Well now that we all know the answer it is time to FINALLY change the part that failed. Who would have thunk, Power Steering Pressure Switch setting an EVAP code!? Likely won't be the last strange thing we see.... -Enjoy!
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50 thoughts on “Ford escape: repair verification part iii”
  1. Avataaar/Circle Created with python_avatars Antonio Claudio Michael says:

    Evap system and Power steering pressure switch is the repair Very intriguing and interesting good find Eric O @SouthMainAutoRepairLLC

  2. Avataaar/Circle Created with python_avatars Tom Beilman says:

    You sir are the auto wizard

  3. Avataaar/Circle Created with python_avatars J.O.A.T says:

    Hey I've had ideas come to me at the most inopertune time. Either way you fixed it. One for the memory bank.

  4. Avataaar/Circle Created with python_avatars Thinking is right. says:

    I鈥檓 pretty sure that a dealer mechanic wouldn鈥檛 be able to figure that one out, but would probably suggest that it鈥檚 time for a newer car. Thank you for your persistence.

  5. Avataaar/Circle Created with python_avatars Shane Harrison says:

    Definitly one for the books

  6. Avataaar/Circle Created with python_avatars Doug Kubash says:

    Well Done! It sure pays to be thorough! A mechanic better keep an open mind and be prepared for anything like you do.

  7. Avataaar/Circle Created with python_avatars Michael Diaz says:

    I knew it right away? Because it's a ford!! Haha! Of course the evap. System is connected to the power steering pressure switch?!

  8. Avataaar/Circle Created with python_avatars Glen Adams says:

    So glad you posted this! If you hadn't I'd have never figured out my 2013 f150 5.0 fx4 Air mass was flaking out due to AC pressure switch! Who knew, thank you so much for the work you do in posting these!

  9. Avataaar/Circle Created with python_avatars hoodheisenberg says:

    You are such an awesome all around guy.

  10. Avataaar/Circle Created with python_avatars Ron Walston says:

    Just had the same problem with my daughters Escape. Would not drop out until steering wheel turned. PPSPS PID would not switch from high to low. Found an article on web regarding this. Feel your pain

  11. Avataaar/Circle Created with python_avatars JOSEPH LANG says:

    Need more that's your problem lady bangs.

  12. Avataaar/Circle Created with python_avatars Hola! Steady Eddie says:

    Definitely worth a three part video diagnosis and repair. Can you imagine," Maam, the reason your fuel tank pressure sensor illuminated your Check Engine light is because your power steering pressure switch went bad". Yea right! Thanks for the vid.

  13. Avataaar/Circle Created with python_avatars Jack Swager says:

    Excellent diag and repair.

  14. Avataaar/Circle Created with python_avatars Marty Jansing says:

    what the 'book' going to pay on that repair…took seconds to r&r sensor????

  15. Avataaar/Circle Created with python_avatars Wes Hawkins says:

    Honestly I don鈥檛 think this was a bad diagnosis at all. I think you did a hell of a job. Still might be suspect of a bad diode somewhere in the ECM.

  16. Avataaar/Circle Created with python_avatars 住讘转讗 专讘讗 says:

    I have a new slogan for you Eric
    -If I can do it, you can't do it.

  17. Avataaar/Circle Created with python_avatars Donnie Robertson says:


  18. Avataaar/Circle Created with python_avatars Daniel Jim says:


  19. Avataaar/Circle Created with python_avatars Sarah Sargent says:

    Well done

  20. Avataaar/Circle Created with python_avatars Jim Salmi says:

    Should have used some brake cleaner on it. LOL

  21. Avataaar/Circle Created with python_avatars Willie Gillie says:

    My gut was telling me there was a dead spot in the tps. I was sure scratching my head when you found the fault in something as odd as the power steering switch. Nice going Eric. Some days ya just have to go with MeMaw.

  22. Avataaar/Circle Created with python_avatars Willington Gan says:

    Persistence of a true genius pays off for customer!

  23. Avataaar/Circle Created with python_avatars Highly Polished Turd says:

    What next… Changing the channel on your TV sets a misfire code? Turn the wipers on and the toilet flushes?

    I'm a half-way decent backyard mechanic, at most. This diagnosis would have had me running away, screaming, curling up in a fetal position, and possibly sucking my thumb. Man, not only do you have a lot of knowledge, but sheer grit for hanging with a tough diagnosis.

  24. Avataaar/Circle Created with python_avatars Kaye Wortman says:

    nice to watch yoiur vidios cause I don't have the cool tools you have or ther money to buy them…you keep me out of hot water with the MRS alot so thank you for that…Keep them coming and yes…I Can Do it

  25. Avataaar/Circle Created with python_avatars Anonymous98 says:

    The strangest repair I ever saw on YT was a guy with a 2.4L Malibu that had a lot of miles on it, and suddenly one day he had the 鈥渞educed engine power,鈥 鈥淎BS,鈥 鈥渇ix the Stabilitrac鈥 and similar money lights come on, which would result in the car stopping and leaving him stranded on his urban commutes to and from work. He tried and tried but couldn鈥檛 figure it out, and finally asked his father to go with him so he could abandon the car and his father could give him a ride home, but when they got there his very wise father asked him if he had changed the antifreeze. At first he thought his father had gone crazy, but he humored him, bought the antifreeze and drained and changed it in the parking lot, where he had planned to remove his license tags and just leave the car. The car straightened up right away, the money lights went out, and when he made the video, he had been driving the car again for quite awhile. From other sources, it appears that worn out GM antifreeze becomes a low voltage battery and in the right conditions generates enough electricity to screw up a number of delicate electronic circuits and ruin the drivability of the vehicle. If you have a five year old GM with electronic gremlins, remember to check on your antifreeze.

  26. Avataaar/Circle Created with python_avatars Ronald de Rooij says:

    I still think it is the O2 sensor. It must be. It always is.

  27. Avataaar/Circle Created with python_avatars CTSCAPER says:

    I don't think I could have done that one. You barely pulled it off with a lifetime of training and experience.

  28. Avataaar/Circle Created with python_avatars Buford Justice says:

    I watched all of this expecting it be the large intake manifold tube from pcv valve that cavitates when revving up. I saw that this ford had oem one there and was sure you would rev in hard with camera showing it. Interesting it was something else. But my wifes 2001 ford escape has had almost every weird problem that took many hours of reading forums and diagnosing that car. Even had the infamous green wire defect to ecm causing random coil misfires. Anyhow if you already didn鈥檛 know ford escapes have weak rubber tube there that is something to know. Enjoy all your vids and Brians mobile1 as well. Hooked on them! Thanks

  29. Avataaar/Circle Created with python_avatars George Shadrick says:

    I think your test rides are the best I love your Gift of Gab oh mother lover crab biscuit and the crusted socket as a bars scene thanks bud

  30. Avataaar/Circle Created with python_avatars Fred Bach says:

    I don't have the drawings, but someone at the factory should identify the method by which the dpt switch noise gets to the evap channel. I can think of a few possibilities.

  31. Avataaar/Circle Created with python_avatars Kevin Johnson says:

    Always nice to see the proof. Thanks for sharing. Still a bit lost, though, on not having the experience of understanding how to follow all the scope data and such.

  32. Avataaar/Circle Created with python_avatars Pecker Wood says:

    Eric I'm very impressed with your conversational tone and overall diagnostic finesse. However throughout have had this feeling like you reminded me of someone. I'm sure you have heard this before so sorry to repeat the suggestion that you are an automotive Beatlejuice! The tone of your voice especially in humorous moments is very much like Michael Keatons in his role as the undead sage. Thanks for the fun all round.

  33. Avataaar/Circle Created with python_avatars Bryan Tasler says:

    The monitor routine in the ECM might be interrupt driven, which would explain why the entire thing slows to a crawl when that PS pressure input is toggling fast. It was meant to trigger once then move on with the rest of the processing, but when it is flipping on and off the CPU spends all it's time servicing the interrupt.

  34. Avataaar/Circle Created with python_avatars Armstrong Family says:

    Wow. I鈥檓 a Master tech and I can say that would have ruined me too…your work ethic is refreshing based on my 10 years experience at the dealership. Tools are only as good as the technician using them

  35. Avataaar/Circle Created with python_avatars Stanward Oshiro says:

    Awesome repair!

  36. Avataaar/Circle Created with python_avatars Nelson Narciso says:

    I think you diagnosed this pperfect. Alot of us including myself would've replaced the pressure sensor and never would've guess power steering sensor good call buddy

  37. Avataaar/Circle Created with python_avatars Rick Higson says:

    Nice job!

  38. Avataaar/Circle Created with python_avatars Tabletilter8 Gaming says:

    that is nuts

  39. Avataaar/Circle Created with python_avatars John Schmidt says:

    Make sure you send that diagnosis to Ford. You might get a footnote in a repair manual…

    One hell of a find.

  40. Avataaar/Circle Created with python_avatars Duncan Mac says:

    That'a pretty weird. Glad you got it sorted. Thanks for the video.

  41. Avataaar/Circle Created with python_avatars MaryandDale Davidson says:

    I do my mostly do my own work. I got tired of taking it to shops that would throw parts at a problem and not diagnose the REAL problem and charge me for each part swap. With OBD2 I can do the same thing and only pay for the cost of the parts, not the labor. The trick is if you have a difficult to diagnose problem is to start swapping out the most inexpensive parts first. Even doing it this way my expenses are less then 1/4 of what I would spend taking it to a garage that does not do thorough diagnosis. Of course channels like this and online forums are valuable resources also. 2001 Ford Escape XLT 230,000 mi and still running well.

  42. Avataaar/Circle Created with python_avatars Ga Ad says:

    So what's the takeaway from this? Is it "when you see a problem like this (the evap system), but everything checks out ok, start looking at other sensor outputs?" I don't have the wiring diagrams, but is the PS pressure switch wiring near the Evap wiring? Is it inductive interference, or was the problem strictly caused in the hard wiring?

    Do we attribute this to the "blind hog finding the acorn" syndrome, or good, hard diagnostic skills? Or something in between? Regardless, it was entertaining and educational – thanks Eric O!!!