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  1. G

    Rough Idle No Check Engine Light

    thanks Blue M&M! maybe i can create a smoke machine and insert it - where is the best port of entry :) i am also wondering if there may be a kink in the PCV valve hose or if i could have a bad coolant temperature sensor and maybe a fuel pressure regulator? not sure where to find those...
  2. G

    Rough Idle No Check Engine Light

    thanks m&m! Checked for hoses being disconnected throughout - no signs of any unattached hoses - in fact i disconnected vacuum line frim EGR valve and plugged it with a screw to try and force an EGR valve fault which eventually did set the check engine light and EGR fault; and when i restored...
  3. G

    Rough Idle No Check Engine Light

    Just had the OEM 5.0 Liter motor in 98 Ford Explorer replaced with a younger 80,000 mile from the junk yard. Experiencing a Rough Idle condition after engine has warmed up and stopped at traffic light - can’t get a fault generated. idle is intermittent as it is fine for 10-15 seconds then goes...
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