Jump to content

Tran error codes


Recommended Posts

Posted

New to this forum so I hope my question is acceptable. I've had trucks all my driving life but a few years ago I fianly bought a four door sedan. I can't find another forum like this one so I am posting my question here. Don't mean to offend but if my question is way out of the ballpark for this forum, just say so.

:thumbs:

My car suddenly stopped up shifting. Fluid is clean filters were not dirty. I am getting two selenoid error messages on the internal diagnostics of the northstar system

PO29 and PO94. Can this be researched further without tearing into the tranaxle?

Posted

Going to need more information to help you out. What year, make, and model is this car? Also, where did you get those codes from? I've looked through the codes and can't find those.

Posted

Copdodger,

It is a 95 Cadillac Seville. The codes were for the two shift selenoids inside the tranny. They are handled as a kit by GM so they must have a coomon failure point. I've had them replaced and wilol pick the car up later today.

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
  • Forum Statistics

    250.3k
    Total Topics
    2.7m
    Total Posts
  • Member Statistics

    342,724
    Total Members
    8,960
    Most Online
    No1UKnow
    Newest Member
    No1UKnow
    Joined
  • Who's Online   5 Members, 1 Anonymous, 1,150 Guests (See full list)

  • Latest Articles

  • Posts

    • I included the first gen-cylinder de-activation (active fuel management) in my statement.
    • Hello All!   My 2019 Colorado 3.6 LT, 4WD Crew Cab has approximately 77,500 miles and I recently began experiencing the well-known transmission shudder between about 30 and 65 mph. The problem had worsened to the point that I could no longer attribute it to road conditions - and I had decided to bring the truck to the dealer - when recently, I experienced a sudden loss of power while driving at maybe 40 MPH. Several warning lights flashed, the “Check Stabilitrack” message appeared, and the Check Engine, Stabilitrack, and Traction Control icons remained illuminated. The truck regained driving power, but it stayed in a low gear with unusually high RPMs for the speed. (limp mode?) Because I was only about two miles from home, driving slowly, I was able to make it back and run an OBD-II scan, which showed fault codes U0101, P0700, and U0100. My next trip in the truck was to drive it to the dealer the following day. That trip began normally, but after about a mile I experienced another loss of power, along with the same warning lights and the same “Check Stabilitrack” message. As before the truck remained driveable, but again operated at an abnormally high RPM-to-speed ratio and seemed stuck in a single gear. About a mile later, the dashboard lit up once more, this time displaying “Check 4WD.” Soon after that, I arrived at the dealer. I have verified that the truck still has its original factory transmission fluid, which means it has never received the corrective fluid exchange outlined in GM Technical Service Bulletin #18-NA-355.  That was Thursday of last week and I've heard nothing yet from the dealer.    According to Technical Service Bulletin #18-NA-355 and the build date of my truck, my truck should have the newer LV fluid. I've done a little research and read something about a problem with the wiring harness as well.   Anyone have an insights into this situation?  Thank you!!
    • Having bumper and other body damages can be very frustrating, especially as a result of a parking lot collision/bump. Our team wants to learn more about the damages to your truck so we can look into ways we might be able to help. When you get the chance, please fill out our support form with more details: https://s.gmc.com/support-request . A member of our team will follow up with you as soon as next available. We want to get you enjoying your truck to the fullest again. 
    • Did you even read this article?   Even the title of the article says "U.S.-Iran Deal Doesn’t Mean a Swift Return of Oil and Gas Flows"   Remember, crude oil prices are based on FUTURE purchases by the oil companies.  Gas prices are based on FUTURE purchases by the station.  This article stated that many of the oil producing nations have to restart their processes to get the oil produced.  Then the oil has to be shipped to wherever.  And it doesn't get there overnight.  And most of that oil is not coming here. Check out this site:  https://afdc.energy.gov/data/10621   A graph will pop up to show where the US imports their oil from.  Notice that there isn't a lot of import from OPEC and Iraq.  Most of the US import comes from Canada. The US oil produces are selling their oil on the open market, which is why the US fuel costs went up.  So you're correct, the US oil companies are going to slow walk the price downward.
    • Having codes and an engine light with no hints on what might be causing it is nothing short of frustrating. How long have these concerns been present? We want to know more so we can look into ways we might be able to help you. When you get the chance, please fill out our support form with additional details on your experience so far. A member of our team will follow up with you as soon as next available: https://s.gmc.com/support-request 
  • GM-Trucks.com Clubs

  • Popular Contributors

×
×
  • Create New...