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p208b

  1. General Discussion
    I’m DEFinitely not a happy camper. Bought my 2021 Chevy 1500 3L i6 Duramax with the $20K Black Window package from SCA Performance two months ago. At 2900 moles I got the Service DEF system immediately and CEL. Took it in for service and was told the exhaust temp sensor failed or was failing...
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