2006 Ford F-350 Super Duty Questions

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Just changed EGR valve hoping this would help. Tailpipe smokes a little bit bluish from time to time when traveling slower or when engine is not up to full operating temperature. Please help. Thanks.
Also hard to start im guessing fuel pump is going out
i changed the float assembly that didn't seem to help unless i have the wrong one. tank could have 5 gals in it and read 1/2 full its 38 gal tank any help would be nice thank you larry
battery went dead and reset the computer to safe mode. I am experiencing low/rough idle, engine light on. How do I remedy this?
The check engine light came on when I accelerated rapidly to pass someone. Then a few hours later I accelerated rapidly again and the light began to flash for a few seconds. I drove the truck one more time and the lig...
5lb boost 0.0 on front I don't know how this could be
before changing the glow plugs the truck was very hard to start but would stay running. I notice an oil residue on the old glow plugs, is that normal. Truck will not stay running after 3 seconds.
This normally happens in cold weather. Any recommendations or solutions?
only at high rpms
i have traced it to #2 fuse and then to the blue plug on insterment cluster but every thing works fine gauges ect. ? bad cluster??
The light is off when you first start the vehicle and comes on when you drive. The dealership has reprogrammed it but I still have it come on. Does anyone know what I need to do?
So The pump is connecting positively, but the negative is not connected to the ground its going into the relay or computer!!
Hard shift when selecting trasmission modes. Takes forever to get to 20 MPH from stop. RPM at idle is high, 1,000 rpms.
Just bought this truck used. Only 71k miles. When pulling Trailer, particularly when I have to excellerate up hills, yellow wrench light comes on and I have a significant loss of power. If I pull over, restart, it s...
Service engine light is on, and diagnostic mentioned ignition coil. On this sight I saw replacing plugs and coil boots. What are the coil boots?