Electra Park Avenue V6-231 3.8L VIN C SFI (1989)
PROM - Programmable Read Only Memory: Customer Interest
Engine - Cold Start Stall and/or Chuggle
Bulletin: 91-6E-21
Date: August 91
Ref. No.: 91-200-6E
Corp. Ref. No.: 106503R
SUBJECT:
COLD START STALL AND/OR CHUGGLE AT 35-45 MPH WITH TORQUE CONVERTER CLUTCH ENGAGED (REVISED
CALIBRATION MEM-CAL)
MODELS AFFECTED: 1989-91 PARK AVENUE/ULTRA AND LESABRE MODELS WITH 3800 (CODE C) ENGINES ONLY
Some owners of 1989 through 1990 Park Avenue/Ultra and 1989-1991 LeSabre models equipped with the 3800 (Code C) engine may experience one or
both of the following conditions:
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Engine does not stay running on initial cold start.
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Chuggle at 35-45 mph with torque converter clutch engaged.
The two conditions are independent of each other, yet it may be possible for both conditions to exist on one vehicle.
Follow the information outlined under the individual heading for that condition:
ENGINE DOES NOT STAY RUNNING ON INITIAL COLD START
If the vehicle's basic engine controls and fuel systems are operating properly, it is important for the technician to be familiarized with information
contained in Service Bulletin 91-6E-3, "Recommended fuels for non-turbo port fuel injection engines". If the condition cannot be repaired by changing
fuel or using currently published service and diagnostic procedures, it may be necessary to install a revised calibration MEM-CAL. Install MEM-CALS
listed in Table A for this condition only.
