I removed the front tank, verified no leaks on capped lines, and built fuel pressure on the stock rear pump. I then replaced the rear pump with a Quantum 340lph unit. The pump cycles, but I cannot build pressure. I thought at first it was not picking up because fuel level was so low, but I've put about 7 gallons in now, gauge reads over 1/3 level and still can't build pressure. I tried jumping out the fuel pump relay just to let the pump run with no change. Almost like the pump is airlocked and won't prime.
Am I missing something here?
Am I missing something here?
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