# Service bulletin 99021

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: 606301
- Published by NHTSA: 1999\-08\-16
- Manufacturer's number: 99021
- Manufacturer's date: 1999\-06\-07
- NHTSA component: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE

## NHTSA's summary

CONDITIONS CONCERNING ENGINE PINGING WHEN YOU ACCELERATE LIGHTLY BELOW 3,000 RPM. \*TT

## 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

- 1996 to 1997 ACURA SLX

## Other bulletins for the same vehicles and component

- [Service Bulletin](/bulletins/10115224.md), 2017-08-15, Service bulletin: ELECTRICAL SYSTEM:IGNITION; ENGINE AND ENGINE COOLING. Service bulletin \- The engine detonates \(pings\) when you accelerate lightly below 3,000 rpm. The programmed ignition timing causes a non\-damaging engine detonation to occur when the intake air temperature is above 140°F \(60°C\).
- [402](/bulletins/637932.md), 2002-12-09, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE:GASOLINE. SUBJECT REGARDING REPLACEMENT TOP PISTON RING MARKING. \*TT
- [010702](/bulletins/636801.md), 2002-11-14, Service bulletin: ENGINE AND ENGINE COOLING:ENGINE. THIS ARTICLE MENTIONS THERE IS NO T ON REPLACEMENT TOP PISTON RINGS. \*TT

JSON: [/v1/bulletins/606301](/v1/bulletins/606301)

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