Ford Truck Enthusiasts Forums - View Profile: Mark Kovalsky

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  1. Mark Kovalsky
    Today 12:34 PM - permalink
    Mark Kovalsky
    Most likely not. Any auto parts store I've seen can only check the DC voltage output. A really good repair shop would have an oscilloscope and if you brought them the truck they could check it.
  2. Bdhorton
    Today 12:15 PM - permalink
    Thank You Mark. If I take out the Alternator and take it to Schucks they should be able to check it properly correct?
  3. Bdhorton
    Today 08:40 AM - permalink
    As I mentioned earlier my gauges go haywire when this tranny issue neutrals out. I am wondering if it may be a faulty PCM, or some other component causing voltage issues. I can remove the battery cables when the truck is running and it will stay running and the alternator is providing 13.5 volts. Could these tranny issues be caused by a voltage problem, and could it be a GEM module causing this? Also I am wondering if the transmission not shifting properly could be caused by a voltage issue with the PCM or maybe the VSS at differential? I am stumped on this one.
  4. Bdhorton
    Today 08:35 AM - permalink
    Thank You Mark. As usual you are correct. The other day when the tranny neutraled out on me I attempted to switch into 4WD. The transfer case apparently cycled only partially and was not engaged. Last night after work I started it up and the grinding was still there. I checked the connection on the xfer case motor and it seemed fine. I could not get the xfer case to engage. I disconnected the battery, waited about 5 minutes and reconnected the battery. Turned on key and the xfer case immediately shifted into 2WD. So I am thinking an electrical issue somewhere.
  5. Bdhorton
    Yesterday 11:12 AM - permalink
    Hi Mark, hope you are doing fine. I have been trying to find the transmission problem with my 1997 Ford Expedition 5.4L 4 X 4 with the E4OD tranny. I read a post from November of 2014 that was posted by "fourty03" about his transmission not shifting correctly, neutraling out and when the vehicle was not moving when trying to put in park it was grinding. I have this exact same problem!! Also when this happens my gauges on the dash go haywire. Temp pegged at Hot, No oil pressure, no voltage and zero fuel. I could not find what was the final verdict of this problem from the post. I also saw that you mentioned the TRS sensor. Can a this sensor cause these problems? I have no check engine light at all. I pulled the MAF sensor and I am getting the Check Engine light so it is working but I am not getting any light when this problem occurs. I had to tow the vehicle back home last night because this time it happened I could not get it to go into any gear. Any help is appreciated.
  6. mecdac
    10-18-2016 09:29 AM - permalink
    Thank you for the reps.
  7. bheeres
    10-11-2016 11:32 AM - permalink
    in case you are interesting in knowing what I'm working with.

  8. bheeres
    10-11-2016 11:26 AM - permalink
    Assuming you'll say yes here is what I struggling with I have a 2009 with a 5.4L and ZF trans. From what I am told this is about the worst transmission I could have for trying to tune it. The truck is supercharged and add to that I plan in the sand dunes a lot and the transmission just doesn't know what to do. it will go back and forth between the engine lugging and red line at will. If I could find out a way to manual shift effectively I would do that but the engine continues to rev up way past after I'm made a shift. The engine is tuned with a product called HP Tuners which does not support the ZF trans with more than RPM and Torque numbers you can input.

    So I guess here is my real question, I've been told that I can't just stick a different trans in even if a manual valve body because the 5.4L expects to see inputs from the ZF TCM and I would need to change to a 5.0L with a race harness to accomplish this.

    Any thoughts you can share with me on my issue?

    thanks, Brent
  9. bheeres
    10-11-2016 11:10 AM - permalink
    Mark, would you be willing to answer a question or 2 about some transmission issues I am having with my 2009 F150?
  10. Da_Lariat_Chariot
    10-11-2016 11:03 AM - permalink
    I have a MightyVac at home, I'll take some out through the cooler lines at the radiator. Thanks.

About Me

  • About Mark Kovalsky
    Former Ford automatic transmission engineer.
    SE Florida
    Flying, Antique cars and fire trucks.
    2 Letter State/Province (use "--" for outside USA/
    Country of Residence
    Econline or E-Series
    Current Mileage
    125,000 - 149,999
    Miles per year
    0 - 999
  • Signature
    Former Ford Automatic Transmission Engineer 1988 - 2007

    Nobody has made MERCON since 2006. MERCON V replaced MERCON. Get over it.


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  • Last Activity: Today 12:37 PM
  • Join Date: 08-13-1999
  • Referrals: 1


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