# Service bulletin 32A003A

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: 46414
- Published by NHTSA: 1996\-04\-25
- Manufacturer's number: 32A003A
- Manufacturer's date: 1995\-10\-01
- Replaces: 32A003
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE

## NHTSA's summary

\(SUPERSEDES ANY PREVIOSLY DATED SERVICE BULLETIN NUMBER 32A003\). THE FOLLOWING INFORMATION PROVIDES PROCEDURES FOR CHECKING CYLINDER HEADS AND CYLINDER BLOCKS FOR INTERNAL OIL AND/OR WATER LEAKAGE, AND ALSO FOR HEAD GASKET LEAKS. SUSPECTED LEAK PROBLEMS SHOULD BE VERIFIED BY POSITIVE EVIDENCE, OR BY PRESSURE TESTING, BEFORE DECIDING THAT A CYLINDER HEAD OR BLOCK SHOULD BE REPLACED. MAGNAFLUX INSPECTIONS ALONE SHOULD NOT BE USED REPLACEMENT CRITERIA.

## 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

## Vehicles listed

- MACK MACK

JSON: [/v1/bulletins/46414](/v1/bulletins/46414)

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