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P0677 Diagnostic Trouble Code Discussion for April 2015

Glow Plug No. 7 Control Circuit Malfunction


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Trouble Ticket Help Requests for DTC P0677
Help Request Posted
2007 Chevrolet Express 2500 6.6L Hesitation VIN: 1GCGG25607
P0677: Glow Plug No. 7 Control Circuit Malfunction. I don't know how I got roped into this one but not a diesel tec . My father I laws van. He's complaining lose of power . So I got some scan data the balance rates look good my worst one is 8 and that rate is -4 but the code comes up leaky cly 8 injector .so ia...
April 12, 2015