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About epizoan

  • Rank
    New Escape Member

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  • Region
    U.S. Northeast
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  • Current Vehicle
    2009 Ford Escape Limited
  1. Hello everyone! I have a question about my uncle's 2009 Escape 3.0. I have been chasing a Cylinder 5 misfire on a 2009 Escape Limited. Backstory; About 2 months ago a broken oil cap caused oil to coat everything in the engine bay. Shortly thereafter, it developed a #2 cylinder misfire and a #2 injector electrical code. I tested the injector and found it to be faulty so I ordered a new injector and that fixed the problem at that time. Fast forward a few weeks, it developed another misfire. Random multiple misfire and a cylinder 5 misfire. No supporting codes. Steps I have taken and troubleshooting. New Plugs (Denso Double Platinum) New Injector Harness (Old harness was heat damaged. Insulation was broken down on wires and retaining clips were all breaking) Test and clean (electrical connection) all injectors. Replace injector O-Rings Check for vacuum leaks (carb cleaner while running and smoking intake) Clean and inspect all electrical connections under the hood. (removed any residual oil that may have crept in) Troubleshoot misfire by swapping 5 and 4 injectors. Troubleshoot by swapping 5 and 4 coils. Compression test (all cylinders within 5% of 120 psi) Checked fuel pressure pre start and post start (60 psi pre start and steady above 55psi at idle up to 3500 rpm) Inspect all coils for damage and/or wear. Checked timing chain for tension and confirm timing. Currently Cylinders 2, 5, and 6 all exhibit misfires. 2 and 6 stayed under 60 during drive cycle, 5 registered hundreds of misfires. Fuel trims (LT) are max positive on B1 (+29) and -16 on B2. Idle continuously degrades and will not clear up until a good bit of open throttle. (Highway driving is smooth) I was thinking that the timing skipped, but verified it didn't.. But I suspect it might have something to do with the VVT. I am uncertain how to begin troubleshooting the Ford VVT system. I would suspect that 1,3,5 would misfire if it were a valve timing issue... But I have seen a lot of odd issues diagnosed 180 deg. from initial hypothesis. I am hoping that some techs with more experience than I can chime in with ideas and troubleshooting ideas. thank you in advance, Epizoan