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Q: How do you change the fuel filters 1990 Ford f250 on 1990 Ford F-250

just aquired 1990 f250 with 7.3 was told they have 2 filters on front of engine filter has screw knob on bottom. Is this the only thing that holds this , and where is the 2ed filter located?
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I'm fairly certain that their talking about two types of filters. They both screw on like an oil filter. Lube the gasket just like you would an oil filter. Also fill with fuel before installing. Lock at the Haynes book at the parts store when you pickup you filter.
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