DTC P0380

Ok, so the code reads "Glow Plug Feedback Curcuit"....

What is the problem and how does it get fixed???

 

If its is a FE(federal emissions) truck then it is probably the Glowplug relay, from the research I did it would appear that its about $70 at a GM dealer for the whole glowplug controller

The gow plug relay is mounted on the drivers side valve cover at the very rear behind the turbo outlet pipe. It's a small black plastic box with a 4 wire plug on top of it and then 3 large studs with big cables hooked to it. The relays in it are sealed and you cannot inspect the points inside of them.

Part# 97371491

Hope that helps you

 

thanks soo much man, i'll take a peak at it and get the part and change it out... We will see if this code will go away...

 

Did changing the relay get rid of the code? My truck has been throwing that code on and off all winter, but the truck never had a problem starting in 5 degrees without being plugged in.

 

I havn't had a chance to get to it... but I don't notice a difference with or without the code either... I do plan to fix it at some point tho...

 

been having the same problem also have to keep clearing the code with the banks pda. but it comes up every time i start the truck.

 

I don't think it's expensive or hard to do... it's just that i've got a baby due in a couple months, building a house as owner/builder/contractor/sub-contractor, and got everyday life and 40+ hours a week of work going on sooo i've been spread pretty thin lately and the dmax has been on the back burner for a little bit... can't wait to get time for the truck again...

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if you get yours changed out before i do, let me know if your code goes away...