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Suburban Transmission - Diagnostic Codes

Last post on Feb 21, 2009 at 3:09 PM
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The following codes were scanned on my 2004 Suburban Z71 - P0741, P0705 and P2761. The dealership said these are electrical issues with the transmission. The transmission is not getting the power supply needed, however, they are clueless on how to fix the problem. The best way to explain this issue is that it does not occur everyday. At times (about half) I do not have first gear or overdrive. After starting the vehicle and put it in Drive it will be in 3rd gear. I can manually shift to second (with a clank), but can not shift to first. If I do, it stays in second. Also, at times the check engine light comes on, but not everytime. Other times the vehicle runs smoothly with no troubles. I will have every gear in Drive. Of course when I took it to the dealership, they could not get it to act up. The truck ran smoothly. I even allowed the technician to drive it home for the night. They did state that they tested for a short, inspected the related connection and it could possibly be due to battery voltage being pulled low on circuit 642. They performed road tests several times and are unable to verify at this time. Any ideas on what needs to be fixed or replaced? |
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