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P0380 Diagnostic Trouble Code Discussion for October 2010

Glow Plug Feedback Circuit

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Trouble Ticket Help Requests for DTC P0380
Help Request Posted
1999 Ford F-250 Super Duty XLT 7.3L No Glow Plug Oper VIN: 1FTNX21F2X
P0380: Glow Plug Relay Circuit Malfunction. ... plugs when cold. Power to glow plug relay, relay tests good, and you can disconnect the glow plug relay small wire terminals and jumper one side to power and one to ground and it heats up glow plugs nicely and starts right up. Problem is computer will not...
October 28, 2010