Engine Controls - Powertrain Growling Sound
NUMBER: 18-045-07GROUP: Vehicle Performance
DATE: October 12, 2007
THE StarSCAN(R) FLASH FILES FOR THIS BULLETIN MUST BE RETRIEVED FROM THE INTERNET.
StarSCAN(R) SOFTWARE LEVEL MUST BE AT RELEASE 8.02 OR HIGHER FOR THIS BULLETIN.
SUBJECT:
Flash: Powertrain Growl Sound, Coordinated Change
OVERVIEW:
This bulletin involves selectively erasing and reprogramming the GPEC Powertrain Control Module (PCM) with new software, replacing the right engine mount, and making modifications to the air induction system based on clean points listed below.
MODELS:
2007-2008 (JS41) Avenger / Sebring
NOTE:
This bulletin applies to models equipped with a 2.4L gasoline engine (Sales Code ED3) as follows: Engine Mount replacement applies to models built prior to June 7, 2007 (MDHO6O7XX), Flash portion applies to models built prior to June 16, 2007 (MDH 0616XX), and Air Induction System modification applies to models built prior to August 4, 2007 (MDH0804XX). See Labor Operation Breakdown for proper combination of repairs to clean point.
SYMPTOM/CONDITION:
Some customers may experience a growl sound between 2000 and 3000 RPM. This sound may be more noticeable in cooler ambient temperatures.
DIAGNOSIS:
Using a Scan Tool (StarSCAN�) with the appropriate Diagnostic Procedures available in TechCONNECT, verify all engine systems are functioning as designed. If DTC's are present record them on the repair order and repair as necessary before proceeding further with this bulletin.
If the symptom/condition is described by the customer or verified, perform the Repair Procedure based on each of the clean points listed above.
PARTS REQUIRED:
SPECIAL TOOLS / EQUIPMENT REQUIRED:
FLASH PROCEDURE - USING THE INTERNET TO RETRIEVE THE FLASH FILE:
CAUTION:
DO NOT START THE ENGINE PRIOR TO COMPLETING STEP 5n and/or 8h. IF THE PROCEDURE IS NOT ADHERED TO THE CONTROLLERS MAY NOT COMPLETE THE PROGRAMMING PROCESS.
NOTE:
When performing this Repair Procedure, the software release level in the StarSCAN(R); must be programmed with 8.02 software or higher. The software release level is visible in the blue header at the top of the StarSCAN(R) screen.
NOTE:
The StarSCAN(R) diagnostic scan tool fully supports Internet connectivity. However, to take advantage of this feature you must first configure the StarSCAN(R) for your dealership's network. Make sure the StarSCAN� is configured to the dealership's network before proceeding. For instruction on setting up your StarSCAN� for the dealer's network refer to either:
"DealerCONNECT > Service > StarSCAN and StarMOBILE tools > Online Documentation", or refer to the StarSCAN(R) Quick Start Networking Guide. The StarSCAN(R) Quick Start Networking Guide is also available on the website under the "Download Center".
NOTE:
If this flash process is interrupted/aborted, the flash should be restarted.
1. Install a battery charger and verify that the charging rate provides approximately 13.5 volts. Set the battery charger to continuous charge. Do not allow the charger to time out during the flash process. Remove the charger from the battery when the flash process is complete.
2. Connect the CH9410 StarSCAN(R) ethernet cable to the StarSCAN(R) and the dealer's network drop.
3. Connect the CH9404 StarSCAN(R) vehicle cable to the StarSCAN(R) and the vehicle.
4. Power ON the StarSCAN(R).
5. Using the StarSCAN(R) at the "Home" screen:
a. Select "ECU View"
b. Touch the screen to highlight the PCM in the list of modules.
c. Select "More Options"
d. Select "ECU Flash"
e. Record the part number at the top of the "Flash PCM" screen for later reference.
f. Select "Browse for New File". Follow the on screen instructions.
g. Select "Download to Scantool".
h. Select "Close" after the download is complete, then select "Back".
i. Highlight the listed calibration.
j. Select "Update Controller". Follow on screen instructions.
k. When the update is complete, select "OK".
l. Verify the part number at the top of the "Flash PCM" screen has updated to the new part number.
m. Turn the ignition switch to the OFF position for no less than 15 seconds.
n. Turn the ignition switch to the RUN position (DO NOT CRANK THE ENGINE) for no less than 20 seconds.
CAUTION:
DO NOT START THE ENGINE PRIOR TO COMPLETING 5n OR 8h. IF THE PROCEDURE IS NOT ADHERED TO THE CONTROLLER MAY NOT COMPLETE THE PROGRAMMING PROCESS.
6. Using the StarSCAN(R) at the "Home" screen:
a. Select "ECU View".
b. Select "PCM".
c. Select "Misc. Functions".
d. Highlight "Reset Memory" and Press Start.
e. Follow the remaining prompts to reset "All Adaptive Memory".
NOTE:
Due to the PCM programming procedure, a DTC may be set in other modules within the vehicle. Some DTC's may cause the MIL to illuminate. From the "Home" screen select "System View". Then select "All DTCs". Press "Clear All Stored DTCs" if there are any DTCs shown on the list.
NOTE:
The following step is required by U.S. law when reprogramming a PCM and/or TCM.
7. Type the necessary information on the "Authorized Modification Label p/n 04275086AB and attach near the VECI label (Fig 1).
ENGINE MOUNT REPLACEMENT
1. Following the procedures listed in DealerCONNECT > TechCONNECT, replace the right engine mount with pn 05105450AB.
2. Neutralize the Powertrain as follows:
a. Loosen the front and rear engine mount through bolts.
b. Torque the rear engine mount through bolt to 47 N.m (35 ft. lbs.).
c. Torque the front engine mount through bolt to 47 N.m (35 ft. lbs.).
AIR INDUCTION SYSTEM MODIFICATION
1. Unsnap the upper section of the air cleaner housing.
2. Lift the upper housing up and locate the snorkel attached to the upper housing (throttle body air inlet) (Fig. 2). Unsnap, remove and discard the long snorkel.
POLICY:
Reimbursable within the provisions of the warranty.
TIME ALLOWANCE:
FAILURE CODE:
Disclaimer:
This bulletin is supplied as technical information only and is not an authorization for repair.