# Service bulletin 2008FA\-5

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: 10026741
- Published by NHTSA: 2008\-12\-11
- Manufacturer's number: 2008FA\-5
- Manufacturer's date: 2008\-09\-01
- NHTSA component: POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE \(TCM/PCM/TECM\); POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER

## NHTSA's summary

ALLISON TRANSMISSION SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. IN SOME 24 VOLT 4TH GEN CALIBRATIONS THE MAIN MODULATION SOLENOID MAY NOT ACTIVATE PROPERLY AT IDLE; WHICH REDUCES COOLER FLOW AT IDLE. CSC LETTER WAS RECEIVED. \*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

Transmission and driveline, Automatic transmission, Torque converter, Transmission control module

## Vehicles listed

- ALLISON 1000 SERIES TRANSMISSION
- ALLISON 2000 SERIES TRANSMISSION
- ALLISON TRANSMISSION

JSON: [/v1/bulletins/10026741](/v1/bulletins/10026741)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%202008FA-5&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10026741&vehicle=Service%20bulletin%202008FA-5)