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Power Strokes
94-97 Aftermarket
Obs lift pump question
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[QUOTE="OBS-Addiction97, post: 1559037, member: 13998"] I’m wondering if the obs stock lift pump is capable of pulling through pre pump filters? I did the tight wad mod on my work truck to delete the fuel bowl. Two napa bases with a bf1212 and bf7633 right after selector valve. Symptoms are sluggish until the truck warns up. I am running a wmo mixture for the time being- so this may be a cause. I read the obs lift pump is a 2 stage pump. I basically looped the line from the low pressure discharge to the high pressure intake on the pump. [/QUOTE]
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