Glow Plug code and CEL
 

Greetings all. Truck has been running very well while in the warmer North Carolina climate pulling trailers with no limp mode or wrench light. However, when daughter started the truck this morning, SGII showed one DTC and when she pulled it up it was P0675. OK, glow plug num 5 maybe or the module. No issues starting or rough cold idle. I told her to clear the code and we'll see if comes back.

She did ask if it is something she should have it repaired before the trip back to Vermont. So I thought I'd ping the group here since reading posts, they seem to be fairly easy to replace (and assuming it isn't a chafed wire) and I could probably save her some $. Just want to make sure there isn't any chance of real engine damage.
Thanks in advance,
AJG

Glow plugs are a starting aid and not used in the actual combustion process or engine operation. 1 should make not much difference. You could probably leave it alone till she gets back. If she breaks the glow plug wire harness a likely possibility they aren.t cheap
and a dealer item. Used I would not trust and leary of ebay type stuff.
JMHO

If doing glow plugs on the newer engines just plan on new harnesses. Use only oem glow plugs and do the set.

Seems the hardest part of doing the glow plugs is getting the brittle plastic harness off the plugs themselves. There is a tool that is suppose to get them off easier. I have heard mention of it on here but have never seen one.

Even with the tool there is a good chance of breaking them. Plastic once brittle stays brittle and weaker.