# Service bulletin TSB200040\-022620

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: 10172458
- Published by NHTSA: 2020\-03\-16
- Manufacturer's number: TSB200040\-022620
- Manufacturer's date: 2020\-02\-26
- NHTSA component: FUEL SYSTEM, GASOLINE:DELIVERY:HOSES, LINES/PIPING, AND FITTINGS; EQUIPMENT ADAPTIVE/MOBILITY

## NHTSA's summary

This Technical Service Bulletin describes the verification and resolution of a crank but not start or hard start condition. The liquid propane \(LP\) hoses carrying LP to and from the regulator can crack and deteriorate over time due to age and environmental stress. The cracked hoses pull in excess air, resulting in a lean fuel mixture.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172458-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10172458-9999.pdf)

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

## Components

Equipment and accessories, Fuel system, Fuel hoses and lines

## Vehicles listed

- CUMMINS CUMMINS

JSON: [/v1/bulletins/10172458](/v1/bulletins/10172458)

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