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post #1 of 4 Old Today, 10:56 AM Thread Starter
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6.4 need insight no start

Hi i need a little bit of direction on where to go next 2008 ford f350 full deletes sct tuned.
First off truck died while turning a corner and now wont start. Towed it home. I then cycled the key and could hear air in at the fuel bowl top of the engine. I took it apart and there was air bubbles. I cycled more to get more out and put the filter and cap back on. Brand new cap and filter installed 2 nights prior. Then i hooked up banjo bolt on high pressure and hose on shrader valve. Bled system air bubbles right away and so on for 50 liters or so then none. I cycled key and then no start. So i dropped the hfcm and took a look. Lots of rust and gunk in there. My magnet took a chunk out. I took apart every piece cleaned and put back together and re installed. I re bled the system. Low pressure shrader valve read 3 psi on gauge. All fuses checked and no start. Jw how i can diagnose the hpfp or injectors. If i cant then ill tow it to a shop. I seen no metal fuel bowl has always been clean when changing the filters. But i guess the pictures describe whats been down there.
P0088 code its never been re flashed either i had it booked in for the 12th because the code came up and my research on hear says a reflash may fix it. Also wondering if the wires coulda chaffed also.
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post #2 of 4 Old Today, 12:09 PM
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I don’t have any input on your no start, but I will say that upon digging deeper into the PCM flash for the HPFP, it seems that it’s just a temporary bandaid and when the pump goes eventually, it will take a lot more with it. I’ve been looking for a dealer that knew what I was talking about as far as flashing it and have decided to just replace it unfortunately. Mine also threw the P0088 code which led me to the HPFP. I’m not sure wether or not that could lead to a no start.
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post #3 of 4 Old Today, 02:26 PM Thread Starter
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Is your fuel cooler pump working? I found i got p0088 when my fuel cooler rad had a leak. Replaced it and made sure pump worked. Never got the code again after that. I ran fine with the code all winter long. Summer came and fuel kept getting hot and put it into limp mode. Replaced it and ran summer fine till now. Codes back and wondering what to replace.
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post #4 of 4 Old Today, 03:39 PM
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Yes fuel cooler is working. Temps in normal range according to my tuner. I narrowed it down to the pump by checking the fuel filter for metal shards, referred to on here as the “glitter test”. Literally looks like glitter in the reservoir. I didn’t see any in the actual basin but did find it between the cap and the filter itself. Truck is running fine, would have had no idea if it didn’t throw the code.
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