I have a 2006 6.0 powerstroke which We believe the stock fuel pump went out in. I am curious as to what years of the 6.0 have the in-tank fuel pump to possibly see if that could be the real problem. From my understanding only certain years of the 6.0 have this?
BC3004
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1) The pump can make noise but not pump.
2) The whole hfcm can fail leaving the pump sucking air. It's actually the irreparable check valve in the hfcm that causes this.
3) The pickup foot inside the tank can deteriorate, this causes an "out of fuel at 1/4 tank" situation.
I've had the first 2 of the 3 happen. I pulled the return hose of the tank side of the hfcm & pushed air through it. This test put fuel in the hfcm, showing the pickup foot to be good and not clogged. So I moved on to the pump.
I do not remember exactly how I determined the pump was bad, but I figured it out pretty quick (I think I ran a hose to a bucket of fuel).
When my hfcm went bad, I did the air test, then swapped pumps. The hfcm was dry on the pump side both times, replaced the whole hfcm.
The pump can be replaced w/o removing the hfcm from the frame.... It's 3 hex head screws and the electrical connector.
Looking back, on a truck with 200k on it, I should have replaced the hfcm for $400, vs buying a fuel pump for $150 and eventually doing it all over again. I would have, in the long run saved the ini $150 for the pump. The hfcm comes complete with fuel pump and filter (but no upper filter, so that's part is pointless IMO).
Anyway, verify that you are getting fuel from the tank, then replace the pump or hfcm.
2) The whole hfcm can fail leaving the pump sucking air. It's actually the irreparable check valve in the hfcm that causes this.
3) The pickup foot inside the tank can deteriorate, this causes an "out of fuel at 1/4 tank" situation.
I've had the first 2 of the 3 happen. I pulled the return hose of the tank side of the hfcm & pushed air through it. This test put fuel in the hfcm, showing the pickup foot to be good and not clogged. So I moved on to the pump.
I do not remember exactly how I determined the pump was bad, but I figured it out pretty quick (I think I ran a hose to a bucket of fuel).
When my hfcm went bad, I did the air test, then swapped pumps. The hfcm was dry on the pump side both times, replaced the whole hfcm.
The pump can be replaced w/o removing the hfcm from the frame.... It's 3 hex head screws and the electrical connector.
Looking back, on a truck with 200k on it, I should have replaced the hfcm for $400, vs buying a fuel pump for $150 and eventually doing it all over again. I would have, in the long run saved the ini $150 for the pump. The hfcm comes complete with fuel pump and filter (but no upper filter, so that's part is pointless IMO).
Anyway, verify that you are getting fuel from the tank, then replace the pump or hfcm.
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