problem changing gears....

mtheoro

Member
:
Mazda 3 Sport GT
Hello everybody,

I have a 2005 Mazda3Sport, auto, with 9,000km on it and it seems there is a problem when switching from 1st to second gear. When the engine is cold there is a small forward jerk movement as it switches from first to second. It happens two or three times when I go from full stop, and there is nothing after that. It is not overly annoying but I am afraid it might be the sign of something more serious. Have you experienced something similar? I remember a while ago reading something similar on this forum but I cannot find the thread. Btw, I had the scheduled oil change at about 6K.
I will take the car to the dealer to have it checked out but I want to find as much as posible on my own first, I never trust those bastards.

Thank you!
 
Last edited:
Mine does the same thing and stops after it warms up to running temp. My dealer told me that it is just something that the three does and that it isnt anything to worry about.
 
Thanks goldwing! I didn't find the specific TBS on the site from your link but I found it on some other board. I post it here, maybe someone else needs it

TSB: 05-010/05
2004-2005 MAZDA3 - 1 - 2 SHIFT SHOCK
APPLICABLE MODEL(S)/VINS
2004 2005 Mazda3 (Automatic transmission only)

DESCRIPTION
Some vehicles may exhibit intermittent shift shock during 1-2 upshift. The symptom is due to improper PCM calibration. A revised PCM calibration is now available to correct this issue.

Customers having this concern should have their vehicle repaired using the following repair procedure.

REPAIR PROCEDURE
1. Reboot the WDS PTU to clear memory before reprogramming.
2. Using WDS B39.11 or later software, reprogram the PCM to the latest calibration (refer to "Calibration Information" table) by following the "Module Reprogramming" procedure.
NOTE:

Always update the WDS PTU first, then install the needed calibration file that WDS shows during PCM reprogramming. Go to "WDS Calibration" on ESI and download the "update" file. If the PTU is not updated to the latest WDS calibration level, the calibration file will not install into the PTU.

It is not necessary to remove any fuses or relays during PCM reprogramming when the WDS screen prompts you to do so. You may accidentally stop power to one of the PCM terminals and cause the PCM to be blanked, or you may receive error messages during the WDS reprogramming procedure.

WDS shows the calibration part numbers after programming the PCM.

Please be aware that PCM calibration part numbers and file names listed in any Service Bulletin may change due to future releases of WDS software, and additional revisions made to those calibrations for service related concerns.

When reprogramming a PCM, WDS will always display the "latest" calibration P/N available for that vehicle. If any calibration has been revised/updated to contain new information for a new service concern/issue, it will also contain all previously released calibrations.

When performing this procedure, if the WDS PTU is not docked and connected to 115V-120V, we recommend that a battery charger be installed on the vehicle battery and turned ON to a maximum charge of no more than 20 AMPS to keep the vehicle battery up to capacity. If you exceed 20 AMPS, it will damage the WDS PTU. Also the external battery power supply cable should be connected to the vehicle battery and the PTU.


3. After performing the PCM reprogramming procedure, verify the repair by starting the engine and making sure there are no MIL illumination or abnormal warning lights present.


goldwing2000 said:
Technical Service Bulletin.

It means they know they ****** up but won't fix it until you complain.

See here: http://www.msprotege.com/forum/showthread.php?t=106250
 
Thanks. Do you have a link to where you found that?
 
mtheoro said:
How come Mazda US, Mazda Canada don't make them public on their websites?? After all, these things are pretty important....

Easy. If you know about it, you'll b**** about it. The less they have to fix on your car, the happier they are.
 
Back