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1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

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Old 11-04-2005, 04:56 PM
getrdone getrdone is offline
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Question Serpentine Belt Coming off?

I have a 1990 f-150 V-8 5.0. Lately the serptine belt has been sliping out of alignment on the AC compressor pully. it doesnt totaly come off but about half way.

Is there a way to prevent that or tighten the tensioning spring?
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Old 11-04-2005, 05:02 PM
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You have a pulley out of whack somewhere. Did this just start after you replaced an accessory? It could be the tensioner going bad, too.
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Old 11-05-2005, 01:07 PM
getrdone getrdone is offline
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ya i just replaced the alternator. but when ever i pull back on the tensioner its really easy to pull on it. I usually have to use two hands and walk around to the side of the truck. Lately i can do it with one hand.
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Old 11-05-2005, 09:34 PM
92lightning 92lightning is offline
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Sounds like the tensioner is going bad.They are not to expensive and that should take care of the problem.
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Old 11-05-2005, 11:39 PM
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Check pulleys as well

A new tensioner is a good start but Check Your pulleys as well.
I had a issue like this on my F-150 (4.9 I-6).When I replaced the tensioner my belt was still coming off due to the water pump trying to freeze up.
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Old 11-06-2005, 06:17 PM
getrdone getrdone is offline
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how much would a tensioner run for? (im a teenager with very little money)
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Old 11-06-2005, 06:17 PM
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Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks

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