6.0L glow plugs not working

[WillisK]

My truck won't start cold. I don't hear the glow plugs warming up as I usually do, only the fuel pump. I changed the gpcm which didn't work. Other users have been pointed to the ficm but I am unconvinced as I don't hear the glow plugs. The smoke coming from the exhaust when it almost fires tells me its getting enough fuel. Is there something else that could have failed, cutting power to the glow plugs? Or should I look again at the ficm? When it does start it purrs like a kitten. any suggestions?

[Tuscany]

You won't hear your glow plugs turn on or off thats your injectors buzzing. If your not hearing that then you have something else wrong.

[WillisK]

Ah. Thank you. So my FICM is a likely issue then.

[Tuscany]

Possibly but if your getting smoke out of the tail pipe while cranking than your ficm is firing the injectors. Need to get live data of the truck while cranking to help you.

[WillisK]

Thank you Tuscany, that is very helpful. I'll take it to the diesel shop and get them to put their computer on it

[Tuscany]

No problem. In this case it would most likely be your best bet to take it to ford and have them hook their IDS software up to it as they will be able to check EVERYTHING on the truck just make sure to tell them not to reflash the PCM.

[WillisK]

Ok I appreciate the advice. Would the re flash be harmful or is it just a costly band aid?

[Tuscany]

No it won't hurt it but depending on the strategy your truck is running it may lose fuel economy.

[WillisK]

Gotcha. Thanks for all the good advice. Very much appreciated

[Slimjr414]

Did you resolve this issue yet? my truck is doing the same thing, i have put a call into my mechanic and im waiting for a call back, just curious to see if this is going to cost me and arm and a leg...