Engine - Chuggle Between Speeds of 28 - 37 MPH

91oldsmobile01

NUMBER: 90-T-194


CORP.REF.NO: 076503


DATE: January 1991


SECTION: 6E3


SUBJECT CHUGGLE AT LOW SPEED (28-37 MPH)/INACCURATE DRIVER INFO SYSTEM MILEAGE-NEW MEM-CAL


MODELS/YEARS 89-90 CUTLASS CALAIS W/2.3L (VIN N) ENGINE AND 3T40 TRANSAXLE


If concerns about chuggle between speeds of 28 - 37 mph are received and thorough diagnosis of the engine control system does not resolve the concern, you may need to install a revised Mem-Cal.


A condition of inaccurate fuel economy, on vehicles equipped with the Driver Information System (DIS) option may also be corrected by the installation of one of these Mem-Cals.

PARTS INFORMATION:


Part Scan Broadcast
Model Transaxle Emissions Number I.D. Code

1989 Auto Federal 16156388 6353 AWNB
1989 Auto California 16156393 6363 AWNC

1990 Auto Federal 16156310 5993 AWLU
1990 Auto California 16156315 6003 AWLW

These Mem-Cals raise the TCC engagement speed to 37 mph and reduce the throttle position, crowd release of TCC. However, vehicle fuel economy may be affected. Be sure to advise the owner of this.


NOTICE: This Mem-Cal is intended to be used on a as needed basis. The part number will be in GMSPO but as a field fix only. This will not be published in the GMSPO catalog.

Parts are currently available from GMSPO.

WARRANTY INFORMATION:

Labor Operation Number: T0500

Labor Time: 0.4 hour

Trouble Code: 92