can any of you help me figure out what to do? i am getting a #6 glow plug fail code. is this the actual glow plug going bad or something in the circuit?
thanks.

 

is it something i can fix on my own? how hard is glow plug replacement?

 

Here's what happened to me. #6 glow plug wire shorted out on the pushrod. Pictures included.
https://www.ford-trucks.com/forums/s...d.php?t=278697

 

Mine said "glow plug ground fault" eventually started to miss and it turned out to be a loose connector inside the valve cover that the dealer replaced and wire clipped for future, they also charged me $375. it could also be the glow plug relay/module (depending on whether you have California emissions or not) have it scanned.