Cimarron L4-121 2.0L (1984)
Technical Service Bulletin # 84P16
Date: 841101
Campaign - Cold Startability
NO.: 84-P-1
DATE:
November, 1984
GROUP:
6
SUBJECT:
Special Policy - Cold Startability Adjustment
MODEL:
1983-1984 Cadillac Cimarron Models Equipped with 2.0L Engine (VIN Code P), Automatic Transmission and Federal Emission Systems
Some 1983-1984 Cadillac Cimarron models equipped with 2.0 liter engines, automatic transmissions and Federal Emission Systems may experience no
starts, poor cold start, and spark plug fouling. These starting conditions may be encountered at temperatures below -10~F (-23~).
SPECIAL POLICY ADJUSTMENT
There are no time or mileage provisions relating to the subject vehicles; however, this special policy adjustment offer will expire June 30, 1985.
Special Policy Adjustment Bulletins should be filed in the three ring binder furnished to the dealer by General Motors in September, 1982.
OWNER NOTIFICATION
Owners of vehicles registered in certain northern states will be notified of this Special Policy by Cadillac Motor Car Division. However, all subject
vehicles are covered by this policy regardless of where they are registered or operated.
Service Procedure & Parts Information
The following procedure will provide a significant improvement in cold startability of these vehicles.
1.
Install a new calibration PROM per the following:
A.
On 1983 models use P/N 1226989, PROM.
INSTALL (NEXT TO PRODUCTION LABEL) SUPPLEMENTARY TUNE-UP LABEL P/N 14086563 FOUND IN PROM PACKAGE.
B.
On 1984 models with base axle (3.18) use P/N 16047644, PROM. (Refer to service parts Identification Label).
C.
On 1984 models with FW9 (3.43) axle use P/N 16047649, PROM. (Refer to service parts Identification Label).
2.
On 1983 models set ignition timing at 6~ BTDC from 0~ TDC. On 1984 models timing should be checked to assure 6~ BTDC.
THE TIMING CONNECTOR MAY BE LEFT DISCONNECTED FOR THE NEXT STEP.
3.
Install spark bypass relay kit, P/N 14086983 (1983-1984). Detailed instructions are included in the kit package. Reconnect the timing connector
from Step 2.
4.
Remove and discard the fuse labeled "crank" from the fuse block 2 position (3 amp fuse) (1983-1984).
5.
Install new spark plugs, P/N 5614009 (1983-1984).
6.
Install starting procedure label, P/N 14085150, on the headliner so it is covered by the driver's sun visor. The label is required on all 1983 models,
and on early production 1984 models (installed in production Mid - 1984).
OWNERS OF CIMARRON VEHICLES SHOULD BE ADVISED THAT COLD WEATHER STARTING PERFORMANCE IS ALSO DEPENDENT
ON THE USE OF 5W-30 SF MOTOR OIL AS SPECIFIED IN THE OWNER'S MANUAL.
PARTS INFORMATION
Parts required to complete this Special Policy should be obtained from the Parts Distribution Centers of the General Motors Warehousing and
Distribution Division. The following parts are to be used:
Description
Usage
Part Number
PROM
1983
1226989
PROM
1984 w/3.18 Axle
16047644
PROM
1984 w/3.43 Axle
16047649
