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Come along with Eric O. at the SMA shop as we have a look this 2005 Chevrolet 3500 Dually Duramax 4x4 with an Allison Automatic that is having some shifting problems. It has a code P0700 stored in the PCM. It also has a code P0773 Shift Solenoid E Circuit Fault stored in the transmission control module. Let's see what's wrong!!
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45 thoughts on “Chevy duramax w/ allison automatic – shifting trouble p0773”
  1. Avataaar/Circle Created with python_avatars Dj Wilson says:

    For a regular dude just doin regular dude-nostics, I've found myself enthralled with diagnostics on your channel now.

    Sometimes we overthink shit and make the mistake of not having a set way of doing diag. We are often putting the cart in front of the horse. Appreciate the channel (surprised communist State of New York allows transmission on YouTube 🤣)

  2. Avataaar/Circle Created with python_avatars jim says:

    is there a special way to remove that connector? I'm not seeing a retainer clip but didn't just want to pry it off. so can you share steps to remove the connector so it doesn't get damaged

  3. Avataaar/Circle Created with python_avatars DigitalMonkey ! says:

    The R and G stand for Red and Grey on the TCM if you pull the other connector out the cap on it would be grey instead of red. If you push in on either side of the red cap piece there’s tabs that release it. Pull it off gently and carefully and you’ll see the metal pins those are common to come loose a little bit due to vibrations. Just make sure they are all seated properly and put the cap back on and plug it back in.

  4. Avataaar/Circle Created with python_avatars Chris Bentley says:

    I love these hunt the fault video. Until next time.

  5. Avataaar/Circle Created with python_avatars TheTruckGuy says:

    Recently just picked up a 05 GMC Sierra 2500 6.6l lly I got on the gas hard and it threw the mil code p0700 only code that came up on a cheap scan tool I got it off and haven’t had an issue since but unless hard on throttle! Trying to go the cheapest way first what to lookninto

  6. Avataaar/Circle Created with python_avatars Edward Carberry says:

    This sounds like the GM Doc# 2908267?
    No Reverse With DTC's Range inhibit- Sept 10, 2012.
    Mine is in the mentioned trucks.
    Went to the Loco Dollarshop asked about it without the GM Doc#. Naaaa didn't know anything about it.

    Oh welll
    Guess that is why the Engine lite is and has been on for awhile!!!!!!!!!!!!!!!!!!!!!!
    Maybe not! Don't see that code mentioned. FYI for anyone else then.

    The plug into the transmission then?
    Oxidized connection then between the two plugs? if so put a little vaseline on them

  7. Avataaar/Circle Created with python_avatars Vermont Aviator says:

    Great tech.. appreciate your vids..

  8. Avataaar/Circle Created with python_avatars MrBULLRIDER13 says:

    Check the pins at the tcm connector. Notorious for coming loose because the dumbass that decided to put it in there with the wires at a 90degree angle

  9. Avataaar/Circle Created with python_avatars LittleOldBoat says:

    It was probably that dielectric past preventing connection! LPS Preferred connector lubricant

  10. Avataaar/Circle Created with python_avatars gary bowles says:

    Great video; had to be pin to pin; looking for evidence; that drive shaft is heavy rusted; lots of salt road driving; I'm thinking salt crusty in the connector; dope connector with heavy coat of di-electric grease; seal it the best you can. Great job there.

  11. Avataaar/Circle Created with python_avatars 505 fast life says:

    When checking those pins for ohms what do you have the black lead on I can’t tell? I know you don’t answer viewers questions but can somebody please help this would help this want to be tech tremendously.

  12. Avataaar/Circle Created with python_avatars Paublus Americanus AMERICANUS says:

    To make sure of pin-fittment I would twist each pin slightly so with dielectric grease he wouldn't come back this year. I feel this will be a comeback but with the Communists in your govvymint piling salt on your lives the truck may rot away before it does

  13. Avataaar/Circle Created with python_avatars Hammertree masterchief says:

    How do I get the plug undone for harness i don't want to break it

  14. Avataaar/Circle Created with python_avatars william t Montgomery says:

    I said previously that my problem was just when cold, but this past week we were feeling blah and never drove the truck fo 8 days, went to drive Nothing money light on code PO700 hooked up scanner problem solved, I have pulled our 36' fifth wheel all over never had A problem, guess its only when truck sits for several days, in garage, I think I will take connection apart clean well with electric clean Add some of that high price Stab-lent 22 and see what happens,, yes I cleared code. Will keep you updated if I have problems, Thanks Eric you have been A big help.

  15. Avataaar/Circle Created with python_avatars ANDREW NEMETH says:

    Stablent 22

  16. Avataaar/Circle Created with python_avatars Ed says:

    Thank you. Awesome

  17. Avataaar/Circle Created with python_avatars michelediane miller says:

    liquid in connector????

  18. Avataaar/Circle Created with python_avatars Slim says:

    My Impala have shift solenoid po753 code . Wonder if that's the fix for it. Mechanic dropped my sub frame. Think he may have broke wire

  19. Avataaar/Circle Created with python_avatars erry newman says:

    The butt connectors with solder inside do suck they barely get soldered

  20. Avataaar/Circle Created with python_avatars Ernie Chombok says:

    I run a digital printing press that has hundreds of molex connectors. Sometimes a component seems to fail and one of the first things the manufacturer says to do is to reseat the connectors. Most of the times it fixes the problem.

  21. Avataaar/Circle Created with python_avatars Anthony Barbee says:

    As always great job you should be a teacher you do such a great job showing how you diagnose the job

  22. Avataaar/Circle Created with python_avatars Robert Weeks says:

    damn 299,999th view, one away from a glorious 300,000

  23. Avataaar/Circle Created with python_avatars Alfredo Pasillas says:

    As a certified Allison mechanic first thing you do is disconnect the OEM harness at the transmission. Check resistance on wires for circuit from tcm to end if harness. You find which wire is the problem then you repair wire.

  24. Avataaar/Circle Created with python_avatars Thunder Road says:

    That’s normal for that engine and transmission. Owned a few over the years. Not a good truck to use for snow plow contracts are hauling equipment around in the summer. If you want to stay working

  25. Avataaar/Circle Created with python_avatars John Williams says:

    Dead set I enjoy these more than CSI MIAMI any day lol

  26. Avataaar/Circle Created with python_avatars Gabrielle Taylor says:

    dude, do yourself a favor and pick up a power probe from snap-on, has a visible indicator as well as an audible tone for power and ground, can read ohm and can supply 12v or ground to any circuit.. has saved me hours,

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

    Strange pudding for today better luck when it comes back if it dont keep the fix bud it happens at times

  28. Avataaar/Circle Created with python_avatars Bob Gardner says:

    Spray the contacts with WD40. They are hi resistance. Oxidized.

  29. Avataaar/Circle Created with python_avatars Stephen Bullock says:

    Great job as always 👍

  30. Avataaar/Circle Created with python_avatars Robert Threm says:

    Honest Abe Eric

  31. Avataaar/Circle Created with python_avatars Robert Threm says:

    Anyone else would have put the transmission in for $4,000 and then if there's a problem fix that too

  32. Avataaar/Circle Created with python_avatars Robert Threm says:

    I have a 2005 GMC Sierra 1500 I would say lift the top portion of fuse box and see if there's any wires that are burning

  33. Avataaar/Circle Created with python_avatars cbar30 says:

    The old Shivy

  34. Avataaar/Circle Created with python_avatars Dwayne Young says:

    Jumper wire mod doesn’t apply to this year?

  35. Avataaar/Circle Created with python_avatars william t Montgomery says:

    I have the same truck first time it acted up is when I had not driven it in 2 weeks and it was extremely cold had the same codes clearly them and had no problems until A year later again very cold never A problem when temperatures are comfortable it’s acted up about 3 times I just clear the codes and it works fine wish I knew but sure it’s A cold weather problem

  36. Avataaar/Circle Created with python_avatars Timothy Coleman says:

    Nice video, thanks.

  37. Avataaar/Circle Created with python_avatars William Lambert says:

    CRC 2-26 is what I think you were trying to refer to as a electrical lubrication.

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

    Skunked by a wiggle no biggie you'll have days like that I know I did

  39. Avataaar/Circle Created with python_avatars J B W says:

    Stabilent 22……Good Stuff.

  40. Avataaar/Circle Created with python_avatars Donald Rackley says:

    Great video Mr owe.need more of the same.

  41. Avataaar/Circle Created with python_avatars Charles Marshall says:

    I like watching your video . What is your phone number I would like to call you and ask you something.

  42. Avataaar/Circle Created with python_avatars R Guy says:

    I saw you used Scotch 33.👍 Sometimes the connector in the transmission leaks a little. Brake cleaner would have helped.

  43. Avataaar/Circle Created with python_avatars speedy gonzalez says:

    another time when a probe with a tone unit to find the break

  44. Avataaar/Circle Created with python_avatars Winny says:

    Allison transmission on transit bus 🚌 do the same thing

  45. Avataaar/Circle Created with python_avatars Matt C says:

    The old 360 roundabout! Another classic move! 🙂 Another entertaining video!

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