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Discussion Starter · #1 ·
Soo i bought a 12' lt was running good still does pretty much except every so often Nd pretty much only when i have the a.c on and idleing it starts to shake out of no where really bad and lose power. I ran a the codes and all these popped up.
70943
70944
 

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2011 Malibu LTZ 3.6L V6 Red Jewel Tintcoat
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It's possible that those are old codes that were never erased.

I have a 2011 that tends to show the 'Service ESC' and 'ESC Off' messages. On mine it's likely due to the SAS (steering angle sensor), but since it has hydraulic PS, all it has is a sensor. For those with EPS, the sensor is part of the steering motor under the dash.

Check out this thread, too:
 

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Write down the current codes then clear them and see which ones pop up again when the check engine light comes back on again this way you know for sure which codes are current. ESC and traction always pop up when check engine light comes on.
 
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