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I just put in Mark fugazzottos efuel, real easy. But im having air intrusion somewhere and my psi drops. The pump sounds as its sucking air so im assuming it has to be pre pump. Are the stupid quick connects on the valve selector or top of tanks prone to not sealing? I dont know what my psi was before on the stock pump. If i let the truck idle my psi runs about 60. Coming home from work today i could notice the lack of power when i parked it, psi was about 20-25. Since both tanks do the same thing im wondering if its the fuel selector.
 

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check the flex lines at the drivers fender....known to leak on the OBS trucks. Replaced them both on my 97 with 3/8 fuel line double clamped.
 

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Wouldnt that be pressurized being after the pump?
Not sure since you have an aftermarket electric pump...the lines I mentioned are to/from the tank(s) so if your pump is in the stock location one line has to be suction and the other pressure.
 
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