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Chevrolet TSB #20-NA-065
2012 Chevrolet Sonic
![CarComplaints.com Seal Of This Might Hurt](http://cdn2.carcomplaints.com/img/seals/bad.png)
TSB Document:
Affected Component: ENGINE AND ENGINE COOLING
- Summary
- This bulletin provides information on tools available to find an intake vacuum leak or exhaust leak to correct a condition of MIL Illuminated with Multiple Fuel Trim and/or Oxygen Sensor Codes Set.
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