Originally Posted by powercat
Ok, Iím afraid my FICM is shot,
05 Excursion 6.0. bought it in May and had new batteries installed then.
Running a CTS and the FICM voltage is 47-48 prior to start and then when idling drops down to the low 30's and gradually works it's way back up to the 47-48 range when warm.
From what Iíve read, im guessing the FICM is shot soÖ.
How long can i run like this before it damages the injectors or something else?
Where is the best place to get it fixed? I think I would like to get it repaired and have an FICM tune installed. Iíve read the FICMrepair.com mentioned here, is that the way to go.
Also, sometimes my monitor doesnít turn on until I start the engine. I have to unplug it to see the FICM voltage prior to start. Whatís up with that?
Thanks for the help
Don't take the chance, just take care of it now. I had mine repaired by FICMrepair and was really happy with the service and the fast turn-around. I got the eco-tune on mine and it made a big difference as far as throttle response. I can't speak to mileage as I don't drive the truck every day and have not had a chance to record that yet.
I would also look into the upgraded repair for a little extra peace of mind. When I pulled out my FICM, it had a manufacturer date of 2008 and my truck is an 03 so even brand new they do not seem to last long.