A/T Throttle Valve System - Condition Summary/Diagnosis: Overview

Number: 87-55

Section: 7A

Date: JAN., 1987
Subject: SUMMARY OF THROTTLE VALVE (T.V.) SYSTEM-RELATED CONDITIONS AND DIAGNOSIS


Model and Year: ALL HYDRAMATIC BUILT THROTTLE VALVE CONTROLLED TRANSMISSIONS/TRANSAXLES (EXCEPT THM 180, THM 350, THM 400)

TO: ALL CHEVROLET DEALERS


This bulletin covers background and diagnosis information on the Throttle Valve (T.V.) system and applies to all THM transaxles/transmissions, except the THM 180, 350, and 400 models. Included are revised procedures using a pressure gage during adjustment/diagnosis, inspection of components and other items not yet covered in the Service Manual.