FICM again.

Coposrv · Jan 23, 2014

Is it just bad batteries that will kill the FICM? I had my original FICM repaired by a company in July. It's now acting up again. I haven't checked voltage yet but I pulled a p6011 code. Has anyone used the replacement circuit board of rockauto?

FaSSt9602 · Jan 23, 2014

Just go with the bulletproof diesel unit and never worry about it again. They really aren't much more than a refurb. Just get the power supply side if nothing else...

Coposrv · Jan 24, 2014

Well. Truck died going into work today. Got up and cycled the glow plugs thre times at 5 this morning. Temps around 0F and not plugged in. She fired right up no signs of trouble. Idled for 10-15 minutes and drove easy for 20-30 mins. Getting on the highway she wouldn't rev past 2k without hesitation. Wouldn't go over 40-50. Started stumbling more and more then finally it shut off. Coasted in neutral for a minute. Started back up in neutral around 20mph. Drove ok for a few minutes but still wouldn't go over 50mph. Got to a safe spot and pulled over. Called AAA. While waiting on the side of the road I let it idle and it seemed ok for the hour or so. Shut it down while on the tow truck. When I got home she fired right up on the tow truck and drove into the driveway just fine.

Coposrv · Jan 24, 2014

I'm going to get the batteries tested and a scan gauge today and look everything over. I'm planning on changing the fuel filters. Giving her an oil change with rev x and talking to Ed at ficm repair. He sent me out a new unit 8 months ago and it ran great up until a few days ago. Any other thoughts?

Cold Roller · Jan 24, 2014

It could be the FICM, but what voltage were you seeing? It could be a gelled fuel filter!

Mdub707 · Jan 24, 2014

It sounds more like you gelled buddy. Pull your fuel filters and inspect them.

POWER-STRUCK · Jan 24, 2014

Mdub707 said:
It sounds more like you gelled buddy. Pull your fuel filters and inspect them.

^^^^what he said^^^^

but if needed I have the voltage boards in stock and I just got a shipment of 100 of the hard to find resistors that fail

Coposrv · Jan 24, 2014

Cold Roller said:
It could be the FICM, but what voltage were you seeing? It could be a gelled fuel filter!

Haven't checked voltage yet. My multimeter and tools are stuck in my gang box an hour away. I'm in the GFs car heading to the shop. Pulling filters and giving it an oil change. Picking up a scan gauge as well for troubleshooting and piece of mind.

Coposrv · Jan 24, 2014

POWER-STRUCK said:
^^^^what he said^^^^

but if needed I have the voltage boards in stock and I just got a shipment of 100 of the hard to find resistors that fail

I'll be digging into it today. Hopefully it's something small.

ken6881 · Jan 24, 2014

I did a solder job on one back in June that wouldn't even start the truck it's still running strong today. If you want to try it there are some threads on it.

Sent from my iPhone using Tapatalk

Atsah · Jan 24, 2014

Mdub707 said:
It sounds more like you gelled buddy. Pull your fuel filters and inspect them.

:whs:

Coposrv · Jan 24, 2014

Alright guys. Got home just now with everything I need. I hope. New fuel filters from the international dealer, 4 gallons of rotella synthetic. Some rev x and a scan gauge 2. Just looking over the scan gauge before I install it. Tomorrow temps will be nearing 40 so hopefully I can get this thing figured out and back on the road.

Coposrv · Jan 25, 2014

Swapped fuel filters this morning and the ones I pulled out were pretty nasty looking. Hooked up my scangauge and while cranking I have FLP at 11volts and FMP went down to 37.5. After letting it run for a few minutes FLP went up to 13-13.5 and FMP went to 43.5-47. I think the FICM is going but wasn't as bad as I thought. I'll take it for a drive when it gets up to temp and see what happens.