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truck is going real slow up hills

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  #1  
Old 01-02-2007, 02:39 PM
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truck is going real slow up hills
my truck is a f250 '91 , when goin up hills it goes slow and even on flat rds it sometimes seems its lacking power to go past 45mph . whatz up ?????
 
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Old 01-02-2007, 05:11 PM
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Perhaps a clogged fuel or air filter?
 
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Old 01-02-2007, 06:07 PM
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Not runnin on all cylinders?
 
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Old 01-03-2007, 02:55 PM
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Too big of trailer behind it?

Come on, help us out. What motor, mileage, modifications? Last tune up, scan read?
 
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Old 01-04-2007, 11:05 PM
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I would be looking at the Cath. converter to see if it is plugged from to rich of a mixture

Been there done that

The ceramic distroys its self and restrictes the exhaust flow
 
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Old 01-05-2007, 10:01 AM
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use a vacuum gauge to check out if exhaust is clogged or not.
 
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