This informational bulletin advises the technician to check for a possible stuck oil pressure relief valve.
Chevrolet technical service bulletin 20NA161 for 2019 Chevrolet Suburban, 2019 Chevrolet Silverado 2500 and 2019 GMC Sierra 2500 and others.
- Bulletin number
- 20NA161
- Component
- Engine and engine cooling
- Summary
- This informational bulletin advises the technician to check for a possible stuck oil pressure relief valve.
Owners of these vehicles have filed 61 complaints in the engine category.
Vehicles covered
- Chevrolet Suburban 2019 2019
- Chevrolet Silverado 2500 2019 2019
- GMC Sierra 2500 2019 2019
- Chevrolet Express 2019-2020 20192020
- GMC Savana 2019-2020 20192020
- Chevrolet 3500 2019 2019
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