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YT90SC

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YT90SC last won the day on September 6 2019

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About YT90SC

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  1. Has NOTHING to do with the trans and everything to do with eliminating drag. This saves fuel because the further you coast, the less fuel you use. IF you want the engine/trans to help slow, use Manual mode and manually downshift it yourself or use tow-haul mode.
  2. YT90SC

    F350 Rear Differential and Axle

    I believe SRW get the Ford 10.25, Lighter DRW get the Dana M275 and heavies get the M300. Hard to tell without your axle tags or VIN. Front axle is still a Dana 60.
  3. YT90SC

    Hard to start

    When you say "turns over roughly 3 times" do you mean that it takes 3 times of cycling the key? The ambient air temp where I'm at dropped a lot, so glowplugs are going to become more necessary. Are the plugs good? Did you recently refuel and it started doing this? Beyond that, it is scan tool time with an experienced wrench behind it.
  4. YT90SC

    OBD2 Acceleration Value by Cylinder

    Without a frame of reference (actual RPM drop + or -), that is basically useless, especially since the traces are out of firing order and the time sample size is too large for adequate misfire monitoring. It would appear to me that it is also flat wrong as you are accelerating the vehicle, so the cylinder acceleration should *all* be positive. Is there something you're trying to diagnose?
  5. Just when you think that they might finally be starting to get a hold on QC, Friday Ford issued a service message about "contamination" of the washer solvent bottles with brake fluid on the 20 Explorer/PIU/Aviator. No build dates included in the message, but brake fluid and paint are a bad combination.
  6. YT90SC

    Powertrain Malfunction message

    If you read the codes/have them read, DO NOT DELETE THEM. There is other data (snapshot) that will help with diagnosis that is stored with the DTC. Clearing it can make it impossible to diagnose.
  7. YT90SC

    Rear Brake Rotors

    Not too common an issue, to be honest. Stuck caliper slides? IF it was warranty, the rotor measurements before and after should have been taken. Any chance they were on the R.O.?
  8. YT90SC

    Flat rate tech

    Wow. Blast from the past! Basically lack of use. Everyone moved to Facebook's tech forums.
  9. PTUs are truly lifetime filled! When it blows up, that was it's lifetime. Circumference of tires is CRITICAL on these. The maximum allowable difference is like 1/4 inch. If it gets towards a half, you WILL shell the PTU. Rotation at every oil change and NEVER mis matching or putting just a pair of tires on is vital.
  10. At the time, the minivan market was still substantially led by Mopar. Competitors had never taken a big share from them, and Ford's examples always were lacking. Aerostar was plagued by trans issues, and helpless in inclement weather in the cheaper RWD versions. Service ability was poor due to the super tight engine bay. Early Windstar had headgasket, front cover and trans issues. Later Windstar kept the trans and front cover issues and still lacked the dual sliders found in competitors. Freestar was pricy, bland, tinny, felt cheap and didn't offer any real reason over the competition. So, like Harley Lover said, best to not associate with those. Flex is fairly upscale and sliders present *huge* issues with NVH, not to mention power sliders are problematic in all makes.
  11. PTS has been down/slow for a significant amount of time each day this week. Acting like a "tech company" is a pretty lofty goal when you can't keep a necessary-to-dealership-business website operational. Oh... and they REQUIRE I.E. to access it...
  12. As for offering baby knocky stink in the high end, It is a lot like the heated windshields in the late 80s. Take rate was low because people who had Continentals and Taurus LX's had garages and the glass was always problematic. Just like VERY FEW Platinum owners want to deal with DEF, fuel additives in the cold, or higher costs in maintenance, repair and fuel. The take rate also goes down due to the fact that 3.5 HO stomps it in every single metric other than fuel economy.
  13. YT90SC

    EVMV system E450 Super

    The PCM (Powertrain Control Module) sends a signal , which is HALF of the duty cycle it wants, to the FPDM (Fuel Pump Driver Module) that supplies voltage to power the pump based on inputs from FRP (Fuel Rail Pressure sensor) to the PCM. More often than not, the FRP reads low for a given pump duty cycle and the PCM misinterprets it as a sensor issue, when it is in fact, the pump not outputting enough pressure. You need to check ACTUAL fuel pressure vs the sensor while the issue is occuring, remembering that the fuel pressure is referenced to manifold vacuum so it will differ from the gage. FWIW, it is usually the pump, high resistance in the FPDM ground, or, in the case of the same era F150, the case rotted open on the FPDM.
  14. YT90SC

    Securicode but no keypad?

    ALL BCM's (Body Control Module) are shipped with their keycode card, if they have the ability to use it or not. Akirby is right. Only for entry functions.
  15. YT90SC

    FSA 20b34

    No. Updated cooler assembly.
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