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  1. S

    1999 XLT 4.0 v6 SOHC need help trouble shooting

    Have you checked fuel pressure and volume? If so, and in spec I would next check for restricted exhaust.
  2. S

    1999 XLT 4.0 v6 SOHC need help trouble shooting

    Looks like you might have a faulty MAF.
  3. S

    1999 XLT 4.0 v6 SOHC need help trouble shooting

    Try disconnecting the MAF sensor and see if it runs normally. A dirty or faulty MAF will do all sorts of nasty stuff. By disconnecting the MAF, the computer will go into a set parameter mode.
  4. S

    99 Mountaineer Cam Synchronizer P1309 code

    Use a scan tool that can erase the Keep Alive Memory. I've had several that will continue to set the code when the issue has been resolved, resetting the Keep Alive Memory wipes out the old parameters.
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