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Something isn't Right

Thread in 'General Information' started by Jerry Acheson, Mar 9, 2020.

  1. Jerry Acheson

    Jerry Acheson Member 2nd Gen Owner 4 Wheel Drive V8 Engine

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    I bought my 07 Limited last fall with 192k miles. It threw a P0308 code right away. Ford dealer told me it was #8 coil. They replaced that coil and all 8 plugs. The code returned almost immediately. A shade tree mechanic friend replaced 8 injectors and the code has not returned.

    Since I bought the truck, I have been experiencing random symptoms like hard shifts, brake dragging, and short runs of mild vibration like rumble strips. This is all subtle but annoying. I ran a can of Seafoam through it without result. I always assumed that some of this was due to tires. I just had new tires installed but that didn't change anything.

    What are your thoughts? ODBC2 is not displaying any codes.
     
  2. Todd Z

    Todd Z Well-Known Member 2nd Gen Owner V6 Engine V8 Engine

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    Being that you have a used Ford truck with 200K miles your going to have "annoying" things.... Drive shaft bearing, The other coils are probably going too.. Common issue causing vibrations. Worn struts, Tire pressure front end bushings all get worn at that mileage or way earlier...
     
  3. Jerry Acheson

    Jerry Acheson Member 2nd Gen Owner 4 Wheel Drive V8 Engine

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    Rockauto lists several coils for this 07 4.6l from the mid-teens to $40 each. Which is the best value? Thanks.
     
  4. G Man

    G Man Member 2nd Gen Owner 4 Wheel Drive V8 Engine

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    I get the rumble strip thing as well from time to time, it goes away if I switch OD off or change my RPMs. I'm at about 150k, 2007 V8. I am planning on getting the tranny fluid and filter replaced as I have heard that can fix the wonky transmission and stop the rumble strip thing.
     
  5. Todd Z

    Todd Z Well-Known Member 2nd Gen Owner V6 Engine V8 Engine

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    I like standard or other name brands.
     
  6. Jerry Acheson

    Jerry Acheson Member 2nd Gen Owner 4 Wheel Drive V8 Engine

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    We installed the Standard coils last weekend but I haven't driven it much due to the 'stay at home' order. I don't believe the problem is solved but I'll report when I've driven it more. At this point, I've replaced plugs, coils and injectors and I ran a can of Seafoam through the tank.

    I also checked in with Jiffy Lube to have the transmission fluid exchanged but they won't service a transmission with potential issues.
     

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