# Service bulletin TSB170025\-030320

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: 10110312
- Published by NHTSA: 2017\-08\-04
- Manufacturer's number: TSB170025\-030320
- Manufacturer's date: 2017\-03\-03
- NHTSA component: FUEL SYSTEM, OTHER; EQUIPMENT

## NHTSA's summary

This Technical Service Bulletin describes the reasoning for inconsistent and vague natural gas fuel pressure readings in INSITE Electronic Service Tool which are leading to unnecessary replacement of fuel system components. The technical service bulletin identifies steps required to verify consistent INSITE readings.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2017/MC-10110312-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2017/MC-10110312-0001.pdf)

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

## Components

Equipment and accessories, Fuel system

## Vehicles listed

- CUMMINS ISB6.7G
- CUMMINS ISL G
- CUMMINS ISX12 G

JSON: [/v1/bulletins/10110312](/v1/bulletins/10110312)

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