Engine - Extended Crank Cold, Starts After Key is Cycled

90buick03

Bulletin 90-6E-8

Date Feb. '90

Ref. No. 90-061-6E

Corp. Ref. No. 906508R


SUBJECT: COLD ENGINE EXTENDED CRANK, BUT IF THE IGNITION KEY IS CYCLED, THE ENGINE WILL START.

MODELS AFFECTED: SOME 1989 AND EARLY BUILT 1990 BUICK LESABRES, ELECTRAS, RIVIERAS AND REATTAS EQUIPPED WITH THE 3800 ENGINE (VIN CODE C)

Some 1989 through early built 1990 LeSabres, Electras, Rivieras and Reattas equipped with the 3800 engine (VIN Code C), may exhibit a condition of a cold engine extended crank, but if the ignition key is cycled, the engine will start.

If this condition is experienced on a vehicle with good fuel pressure and the basic engine controls and systems are performing properly, it may be necessary to install a new service Mem-Cal with a recalibrated fuel multiplier ratio during cranking.

Service Mem-Cals are currently available from GMSPO.

IMPORTANT: The new calibration Mem-Cals are curtently being used in production. Verify if this Mem-Cal is already installed by the Scanner I.D.

Axle Option *Scanner Mem-Cal
Code Located I.D. If this Service
Model Axle on Service Mem-Cal is Part
Year Application Ratio Pts.I.D. Label Installed Number

89/90 FED LeSab./Elec 2.84 F17 8094 16148060
89/90 CAL LeSab./Elec 2.84 F17 7994 16148005
89/90 FED LeSab./Elec. 2.97 F79 8004 16148006
89/90 CAL LeSab./Elec. 2.97 F79 8014 16148007
89 FED Riv. 2.84 F17 1074 16141292
89 CAL Riv. 2.84 F17 1084 16141296
89 FED Riv./Reatta 2.97 F79 1094 16141300
89 CAL Riv./Reatta 2.97 F79 1104 16141305
90 FED Riv. 2.97 F79 8084 16148016
90 CAL Riv. 2.97 F79 7984 16148003
90 FED Reatta 2.97 F79 8064 16148013
90 CAL Reatta 2.97 F79 8074 16148015
WARRANTY INFORMATION

Labor Operation Number: T5191
Labor Time: .5 Hours
Trouble Code: 92