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6.4 fuel issues
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  1. 6.4L Problems Forum
    2008 6.4 fully deleted H&S mini max 170000 miles. Replaced fuel rail pressure sensor a few weeks back (truck threw the code for it) and truck has run perfectly until a few days ago. Truck will hold 4.8 and idle sitting still all day. When the truck moves around the fuel pressure will drop and go...
  2. 6.4 Motor Problems
    truck threw these codes P006B P2563 P0087 U3F25 its -30 truck wouldn't start. got it in a warm garage to let it thaw and began to drain the water separator on the frame rail after a hour and a half of sitting. I drained 1/2 gallon of crap out of it and let it run. the check engine light then...
  3. Engine 911
    truck threw these codes P006B P2563 P0087 U3F25 its -30 truck wouldn't start. got it in a warm garage to let it thaw and began to drain the water separator on the frame rail after a hour and a half of sitting. I drained 1/2 gallon of crap out of it and let it run. the check engine light then...
  4. 6.4 Motor Problems
    So I filled up on the way back from Maine.... Got on the Highway in about 5 miles got the "drain water seperator" indication on the dash.... Pulled over drained it... Got on the highway in about 5 miles got it again.... Couldn't pull off for 15 min... The truck started to lope and surge...
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