Million mile 2007 duramax

Plain jane

New member
Aug 6, 2019
1
0
0
Does anyone know who I could contact to see if GM has a buyback program on Million Mile Trucks.

My 2007 Chevy Duramax has 999975 miles on her. She is getting ready to turn over a million miles. Original motor and transmission.
 

Columbus450

Member
Aug 24, 2017
260
0
16
Louisiana
That is awesome ,What work have you done to it just basic maintenance, anything major fail? Do you have a picture of the odometer


Sent from my iPhone using Tapatalk
 

DAVe3283

Heavy & Slow
Sep 3, 2009
3,720
287
83
Boise, ID, USA
Please do film the odometer rollover, and the 1 mile afterwards. I have heard multiple places report the instrument cluster dies at 1M or 1,000,001 miles, and I am curious if that is true, and what it looks like when it happens.

If true, I really wonder if it was intentional (to prevent rolling back to 0? just being dicks?) or a bug (trying to write 7 digits to 6 positions in RAM causes an overflow or similar).

I've been figuring out the GMT800 IPC best I can. I've mapped out where most of the data is stored:
IMG_20190719_153401.jpgIMG_20190719_153403.jpgIMG_20190719_153410.jpgIMG_20190719_161102.jpg

If yours does die at 1M miles, I would be quite interested in taking a look at it to try and understand what goes wrong. Might even be able to fix it for you, though probably by resetting the odometer to a lower value (back to 0 if you want).
 

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