but i've been wondering this for a long time now.
Ever since I've put the shift kit in my truck 've been getting belt slippage everytime it shifts. Sometimes WOT sometimes 3/4 throttle. I thought a new belt would help this but it hasn't. The tensioner and pullies are good and no problems there.
Any suggestions?
5.4L
Ever since I've put the shift kit in my truck 've been getting belt slippage everytime it shifts. Sometimes WOT sometimes 3/4 throttle. I thought a new belt would help this but it hasn't. The tensioner and pullies are good and no problems there.
Any suggestions?
5.4L
Senior User
Joined: Apr 2006
Posts: 126
Likes: 1
Did you replace with an OEM belt? If not, maybe the new one is a bit longer and is sloppy at the higher revs.
I'd check the entire drivetrain for the belt and see if there is any grease, oil, coolant, etc which could cause slippage.
How many miles on the tensioner? That would be my first quess since the old belt was slipping from what you said.
I'd check the entire drivetrain for the belt and see if there is any grease, oil, coolant, etc which could cause slippage.
How many miles on the tensioner? That would be my first quess since the old belt was slipping from what you said.
Thread Starter
|
Elder User
Joined: Nov 2007
Posts: 768
Likes: 0
From: Michigan
I replaced it with a goodyear belt. From what i've read elsewhere they make one that is called the gator-back or something where other people have used it and temporarily fixed the problem.
I don't suspect grease or oil but the next time i'm home i'll check.
125k miles on the tensioner, i took it to a place to get an alignment and asked them to check the pulleys and everything telling them the problem they said everything was fine. the tensioner seemed good since it took a lot of my gorilla strength to move the bloody thing. Perhaps I will look into this further. Any other suggestions out there? Is this doing any damage to my pulleys and accessories?
I don't suspect grease or oil but the next time i'm home i'll check.
125k miles on the tensioner, i took it to a place to get an alignment and asked them to check the pulleys and everything telling them the problem they said everything was fine. the tensioner seemed good since it took a lot of my gorilla strength to move the bloody thing. Perhaps I will look into this further. Any other suggestions out there? Is this doing any damage to my pulleys and accessories?
Senior User
Joined: Apr 2006
Posts: 126
Likes: 1
The tensioner should move pretty freely without alot of effort! As the belt stretches or shrinks while in use, the tensioner does what it sounds like, it keeps the proper tension on the belt.
If yours takes alot of effort to move it, it sounds like the belt itself would not be able to do its job. I can put a standard size wrench on mine and move it with minimum effort.
Most tensioners are bad when they "freeze" up not allowing easy movement. This is where I think your problem might be.
If yours takes alot of effort to move it, it sounds like the belt itself would not be able to do its job. I can put a standard size wrench on mine and move it with minimum effort.
Most tensioners are bad when they "freeze" up not allowing easy movement. This is where I think your problem might be.
Senior User
Joined: Jul 2007
Posts: 174
Likes: 2
From: G-VEGAS TN
My truck has 96k on it and my belt slips when it shifts at high rpms to so idk lol. I think it may be the power steering pump causing it cuz it has a high pressure cut out on it ???? I dont know for sure tho but that would explain it
Former Vendor
Joined: Mar 2009
Posts: 8,098
Likes: 10
From: Westford, MA
If it keeps up, it may be the tensioner. The tensioner on my Mustang's doing it on start up. It screeches then settles down.
Trending Topics
Thread Starter
|
Elder User
Joined: Nov 2007
Posts: 768
Likes: 0
From: Michigan
I forgot, I was referring to a time where I had to replace my alternator. to get the belt off i couldn't move the tensioner with my hand. the most recent time with a breaker bar i was easily capable of moving the tensioner.
it's been a couple of oil changes now and it's still slipping. The noise doesn't bother me since it only happens predominantly in wot. what worries me is if this is doing damage to the pulleys and components that the belt runs? The noise from the cab I kinda like at times to joke around just saying that's my blow-off for my turbo, jokingly saying that of course.
it's been a couple of oil changes now and it's still slipping. The noise doesn't bother me since it only happens predominantly in wot. what worries me is if this is doing damage to the pulleys and components that the belt runs? The noise from the cab I kinda like at times to joke around just saying that's my blow-off for my turbo, jokingly saying that of course.
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
10 Things Every Truck Owner NEEDS (2026 Edition)
Michael S. Palmer
Rezvani's Latest Post-Apocalytic Monster Is a Ford F-150 Raptor Underneath
Verdad Gallardo
Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer
Joe Kucinski
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo