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    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    Nope. Mechanic didn't see slipping on the scan during it niether which is what led him to suggesting harness and solenoids be changed.
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    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    It runs great in 3rd, thankfully I live in a small community so I don't really need to go faster, it'd just be nice.
  3. T

    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    Copy, thanks man.
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    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    I had someone else riding with me who knew the scanner better than I last time I tested it. He said there was no slipping. Quote, when asked if there was slipping, "it was spiked, solid" haha he's a heavy equipment diesel mechanic but also timber falls with me.
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    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    Would you just get rebuilt one if you were kinda tight on cash?
  6. T

    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    I had someone else riding with me who knew the scanner better than I last time I tested it. He said there was no slipping. Quote, when asked if there was slipping, "it was spiked, solid" haha he is a heavy equipment diesel mechanic.
  7. T

    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    Will do. Might be a little while, not much time off rn. But I hate when people leave threads without telling their fix so I'll def post it.
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    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    And Awesome, thanks man
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    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    Alright, but if it reads that it is slipping prior to changing the new tcc valve(and afv) then it would still need to overhauled correct? So best thing to do would be to do that first? Or could the valve cause the scanner to read slipping thus meaning that i need to start there first regardless?
  10. T

    Abs light on with no codes?

    It had p065 p0222 p0221 Tried to solder the module and those all went away but then had p0151. Replaced the module which led to having no codes, the ebrake light no longer coming on, but the abs light still comes on. Are you saying that its possible that the scan tool used to read those codes...
  11. T

    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    Thank you for all that info. The fluid looked good, clean, no deris, smelled fine. I have access to a snap on scanner. But I'm a timber faller/tree climber who know only random stuff about vehicles, learned out of necessity, so I don't know how read all that stuff exactly. Always caught on fast...
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    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    Assuming it's the original trans then 186k. But 1-3 shift very well. Been driving it for over a year locally staying 55mph or less. Does that still sound like a torque converter issue?
  13. T

    Abs light on with no codes?

    2000gmc yukon xl 2500 Had some codes so I switched out the module and all the codes went away. However, the abs light still stays on from the moment I start the vehicle. What could this be?
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    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    Sorry p1870, I've researched it for hours on end.
  15. T

    P1870 on 4l80e 2000 yukon xl 2500, changed harness and solenoids...

    Code p1870 is still being thrown. I had heard the abs issues I had with the ebcm might have caused it. I got the abs codes fixed but the light still stays illuminated with no codes thrown. I changed out the harness and solenoids for the transmission although this one also leaks through to the...

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