idler pulley & belt tensioners - Ford Powerstroke Diesel Forum
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post #1 of 3 Old 09-25-2010, 04:59 PM Thread Starter
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idler pulley & belt tensioners

I was thinking of replacing the serpantine belt and the idler pulley on my wifes truck. I figure good preventative maintenance. I pay attention to mine, if something broke or the fan belt was off i would know it. She would keep driving til it siezed.
Are the belt tensioners also something i should replace? seeing as it has 2 pulleys, plus the internal tension spring? It seems to be fine? But looking for input. I hear a lot on idler pulleys failing, how about the belt tensioners?

2008 6.4 f250 lariat 4wd
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post #2 of 3 Old 09-26-2010, 07:15 AM Rookie
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Ive got a 97 ps with 215,000 and a 99 with 270,000 on it and I replaced the pullys just because they dont last forever and when the go out ur stuck. they were only like $20 ea. Thats a lot cheaper than a tow bill or worse.
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post #3 of 3 Old 09-26-2010, 11:19 AM Fanatic
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Well my belt tensioner assembly completely fell of my motor about two weeks ago. So Id say go ahead and replace it for preventative maintenance. It was only like 70 bucks. Cant hurt

Early 99 F250 Super Cab 4x4, 7.3L w/155k, Leveling Kit, 20" Fuel Hostages, 35" Trail Grapplers, TW 6 Pos Chip, Triple gauge pod, K&N Intake w/6637 Filter, 4" Turbo Back to 5" RBP Black Tip, 09 Seats, Console, and tailights, 05 Turn Signal Mirrors, Headlights w/6000k HIDs, Badges and Grille.
1979 Ford Bronco, 400m w/C6, Twin Stick NP205, 35" KM2's, Lockers.

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