serpentine belt - Ford Powerstroke Diesel Forum

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post #1 of 15 Old 06-16-2011, 07:29 PM Thread Starter
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serpentine belt

Just wondering how long serpentine belts last. Mine started to squeak again. Tomorrow I'm going to take the belt off and check the pulleys. Another question would to much belt dressing cause a squeak? Thanks for any input


1997 F250 7.3L XLT Auto 4x4 std. cab
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Hypertech maxenergy stage 1
dyi tymar intake
S.S downpipe to 5" stacks
glow shift gauges
pro comp xtreme alloy rims
Nitto Terra Grapplers 285/75/16
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post #2 of 15 Old 06-16-2011, 07:31 PM Thread Starter
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Also forgot to add it don't do it all the time. Tonight is the first night for like a month. It only does it when its chilly or rainy


1997 F250 7.3L XLT Auto 4x4 std. cab
190k
Hypertech maxenergy stage 1
dyi tymar intake
S.S downpipe to 5" stacks
glow shift gauges
pro comp xtreme alloy rims
Nitto Terra Grapplers 285/75/16
fpr mod
kcm s.s. hpx line
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post #3 of 15 Old 06-16-2011, 08:46 PM
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Is the top of the belt glazed? Thats normally what causes that when its cold. If thats the case then the tensioner causes that.
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post #4 of 15 Old 06-17-2011, 08:35 AM Thread Starter
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well the smooth pulley faces are a brownish color.i cleaned them up and noticed no loose pullys except the powersteering pulley had a little play. so i put the the belt and stuff back on and before i applied the belt cleaner the belt had no squeak. so I spray the underneath of the belt (vpart) and now the squeak is back. maybe its time for a new belt


1997 F250 7.3L XLT Auto 4x4 std. cab
190k
Hypertech maxenergy stage 1
dyi tymar intake
S.S downpipe to 5" stacks
glow shift gauges
pro comp xtreme alloy rims
Nitto Terra Grapplers 285/75/16
fpr mod
kcm s.s. hpx line
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post #5 of 15 Old 06-17-2011, 08:39 AM
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the tensioners go bad sometimes, even if it doesnt seem loose.

2003 F-250 6.0 ECLB- [B]
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Previous trucks: 1997 F-350 CCLB, 2000 F-350 CCLB, 2008 F-250 CCLB
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post #6 of 15 Old 06-17-2011, 08:46 AM Thread Starter
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well while i watched while i had the engine running. and i could see the part the screw goes thru shaking back and forth but the bolt and stuff was tight.


1997 F250 7.3L XLT Auto 4x4 std. cab
190k
Hypertech maxenergy stage 1
dyi tymar intake
S.S downpipe to 5" stacks
glow shift gauges
pro comp xtreme alloy rims
Nitto Terra Grapplers 285/75/16
fpr mod
kcm s.s. hpx line
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post #7 of 15 Old 06-17-2011, 09:02 AM
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so that means the pulley might be going bad? if the bolt is tight but the pulley is wobbling. i am a lawn mower mechanic and that means the pulley is bad in my business.

2003 F-250 6.0 ECLB- [B]
-EGR Delete-Oil cooler-6.4 Banjo Bolts-WW2-turbo feed and drain lines-upgraded alternator-upgraded FICM

Previous trucks: 1997 F-350 CCLB, 2000 F-350 CCLB, 2008 F-250 CCLB
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post #8 of 15 Old 06-17-2011, 09:16 AM
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Quote:
Originally Posted by 96F350KID View Post
Is the top of the belt glazed? Thats normally what causes that when its cold. If thats the case then the tensioner causes that.
I agree!

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post #9 of 15 Old 06-17-2011, 09:23 AM Thread Starter
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No the pulley Is not wobbling. Its the base of tensior. I'm just saying its the belt because it acts like the other belt I had when I got antifreeze on it. Sqeaks til you spray it then don't make a noise til it wears off.but the bottle also says don't over use and I'm always good for over doing it


1997 F250 7.3L XLT Auto 4x4 std. cab
190k
Hypertech maxenergy stage 1
dyi tymar intake
S.S downpipe to 5" stacks
glow shift gauges
pro comp xtreme alloy rims
Nitto Terra Grapplers 285/75/16
fpr mod
kcm s.s. hpx line
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post #10 of 15 Old 06-17-2011, 11:12 AM
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belt dressing its the devil. dont ever use it on a serpentine belt. its intended for v-belts and it dont even do a good job at that. that stuff builds up with dirt and such in the bottom of the grooves and causes the belt to not seat properly in them and slip. ive spent hours with a wire brush and brake cleaner trying to get that stuff off. you have to clean every groved pulley and i usually scuff the smooth pulleys with sandpaper. when everything is sparkling clean put a new good belt on and you should be good for a long time. (assuming the tensioner and pulleys are good but it sounds like a belt squeak to me)

1994.5 F-350 2 wheel drive 7.3 powerstroke, ZF5, crew cab, dually, rear air lift with dash gauge and controls, 5th wheel and gooseneck brackets in bed, alcoa's, and a ton of miles (over *474k* and going strong) *now with diy tymar intake, mbrp 3" downpipe to 3" duals, stancor relay, prosport boost and pyro gauges, single mass flywheel*
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