Quote:
Originally Posted by muleears
Its getting dark now, that will have to wait till lunch tomorrow. So if one of the lines on the fuel pump is full of bubbles and the other isn't, doesn't that mean the air is coming from inside the fuel pump? Where is the supply line for the fuel pump?
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I'd strongly suspect that the pump is the source of the air leak then...either the o-ring on the suction side is bad or the pump body itself has a crack on the suction side which is drawing air into it...it would not necessarily leak fuel, just draw air when the pump is trying to draw fuel. I think if it were mine I would replace all 3 suspect parts, the SOV, the pump and the K40...none are that expensive or hard to replace and each has its weaknesses that could leave you stranded one day so replacing them as preventative is not crazy.