# Service bulletin TSB180102\-081020

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: 10144404
- Published by NHTSA: 2018\-09\-17
- Manufacturer's number: TSB180102\-081020
- Manufacturer's date: 2018\-08\-10
- NHTSA component: ENGINE AND ENGINE COOLING

## NHTSA's summary

This Technical Service Bulleting describes the verification and resolution of heavy carbon deposit/sludge build up causing damage to the engine block. Engine failure most likely due to light load operation for an extended period of time.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2018/MC-10144404-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2018/MC-10144404-0001.pdf)

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

## Components

Engine

## Vehicles listed

- 1991 CUMMINS DIESEL ENGINE

JSON: [/v1/bulletins/10144404](/v1/bulletins/10144404)

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