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  1. K

    P0446 Code after starting with Auto Start

    Thanks. I was thinking the to not overlook the obvious. It's not filling very now either, so i'm thinking it may need to be changed.
  2. K

    Best code reader to pull suspension error codes.

    Thank you. Any particular model?
  3. K

    Best code reader to pull suspension error codes.

    I recently replaced the suspension control module on my 2007 GMC Yukon. The old one shorted out and was causing all sorts of electrical issues. Once I removed it, everything went back to normal. I assumed it was the issue and ordered a new one. The was a $500 part and the error message is still...
  4. K

    Best code reader to pull suspension error codes.

    I recently replaced the suspension control module. The old one shorted out and was causing all sorts of electrical issues. Once I removed it, everything went back to normal. I assumed it was the issue and ordered a new one. The was a $500 part and the error message is still there. I have a Autel...
  5. K

    P0446 Code after starting with Auto Start

    I have a 2007 GMC Yukon that has the P0446 Code that seems to only appear after starting it with the auto start. I recently changed the fuel pump and it has only started since then. I pinched the large vent tube when putting the tank on that had caused a slow gas tank fill situation. I removed...
  6. K

    Suspension Module

    I have a 2007 Yukon with a faulty suspension module. This is the module that is located above the spare tire and controls the compressor for the air ride. I have removed it and have been dealing with the Service Suspension error message, but would like to get it fixed. Here is a picture...
  7. K

    Suspension Module

    I've checked a couple of local yards, but no luck. Does anyone know if these need to be flashed or programmed for the vehicle? I was hoping someone could point me to a yard in the US that I may have better luck. I never thought of ebay.
  8. K

    Suspension Module

    I have a 2007 Yukon with a faulty suspension module. This is the module that is located above the spare tire and controls the compressor for the air ride. I have removed it and have been dealing with the Service Suspension error message, but would like to get it fixed. Here is a picture...
  9. K

    Electrical Gremlin

    I want to update that I found the problem. It ended up being the suspension control module located above the spare tire. It must be a bad short within the module. I did try everything that was recommended and went through all connections 1 by 1. This module is very expensive. To the tune of...
  10. K

    Electrical Gremlin

    Thank you. I'm going to try that and go through the harness from end to end to ensure nothing is loose.
  11. K

    Electrical Gremlin

    Thank you. How many different modules are there and where are they located. The only one that I have located is the one under the dash left of the steering wheel. I removed and reseated that plug. I removed and reseated the one at the TCM, but not the ECM. Its a pretty strange problem and I...
  12. K

    Electrical Gremlin

    Thank you. What is the Big 3 upgrade? I cleaned the contacts on the grounds under the hood.
  13. K

    Electrical Gremlin

    Need some help. My 07 Yukon has multiple warning lights and warning messages. It has intermittent gauges and it seems to be even effecting the rear suspension compressor. I was able to pull some codes last night which were pointing to loss of connection to the TCM, but tonight it won't even...

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