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My pontiac grand am has a error code u1000 loss of serial communications for class 2 what does this mean? How to repair

\015 Had motor mounts replaced and now car cuts off in traffic.\015 Posted / edited by AnonymousUser on : 15-01-2018

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My pontiac grand am has a error code u100 loss of serial communications for class 2 what does this mean? How to repair


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