FICM Voltage
Thread Starter
|
Logistics Pro
Joined: Jul 2014
Posts: 4,673
Likes: 531
From: Houston, Texas
FICM Voltage
Warming up my truck for my trip this morning and noticed my FICM voltage at 44. Revved and it went to 48.5. I monitor that while driving and never see it below 46, usually at 48. Do I have a problem in my future?
Mountain Pass
Joined: Apr 2020
Posts: 183
Likes: 4
From: Little Chute, WI
I just talked to Ed at FICMRepair about this this yesterday. I noticed that my FICM lives between 47.0v and 47.5v, seldomly going to 48v and on start-up when the glow plugs are on it drops to 46.5v and sometimes 46.0v. I wanted to make sure I didn't have an issue. He said the trouble begins at 45.5v.
Thread Starter
|
Logistics Pro
Joined: Jul 2014
Posts: 4,673
Likes: 531
From: Houston, Texas
I turned it off and when I started it again an hour later, it was above 46, and now on the highway it's around 48.
I do have a glow plug issue on one cylinder. Code but no CEL.
I do have a glow plug issue on one cylinder. Code but no CEL.
Thread Starter
|
Logistics Pro
Joined: Jul 2014
Posts: 4,673
Likes: 531
From: Houston, Texas
Thx, guys. I'll get Ed's help. Hopefully, it makes it 3000 miles more until I get home. If not, I'll have to layup on the road until Ed can get me one. Am I risking my injectors too?
Logistics Pro
Joined: Mar 2010
Posts: 3,532
Likes: 495
From: NC
I just talked to Ed at FICMRepair about this this yesterday. I noticed that my FICM lives between 47.0v and 47.5v, seldomly going to 48v and on start-up when the glow plugs are on it drops to 46.5v and sometimes 46.0v. I wanted to make sure I didn't have an issue. He said the trouble begins at 45.5v.
More Turbo
Joined: Feb 2005
Posts: 574
Likes: 3
From: Grand Rapids,MI
just got a new one from Ed a few months ago , my voltage would go to as low as 22 and I never lost any injectors , but it didn't like cold starts it would rant and rave till it got to 160 then the FICM voltage would go to 46, now I never see anything lower the 48 , spent some money and its well worth it.
Thread
Thread Starter
Forum
Replies
Last Post
Brnfree
1980 - 1986 Bullnose F100, F150 & Larger F-Series Trucks
12
Jul 28, 2013 09:07 PM
juvat97
6.0L Power Stroke Diesel
6
Apr 27, 2011 01:24 PM
adbecker
1948 - 1956 F1, F100 & Larger F-Series Trucks
1
Oct 11, 2000 12:20 PM
