Questioni have a 2000 dodge 2500 diesel when i am driving the truck. it semes when the truck gets warm it loses power. and it will come and go. its wired it will have a lot of power and then all of aseden it will barely move
Answer18–015–00 Rev. A
GROUP: Vehicle
Performance
DATE: Dec. 21, 2000
This bulletin is supplied as technical information only and is not an authorization for repair. No part of this publication may be reproduced, stored in a retreival system,
or transmitted, in any form or by any means, electronic, mechanical, photocopying, or otherwise, without written permission of DaimlerChrysler Corporation.
THIS BULLETIN SUPERCEDES TECHNICAL SERVICE BULLETIN 18-015-00,
DATED SEP. 08, 2000, WHICH SHOULD BE REMOVED FROM YOUR FILES.
ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS** AND INCLUDE
AN UPDATE TO THE VEHICLE MODEL YEARS.
SUBJECT:
Driveability Enhancements For Winter Fuel Use And For Hard Starts
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Cummins CM551
Engine Control Module (ECM) with new software (calibration versions: 55T18, 57T11A,
57T11B, 56T13, 59T6). There is no change to the JTEC PCM software.
MODELS:
**1998 - 2001 (BR/BE) Ram Truck**
NOTE: THIS BULLETIN APPLIES TO VEHICLES EQUIPPED WITH A 5.9L-24V DIESEL
ENGINE BUILT BETWEEN ENGINE SERIAL NUMBERS 56419738 TO 56798357, WITH
A DATE OF MANUFACTURE OF DEC. 16, 1997 TO NOV. 15, 2000. THIS INFORMATION
IS AVAILABLE ON THE ENGINE DATA PLATE, WHICH IS LOCATED ON THE LEFT
SIDE OF THE ENGINE, AFFIXED TO THE SIDE OF THE TIMING GEAR HOUSING.
SYMPTOM/CONDITION:
The customer may complain of poor driveability when winter fuel is used to power the
engine. Or, the customer may complain of a hard or no-start condition, while the engine is
at normal operating temperatures, when using any type of good quality diesel fuel.
The poor driveability condition may occur only when either straight #1 diesel fuel is
used or when other special cold climate winter blend fuels are in use.
The no-start or long engine crank condition may occur when attempting to restart
the engine while the temperature of the engine is still close to its normal operating
temperature. This hard hot restart condition may be experienced in all ambient
climates, but may be more of a concern in warmer ambient climates.
NOTE: IF TSB 18-024-00 HAS PREVIOUSLY BEEN PERFORMED TO THE VEHICLE
IN QUESTION, THEN THE ECM SOFTWARE HAS ALREADY BEEN REVISED
WITH THE CORRECT CALIBRATION TO ADDRESS THE ABOVE CONDITION(S).
THE ECM WILL NOT REQUIRE REPROGRAMMING.
18–015–00 Rev. A -2-
DIAGNOSIS PROCEDURES:
Using the Mopar Diagnostic System (MDS2) and or the Diagnostic Scan Tool (DRB
III®), with the appropriate Diagnostic Procedures Manual, verify that all engine and
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 the above
symptom has been experienced, perform the Repair Procedure.
PARTS REQUIRED:
Qty. Part No. Description
1 04669020 Label, Authorized Software Update
1 04275086 Label, Authorized Modification
EQUIPMENT REQUIRED:
CH6000 Scan Tool (DRB III®)
CH7035 General Purpose Interface Bus Cable (GPIB)
CH7000/7001 J1962 Cable
MDS2 (Mopar Diagnostic System)
NOTE: THE MDS2 AND DRB III® ARE REQUIRED TO PERFORM PART OF
THIS REPAIR, WHEN USING THE MDS2 AND THE DRB III®, THE SYSTEM
MUST BE OPERATING AT CIS CD 2073 OR HIGHER.
REPAIR PROCEDURE:
1. Log onto the MDS2 (Mopar Diagnostic System).
2. Connect the MDS2 and DRB III® to the vehicle and switch the ignition key to “ON”.
NOTE: AUTO CONNECTION WILL OCCUR ONCE THE DRB III®, MDS2, AND VEHICLE
ESTABLISH COMMUNICATION. THE “CANNOT READ VIN FROM DRB III®” MESSAGE
(ON THE MDS2) WILL BE REPLACED BY THE VEHICLE VIN. PRESS THE “OK”
BUTTON ON THE MDS2 TO REQUEST A MDS2 SESSION FOR THE VEHICLE VIN
INDICATED. PRESS THE “OK”BUTTON WHEN ASKED TO BEGIN SESSION.
3. Push the FLASH tab on the MDS2.
4. Select READ PART NUMBERS FROM VEHICLE and click SHOW
UPDATES on the MDS2.
NOTE: A MESSAGE MAY APPEAR (AFTER STEP 3 OR 4) THAT INDICATES NO
UPDATES ARE AVAILABLE. IF THIS OCCURS, MAKE SURE YOUR DIAGNOSTIC
EQUIPMENT IS OPERATING AT THE LATEST SOFTWARE LEVEL AS LISTED
EARLIER IN THIS BULLETIN. IF THE LATEST SOFTWARE IS INSTALLED,
AND NO UPDATES ARE AVAILABLE ANOTHER VEHICLE CONDITION EXISTS
THAT WILL REQUIRE FURTHER INVESTIGATION.
5. Select the new software part number with the light pen and click
UPDATE CONTROLLER
