# Service bulletin 01298

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: 602676
- Published by NHTSA: 1999\-01\-06
- Manufacturer's number: 01298
- Manufacturer's date: 1998\-11\-04
- Replaces: F00296
- NHTSA component: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM

## NHTSA's summary

EXPERIENCING A BUZZING OR RATTLING NOISE MAY BE HEARD COMING FROM THE EXHAUST SYSTEM DURING NORMAL DRIVING CONDITIONS OR AT IDLE. \*YC

## 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, Exhaust and emissions

## Vehicles listed

- 1994 to 1999 MAZDA B\-SERIES TRUCK
- 1991 to 1994 MAZDA NAVAJO

## Recalls for the same vehicles and component

- [1999091](/recalls/tc/1999091.md), 1999-05-18: Engine
- [1996008](/recalls/tc/1996008.md), 1996-01-10: Engine

## Other bulletins for the same vehicles and component

- [01\-006\-21\-3779a](/bulletins/10200933.md), 2021-09-03, Service bulletin: ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ENGINE AND ENGINE COOLING. This service bulletin provides testing and charging procedures in order to promote proper battery maintenance, to deliver new vehicles with fully charged batteries, and to reduce unnecessary battery replacement cost. For new vehicles in stock at the dealer, inspect and maintain the battery periodically according to the repair procedure.
- [00\-003\-19\-3583](/bulletins/10154879.md), 2019-03-21, Service bulletin: FUEL SYSTEM, DIESEL:STORAGE:TANK ASSEMBLY; FUEL SYSTEM, GASOLINE; ENGINE AND ENGINE COOLING; EQUIPMENT. In support of the new MRT distribution, Mazda will ship to dealers a new Dual Purpose Diagnostic Leak Detector beginning March, 2019. Training videos will be posted to MGSS shortly and Workshop Manual procedures will be revised gradually.
- [01\-004\-19\-3558](/bulletins/10153311.md), 2019-02-19, Service bulletin: ENGINE AND ENGINE COOLING. On some vehicles, a sulfur smell or 'rotten egg' odor may be noticed coming from the exhaust system. The odor is usually noticed after a cold start, fast idle, extended periods of idling and full throttle acceleration. Sulfur smell is not an indication of an engine concern and will not cause reduced driveability or durability of the engine or any of its emission components. The sulfur smell or 'rotten egg' odor is caused by high amounts of sulfur in the gasoline being used in the vehicle. Sulfur is normally eliminated during the refining process, but the EPA regulation of sulfur in gasoline differs from state to state. Vehicles using fuel containing high amounts of sulfur will most likely emit sulfur smell from the exhaust system.When high sulfur fuel is burned, there is a chemical reaction in the catalytic converter causing the sulfur tooxidize. As the vehicle is driven, the oxidizing reaction odor in the converter will decrease with mileage and age.
- [01\-016\-18\-3522](/bulletins/10145242.md), 2018-10-09, Service bulletin: ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. On some vehicles, a sulfur smell or 'rotten egg' odor may be noticed coming from the exhaust system. The odor is usually noticed after a cold start, fast idle, extended periods of idling and full throttle acceleration. Sulfur smell is not an indication of an engine concern and will not cause reduced driveability or durability of the engine or any of its emission components. The sulfur smell or 'rotten egg' odor is caused by high amounts of sulfur in the gasoline being used in the vehicle. Sulfur is normally eliminated during the refining process, but the EPA regulation of sulfur in gasoline differs from state to state. Vehicles using fuel containing high amounts of sulfur will most likely emit sulfur smell from the exhaust system. When high sulfur fuel is burned, there is a chemical reaction in the catalytic converter causing the sulfur to oxidize. As the vehicle is driven, the oxidizing reaction odor in the converter will decrease with mileage and age.
- [00\-004/12](/bulletins/10059870.md), 2016-03-16, Service bulletin: EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL; EQUIPMENT; ENGINE. SUMMARY TO BE PROVIDED ON A FUTURE DATE.
- [0102603](/bulletins/10005221.md), 2004-02-14, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. SPARK KNOCK / PING / DETONATION NOISE DURING ACCELERATION. THIS BULLETIN ALSO REPLACES 01\-017/00. \*TT
- [0101503](/bulletins/10002353.md), 2003-08-23, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL LEAK A PAN AFTER GASKET REPLACEMENT. \*TT
- [0101802](/bulletins/635027.md), 2002-10-16, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. ENGINE OIL LEAK AT PAN AFTER GASKET REPLACEMENT. \*TT
- [0100302](/bulletins/634322.md), 2002-09-28, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING RECOMMENDED ENGINE OIL. \*SLC
- [01700](/bulletins/615642.md), 2001-01-26, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SOME VEHICLES MAY EXHIBIT A SPARK KNOCK SOUND OR PING TYPE NOISE DURING ACCELERATION. \*TT

JSON: [/v1/bulletins/602676](/v1/bulletins/602676)

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