P129D Diagnostic Trouble Code Discussion for September 2024
pressure sensor implausible
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| Help Request | Posted | |
| 2018 GMC Yukon XL Denali 6.2L No Start VIN: 1GKS1HKJ3J P129D: Ecm. This Yukon doesn't engage the starter, and won't start. This seems to happen only after quite a long drive at least an hour or more. After sitting maybe 10 minutes or maybe an hour it restarts and goes just fine.I have been trying to simulate the issue, bu... |
September 23, 2024 |
