Sebring V6-2.5L SOHC 24 Valve (1996)
Technical Service Bulletin # 18-17-98
Date: 980410
PCM - Excessive Crank Time/Start Die Out/Weak Run Up
NO: 18-17-98
GROUP: Vehicle Performance
DATE: Apr. 10, 1998
SUBJECT:
Excessive Cold Crank Time, Start Die Out Or Weak Run Up, Sags/Stumble/Hesitation After A Cold Start
MODELS:
1996 (FJ) Avenger/Sebring
1996 (JA) Cirrus/Stratus/Breeze
1996 (JX) Sebring Convertible
NOTE:
THIS INFORMATION APPLIES TO VEHICLES EQUIPPED WITH A 2.5L ENGINE.
SYMPTOM/CONDITION:
The following 2 items apply to FJ/JA/JX models:
1.
Excessive cold crank time (excess of 30 seconds) followed by a very rough idle or excessive cold crank time with a no start condition. This may be
caused by no/low compression due to loose carbon holding valves open. Performing a clear flood procedure (WOT Start) will allow the vehicle to
start. This condition typically follows a cold start with an engine run time of less than 60 seconds. An example of this would be pulling the vehicle
from a garage to the driveway and turning the engine off. The subsequent start may experience the condition.
2.
Sags, stumble, or hesitation after a cold start in ambient temperatures of 4 to 32 C (40 to 90 F). This condition may persist for up to a minute into a
drive cycle and is attributed to high driveability index (DI) fuel.
The following 1 item applies to JA/JX models:
1.
Die out or very weak run up during partial cool downs or hot starts. This may be experienced with coolant temperatures between 65 to 82 C (150
to 180 F).
DIAGNOSIS:
Using the Mopar Diagnostic System (MDS) or the Diagnostic Scan Tool (DRB III(R) with the appropriate Diagnostic Procedures Manual, verify all
engine/transmission systems are functioning as designed. If Diagnostic Trouble Codes (DTC's) are present, record them on the repair order and repair as
necessary before proceeding further with this bulletin. If no DTC's are present and any of the symptoms have been experienced, perform the Repair
Procedure.
NOTE:
WHENEVER A POWERTRAIN CONTROL MODULE (PCM) IS REPLACED DUE TO FAILURE, THE SOFTWARE OF THE
REPLACEMENT CONTROLLER SHOULD BE VERIFIED FOR THE LATEST REVISION LEVEL. USE THE FLASH PROCEDURE TO
UPDATE REPLACED CONTROLLERS AS NECESSARY.
EQUIPMENT/PARTS REQUIRED:
1
CH6000
Scan Tool (DRB III(R))
1
CH7035
General Purpose Interface Bus Cable (GPIB)
1
CH7000/7001
J1962 Cable
1
CH7010
J1962 MMC Cable
1
04669020
Label - Authorized Software Update
1
04275086
Label - Authorized Modification
1
04671336
Switch, Brake (JA/JX Only)
NOTE:
THE MDS AND DRB III(R) ARE REQUIRED TO PERFORM THIS REPAIR AND THE SYSTEM MUST BE OPERATING WITH RELEASE
21 OR HIGHER AND TIL CD RELEASE 1156 OR HIGHER MUST BE INSTALLED.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
