Durango 2WD V8-4.7L VIN N (2001)
PROM - Programmable Read Only Memory: All Technical Service Bulletins
PCM - Engine Spark Knock Under Load
NUMBER: 18-006-01 REV A
GROUP: Vehicle Performance
DATE: Mar. 02, 2001
THIS BULLETIN SUPERCEDES TECHNICAL SERVICE BULLETIN 18-006-01, DATED FEB. 23, 2001, WHICH SHOULD BE REMOVED
FROM YOUR FILES. ALL REVISIONS ARE HIGHLIGHTED WITH **ASTERISKS**. THIS LATEST REVISION INCLUDES ADDITIONAL
EMISSIONS PACKAGES.
SUBJECT:
2001 M.Y. Engine Spark Knock
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software (calibration level 01Cal1ED,
01Cal13, or 01Cal14)
MODELS:
2001
(AB)
Ram Van
2001
(BR/BE)
Ram Truck
2001
(DN)
Durango
NOTE:
THIS BULLETIN APPLIES TO VEHICLES WITH PCM SOFTWARE THAT IS EARLIER (LESS OR LOWER) THAN THE CALIBRATIONS
LISTED IN THE TABLE SHOWN. REFER TO THE TWO TABLES FOR SPECIFIC APPLICATIONS AND EXCLUSIONS.
NOTE:
THE FOLLOWING EMISSION PACKAGES ARE NOT APPROVED AND ARE EXCLUDED FROM THIS BULLETIN. THE PCM
CALIBRATION OF ANY EXCLUDED VEHICLE IS NOT TO BE REPROGRAMMED FOR A SPARK KNOCK COMPLAINT. BEFORE
ATTEMPTING A REPROGRAMMING SESSION INSPECT THE TYPE VEHICLE AND ENGINE FOR POSSIBLE EXCLUSION. SEE TABLE
AS SHOWN.
SYMPTOM/CONDITION:
Some vehicle engines may exhibit a light-to-moderate spark knock condition during acceleration (under load).
DIAGNOSIS:
1.
Verify that the above tables and the following NOTE(S) have been reviewed and understood.
2.
Verify the calibration level of the PCM.
