NHTSA Complaint #11661182 — 2024 GMC SIERRA 1500
ENGINE issue reported to NHTSA
Complaint Details
| ODI Number | 11661182 |
| Vehicle | 2024 GMC SIERRA 1500 |
| Component | ENGINE |
| Date of Incident | |
| Date Filed | |
| Mileage | N/A miles |
| Crash | No |
| Fire | No |
| Injuries | 0 |
| Deaths | 0 |
| Vehicle Towed | No |
| State | TX |
Consumer Description
starting in June of 2024 at 6500 miles my truck started exhibiting loud exhaust drones and severe vibrations coming through the dash, floorboard and steering column on excelleration. The truck has been in repair 7 times in the past 11 months and multiple parts have been changed. I learned that there are thousands of General Motors 1500 trucks equipped with the 3.0 LZ0 Duramax diesel engine exhibiting the same symptoms. A General Motors Field Engineer found Broken exhaust bracket studs at the engine block caused by exhaust alignment and engine/transmission mount stress from worn components. These trucks are coming from the factory this way and continues with 2025 model year. My son owns a 2025 GMC AT4X 3.0 LZO and has the exact same symptoms.
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