# Service bulletin 20NA031

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

- Type: Service bulletin
- NHTSA id: 10172787
- Published by NHTSA: 2020\-03\-30
- Manufacturer's number: 20NA031
- Manufacturer's date: 2020\-02\-14
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:BELTS AND ASSOCIATED PULLEYS; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS

## NHTSA's summary

This informational bulletin advises the tech to replace the engine drive belt if after replacing the injectors, one of the codes returns.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172787-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172787-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine, Fuel system, Drive belts, Fuel injection

## Vehicles listed

- 2018 CHEVROLET COLORADO
- 2018 GMC CANYON

## Other bulletins for the same vehicles and component

- [04\-06\-04\-051F](/bulletins/10209734.md), 2022-04-05, Service bulletin: FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; EQUIPMENT:MECHANICAL. This service bulletin provides information for maintenance cleaning of the fuel injectors and gasoline detergent additive.
- [16NA017](/bulletins/10183123.md), 2020-11-30, Service bulletin: ENGINE; EQUIPMENT ADAPTIVE/MOBILITY; FUEL SYSTEM, DIESEL:FUEL INJECTION SYSTEM:INJECTORS. This informational bulletin provides information ticking noise and/or noise when turning vehicle off.
- [20NA098](/bulletins/10176632.md), 2020-06-22, Service bulletin: ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. This informational bulletin explains to the tech on how to order a new fuel injector by matching the part number on the part and ordering it from the EPC.
- [16NA383](/bulletins/10176607.md), 2020-06-22, Service bulletin: ENGINE; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM; EQUIPMENT ADAPTIVE/MOBILITY. This technical bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build\-up.
- [16NA383](/bulletins/10171878.md), 2020-03-02, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM. This informational bulletin advises of a new fuel injection cleaner kit used for decarbonizing the intake valves to correct conditions of rough idle, Crank no start, extended crank or misfire, MIL with DTCs, and explains how Top Tier fuels should be used to reduce carbon build\-up.
- [16\-NA\-383](/bulletins/10137635.md), 2018-05-21, Service bulletin: EQUIPMENT; FUEL SYSTEM, GASOLINE:FUEL INJECTION SYSTEM:INJECTORS. This informational bulletin advises of a new fuel injection kit used for decarbonizing the intake valves, and explains how toptier fuels should be used to reduce carbon build up.

JSON: [/v1/bulletins/10172787](/v1/bulletins/10172787)

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