This service bulletin advises the technician on what to do if the DEF pump has been replaced and perform a...
Chevrolet technical service bulletin 20NA110 for 2017-2021 Chevrolet Silverado 1500, 2021 Chevrolet Tahoe and 2018-2019 Chevrolet Equinox and others.
- Bulletin number
- 20NA110
- Component
- Fuel system, gasoline
- Summary
- This service bulletin advises the technician on what to do if the DEF pump has been replaced and perform a leak test to prime the pump.
Vehicles covered
- Chevrolet Silverado 1500 2017-2021 20172018201920202021
- Chevrolet Tahoe 2021 2021
- Chevrolet Equinox 2018-2019 20182019
- GMC Sierra 1500 2020-2021 20202021
- GMC Yukon 2021 2021
- Chevrolet Silverado 2500 2017-2021 20172018201920202021
- Chevrolet Cruze 2017-2019 201720182019
- Chevrolet Colorado 2016-2021 201620172018201920202021
- GMC Terrain 2017-2020 2017201820192020
- GMC Yukon XL 2021 2021
- GMC Sierra 2500 2017-2021 20172018201920202021
- GMC Canyon 2016-2021 201620172018201920202021
- Chevrolet Express 2017-2021 20172018201920202021
- Cadillac Escalade ESV 2021 2021
- GMC Savana 2017-2021 20172018201920202021
- GMC Sierra Denali 2017-2019 201720182019
- Cadillac Escalade Na 2021 2021
- Chevrolet 5500HD 2021 2021
- Chevrolet Silverado 4500 2019-2021 201920202021
- Chevrolet 4500HD 2021 2021
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