Cirrus V6-2.5L VIN H (1995)
Technical Service Bulletin # 18-26-98
Date: 980221
PCM - Hard Start/No Start/Hesitation/Sag/Stumble
NO: 18-26-98
GROUP: Vehicle Performance
DATE: Aug. 21, 1998
SUBJECT:
Excessive Cold Crank Time, No Start, Sags/Stumble/Hesitation After A Cold Start
MODELS:
1995 (FJ) Avenger/Sebring
1995 (JA) Cirrus/Stratus
NOTE:
THIS INFORMATION APPLIES TO VEHICLES EQUIPPED WITH A 2.5L ENGINE.
POLICY: Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
Labor Operation No:
08-19-41-99
0.5 Hrs.
FAILURE CODE:
FM - Flash Module
Symptom/Condition
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.
Possible no start conditions in very cold weather (below -18° C (0° F)).
3.
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. See TSB 14-08-97 for more information on high DI fuel.
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
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 1167 OR HIGHER MUST BE INSTALLED.
Repair Procedure
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software (calibration changes).
1.
Connect the MDS (Mopar Diagnostic System) and DRB III(R) (Scan Tool) to the vehicle and power them up.
