# Service bulletin SB\-214020

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: 10032353
- Published by NHTSA: 2010\-03\-11
- Manufacturer's number: SB\-214020
- Manufacturer's date: 2008\-01\-30
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:OTHER FUEL TYPES:TURBO/SUPERCHARGER; ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER

## NHTSA's summary

MACK TRUCK: ACTIONS REQUIRED TO AVOID REPEAT TURBOCHARGER FAILURES. WHEN REPLACING A FAILED TURBOCHARGER, IT IS EXTREMELY IMPORTANT THAT THE FOLLOWING ACTIONS BE PERFORMED TO AVOID A REPEAT FAILURE: CLEAN OIL THAT ACCUMULATED IN INLET MANIFOLD AND CHARGE AIR COOLER; CLEAN TURBOCHARGER FAILURE DEBRIS FROM AIR CLEANER AND INLET AIR DUCTS; CLEAN DEBRIS FROM EXHAUST MANIFOLD \( AND EGR COOLER\); INSPECT AND CLEAN TURBOCHARGER OIL SUPPLY LINE AND OIL DRAIN TUBE; REPLACE TURBOCHARGER MOUNTING FLANGE GASKET, OIL DRAIN TUBE GASKET\(S\) OR O RING \(AS APPLICABLE\) AND TURBOCHARGER MOUNTING STUDS AND NUTS; CHANGE ENGINE OIL AND FILTERS; PRE LUBE THE REPLACEMENT TURBOCHARGER; ON ASET AC ENGINES, DISCONNECT VTG CONTROL VALVE CONNECTOR PRIOR TO STARTING ENGINE; PERFORM ENGINE START AND RUN IN PROCEDURES DESCRIBED IN BULLETIN. NO MODEL OR MODEL YEARS LISTED. \*PE

## The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

## Components

Engine, Turbocharger or supercharger

## Vehicles listed

- MACK MACK

JSON: [/v1/bulletins/10032353](/v1/bulletins/10032353)

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