» » »

Ford Q&A

Ask Your Question

1997 Ford F-150 Question: code p0303 only after road test replaced everything plugs,wires coil and sensors

 

Question

water man, 4.6L V8, Hudson, FL, May 29, 2014, 16:56
 Rookie

did intake gaskets. now after all compression tests I have 0 compression in cyl #3. code only comes back after resetting with load after 40mph also a/c switches from vent to defrost on low idle then fixs after 1500 rpms this also effects the brakes. any ideas or tricks I can do before removing head and/or replacing motor?

1 Answer
Flag This
  • Answer #1

    pushrod May 29, 2014, 18:24
    Profile_thumbnail
     Master

    No magic fix for 0 compression!! Nothing can be done externally that is.....

    Flag This
  • Reply

    water man, May 29, 2014, 19:28
     Rookie

    according to prevoius mechanic that worked on it prior to me on buying it said he did intake gaskets and it developed the misfire after the fix. do you think its possible he dropped something in the cylinder or something

    Reply
    Flag This