Riviera V6-231 3.8L VIN C SFI (1989)
3514
3553
ANCU
16123486
Oldsmobile 39-9
Incorrect MPG display.
Buick 88-6E-23
3524
3556
ANCW
16123487
Oldsmobile 39-9
Incorrect MPG display.
Buick 88-6E-23
3534
3559
ANCX
16123488
Buick 88-6E-23
Incorrect MPG display.
3584
2766
ALAP
16122765
5614
5849
AYLA
16165848
Pontiac 91-6-49
Engine does not stay running on initial cold start.
Buick 91-6E-21A
Oldsmobile 91-T-185A
5624
5844
AYLB
16165843
Pontiac 91-6-49
Engine does not stay running on initial cold start and chuggle
Buick 91-6E-21A
at 35-45 MPH with TCC engaged.
Oldsmobile 91-T-185A
5634
5840
AYLC
16165839
Pontiac 91-6-49
Engine does not stay running on initial cold start.
Buick 91-6E-21A
Oldsmobile 91-T-185A
5644
5830
AYLD
16165829
Pontiac 91-6-49
See Footnote 336
Buick 91-6E-21A
Oldsmobile 91-T-185A
5654
5836
AYLF
16165834
Pontiac 91-6-49
Engine does not stay running on initial cold start.
5704
5945
ANMX
16125944
8094
16148060
5714
5950
ANMY
16125949
7994
16148005
5724
5955
ANMZ
16125954
8004
16148006
5734
5972
ANNA
16125970
8014
16148007
5744
5982
ANNB
16125980
5634
16165839
5754
5986
ANNC
16125985
5634
16165839
5764
5990
ANND
16125989
1074
16141292
5774
5995
ANNF
16125994
1084
16141296
5784
5999
ANNH
16125998
1094
16141300
5794
6004
ANNJ
16126003
1104
16141305
7104
1306
ASSW
16141305
Buick 90-6E-8
See Footnote 335
Oldsmobile 90-T-77
Oldsmobile DCS 90-C
7984
8286
ATXX
16148003
Buick 90-6E-8
Cold engine extended crank.
7994
8289
ATXY
16148005
Pontiac 90-6-14
See Footnote 337
Buick 90-6E-8
Oldsmobile 90-T-77
Oldsmobile DCS 90-C
8004
8292
ATXZ
16148006
Pontiac 90-6-14
See Footnote 338
Buick 90-6E-8
Oldsmobile 90-T-77