Join Now
International Automotive Technicians Network

P0677 Diagnostic Trouble Code Discussion for September 2011

Glow Plug No. 7 Control Circuit Malfunction


Note: This is a professional automotive technician's resource.
Vehicle Owners: If you are seeking an automotive repair professional to service your vehicle, visit the iATN Repair Shop Finder.

Trouble Ticket Help Requests for DTC P0677
Help Request Posted
2008 Ford F-450 Super Duty XLT 6.4L MIL Lamp on VIN: 1FTXW43R98
P0677: Cylinder 7 glow plug circuit open. ... truck had P0677 a few weeks later it added P0672. #7 AND #2 glow plug circuit open. I can clear codes with engine running and light will stay off. It will come back on immediatly upon next start up. I checked resistance on glow plugs at connector and at in...
September 28, 2011
2008 Ford F-450 Super Duty XLT 6.4L MIL Lamp on VIN: 1FTXW43R98
P0677: Cylinder 7 glow plug circuit open. ... truck had P0677 a few weeks later it added P0672. #7 AND #2 glow plug circuit open. I can clear codes with engine running and light will stay off. It will come back on immediatly upon next start up. I checked resistance on glow plugs at connector and at in...
September 28, 2011