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Professional Automotive Repair Technical Discussions for January 9, 2026 International Automotive Technicians' Network (iATN) - Members Only |
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| (Also Available: All, Asian, Chrysler, European, Ford, GM.) | ||
| Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder. | ||
Open Help Requests for GM
| Help Request | Answers | |
| 2016 Chevrolet Silverado 1500 LTZ 5.3L Transmission VIN: 1GCVKSEC9G Customer complaint of harsh shifts. Has a P0842 Transmission fluid pressure switch 1 circuit low voltage, and a P0872 Transmission fluid pressure switch 3 circuit low voltage. Looking at scanner data, these pressure switches never switch which is the issue... |
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| 2016 Chevrolet Silverado 1500 LTZ 5.3L Transmission VIN: 1GCVKSEC9G Customer complaint of harsh shifts. Has a P0842 Transmission fluid pressure switch 1 circuit low voltage, and a P0872 Transmission fluid pressure switch 3 circuit low voltage. Looking at scanner data, these pressure switches never switch which is the issue... |
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Fixes & Summaries for GM
| Fix/Summary | Answers | |
| 2011 Chevrolet Silverado 1500 LS 4.8L 4L60E Transmission VIN: 3GCPCREA0B Replies confirmed my belief that the issue is internal. Referring the owner to either contact the rebuilder (5 hours away...) or engage me to rebuild it properly or replace it. I am not going to touch it further due to the possibility of voiding the warranty... |
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| 2002 GMC Savana 2500 5.7L Relay id VIN: 1GTGG25RX2 SINCE WE COULD NOT FIND ANYTHING THAT DID NOT WORK, WE JUST LEFT THE RELAY OUT TO ELIMANATE THE DRAIN. WE ASKED THE CUSTOMER TO LET US KNOW IF HE NOTICES SOMETHING NOT WORKING. FUSE 3 POWERED THE RELAY, WHICH WAS FOR THE INTERIOR COURTSEY LIGHTS, AND THE WIRIN... |
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