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Ford Truck Club Forum > FORD F-250 | F-350 SERIES | SUPER DUTY > 1992-1997 Ford F250 | F350

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Old November 4th, 2014, 06:06 PM
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imastank imastank is offline

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Default bypassing a seized aip pump

my smog pump seized on my 1997 f250 5.8. I thought i could just bypass it with a 94.5 inch belt. It seems to go on tight enough but when the engine is running it will eventually throw the belt (even at idle). Has anyone got any suggestions? Going down to a slightly smaller belt doesn't seem to be an option as its enough of a struggle slipping the 94.5" on.
Old November 4th, 2014, 09:24 PM
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glc glc is offline

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Why don't you go to the junkyard and find a smog pump that's not seized?

If you have to, a reman is $81.79 at rockauto.com.

2003 F-150 XL RCSB 2wd 4.2 5 speed 3.55 LS
Old November 4th, 2014, 10:19 PM
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Default bypassing seized air pump

Bypassing it seems to be the easier and cheaper route. Rock Auto lists two pumps for this vehicle (both remans from Cardone Autoparts) with two different part numbers (although they look the same). They cross-reference ID numbers which I think are supposed to correspond to the number on the pump I need to replace but I can't find any numbers on mine. Didn't want to go through the cost and aggravation of returning the pump if I guessed wrong.
Old November 11th, 2014, 09:26 PM
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Smile Bypassing a seized smog pump

In case anyone else needs to bypass their smog pump on a 5.8L I was able to do it by replacing the stock belt with a 94.2 inch one. I used a NAPA belt (part number 25060942). If you don't have a NAPA store nearby you could also try a Goodyear belt #4060942, a Gates #K060942, a Dayco #5060942, or part #942K6 from vbelts4less.com.

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cdv , E250notF , Gallothrix , glc , Hemifish , imastank , JSoko , mr wu , Russo2

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