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Old May 18, 2005 | 09:58 AM
  #1  
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Serpentine Belt

Only to be on the safe side, is there a recommended mileage to change the belt?
Not by the factory, but from everyone's experiences.

Also, the routing in that close-in area looks confusing, any routing diagrams around (2003 7.3)?

I know the tensioner is on the passenger side, the two 3 inch pullies close together?

Anything else to the install?

Thanks ya'll!
Steve...
 
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Old May 18, 2005 | 10:09 AM
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I did mine this weekend. Did they switch upper hose's by 2003? My 01 had the through the belt upper radiator hose that had to be removed to change the serp belt. If you do have that style I would recomend getting the behind the belt hose and change it over. Nothing really difficult, just use a 1/2 ratchet or breaker bar for the tensioner, it just go's into the tensioner pully like you were putting it in a socket, there should be sticker on the header panel with how its routed if you forget which pully went were.
 
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Old May 18, 2005 | 10:43 AM
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Nope, the upper hose still goes through the belt. Brilliant designers <sheesh>.
I would like to get the other belt but I don't know if it will fit, I have the dieselsite coolant filter mounted.

I found the routing sticker, it was the one right in front of my face! Odd though, it's mounted by the driver side battery.
 
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Old May 18, 2005 | 10:51 AM
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I got the different upper hose at napa, just tell them you want the one that goes behind the serpentine belt, I think it was only $10. Much easier to do it now that have to mess with it if the belt breaks and leaves you on the side of the road.
 
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Old May 18, 2005 | 11:05 AM
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Got a NAPA up the street with the hose in stock. Take a look at the pic in my gallery, I don't know if the new hose will fit past the coolant filter.
 
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Old May 18, 2005 | 11:24 AM
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to answer about the belt change interval i am sure that there are mileage intervals to change it but in my repair shop we replace it when it has cracks in the ribs. the recommended number is 6 cracks per inch but if i see any i resommend to replace it. as long as it isn't cracked or make noise i would leave it. though a spare belt is a good idea to keep in th truck so maybe replace it and put the old one in the cab as a spare.

tim
 
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Old May 18, 2005 | 11:30 AM
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Upper radiator, for dual alternator set up. Routes around: NAPA #9066
 
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Old May 18, 2005 | 11:49 AM
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Ok, let me do it another way....
Does anyone have the NAPA 9066 AND the Dieselsite coolant filter, both items installed?

Thanks TJ, I'll use that as a serpentine gauge...
 
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Old May 18, 2005 | 11:59 AM
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From: Shawnee, Ks
YUP, Check out my site. It is snug but fits fine, changing the filter is a little harder but nothing bad.
Linky
 
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Old May 19, 2005 | 12:43 AM
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I recently changed the belt on my '97. I don't have the hose routing problem but the belt started to fray at the edges at 57,000 miles. I've always heard that 60,000 miles was the magic number. In my case, I guess it's true. The old one is now a spare.
 
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