Recent content by Mongolas

  1. M

    Issue starting 2015 Yukon after changing transmission wire harness

    That's a lot of good information, I appreciate it. My mechanic was nice enough to come down and use his scanner (his shop is just down the road from me) and it threw a bunch of codes indicating one of the main connectors was not connected. Not sure how it wasn't since the thing can only be...
  2. M

    Issue starting 2015 Yukon after changing transmission wire harness

    Okay that sounds good. I have a mechanic just down the road from me that I talked to earlier. He said if he has time later this afternoon, he'll come down and scan my issue. But he also doesn't think the fluid being in contact with the connector is an issue, which was something I wondered, so...
  3. M

    Issue starting 2015 Yukon after changing transmission wire harness

    So it would seem that I dont have much choice but to open it back up again and check the connections? Will I need to clean any fluid off of the connection before connecting them?
  4. M

    Issue starting 2015 Yukon after changing transmission wire harness

    Also, I noticed in one video that someone made doing the same repair that they connected all the wire harness connections without cleaning it, so I followed his example. I hoped that the fluid isnt xonductive but that is currently my main concern and the reason im 99% sure I did it right and not...
  5. M

    Issue starting 2015 Yukon after changing transmission wire harness

    Thank you for your response. Yes, the dash cluster, headlights, internal overhead lights, as well as the screen in the center seem to work fine. Everything appears to be normal except the engine starting. Radio even kicked on after disconnecting the battery for a bit and reconnecting it. I...
  6. M

    Issue starting 2015 Yukon after changing transmission wire harness

    So I have a 2015 Yukon XL Denali with the 8 speed transmission. I just finished installing the wire harness with the temp sensor, thankfully it was the two piece wire harness so I didn't have to take out the valve body. I'm pretty sure I got the connections all in the right spot. Got the oil...
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