# Service bulletin TSBENG174

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: 10123329
- Published by NHTSA: 2017\-11\-14
- Manufacturer's number: TSBENG174
- Manufacturer's date: 2017\-10\-16
- NHTSA component: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

## NHTSA's summary

TSB \- SERVICE ACTION: AIR INTAKE HOSE REPLACEMENT \& ECU UPGRADE \(SA303\) \- This bulletin provides the procedure to replace the air intake hose and/or improve the logic of the Electronic Control Unit \(ECU\) on some 2016\-2017MY Optima \(JFa\), produced from September 4, 2015 through April 14, 2017, and some 2016\-2017MY Sorento \(UMa\) vehicles, produced from November 19, 2014 through May 1, 2017, equipped with a 2.0T engine, which may exhibit an impaired air intake hose.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10123329-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10123329-0001.pdf)

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

## Components

Fuel system, Fuel hoses and lines

## Vehicles listed

- 2016 to 2017 KIA OPTIMA
- 2016 to 2017 KIA SORENTO

## Recalls for the same vehicles and component

- [18V907000](/recalls/nhtsa/18V907000.md), 2018-12-19: ENGINE; FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS

JSON: [/v1/bulletins/10123329](/v1/bulletins/10123329)

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