2003 6.0 Troubleshooting
Hotshot
Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
So it sounds like the FICM will Beat the Alternator to your House
DO NOT Attempt to Start the truck when the FICM Gets there WAIT Untill you get the New Alternator Hooked up before you try ANYTHING!!!!!!!!!!
Your Last FICM From ED Burned up SO FAST that I believe your Alternator is Giving the System WAY TO Much Power and STraight up BURNING THING UP. To much power will Kill it instantly and is Way More DEADLY then not enough power!!
That's Pretty Decent of Ed to send you the 2nd FICM for Free!!!!
Theres Clearly enough Info here in this Thread that Should have Voided your Warrenty even without this thread Ed will see it when he opens it up it will be obvious
Electronics are Very Touchey so Hold off Starting the truck until your charging system is at 100%
DO NOT Attempt to Start the truck when the FICM Gets there WAIT Untill you get the New Alternator Hooked up before you try ANYTHING!!!!!!!!!!
Your Last FICM From ED Burned up SO FAST that I believe your Alternator is Giving the System WAY TO Much Power and STraight up BURNING THING UP. To much power will Kill it instantly and is Way More DEADLY then not enough power!!
That's Pretty Decent of Ed to send you the 2nd FICM for Free!!!!
Theres Clearly enough Info here in this Thread that Should have Voided your Warrenty even without this thread Ed will see it when he opens it up it will be obvious
Electronics are Very Touchey so Hold off Starting the truck until your charging system is at 100%
Thread Starter
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New User
Joined: Feb 2012
Posts: 17
Likes: 0
Really?
"Theres Clearly enough Info here in this Thread that Should have Voided your Warrenty"
Blade35,
Please, why don't you provide more specifics as to why you think my warrantee should be voided? I'm very interested in hearing.
Blade35,
Please, why don't you provide more specifics as to why you think my warrantee should be voided? I'm very interested in hearing.
Cargo Master
Joined: Oct 2009
Posts: 2,283
Likes: 0
From: missouri
We all I know is I suggested in from the start of the thread you should check your batteries and alternator to make sure they are up to par. And you commented a couple of times that YOU checked them as good as you could and you didnt want to take it off and take it somewhere that knew what they were doing. Now I am not slamming you because you dont know how to check it properly. If you dont know you dont know, no big deal. But sometimes we all need to man up and admit our downfalls ans shortcomings.
Hotshot
Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
Ok, so I took you guy's advice and got a refurb FICM from FICM repair. I decided to let them ship me one first then send mine back. Put the new one in yesterday and initially seemed like a great fix. Old FICM was running as low as 20V on the Scanguage and truck hard to start in the morning and smoke. With new FICM showing pretty much 48V and ran great initially. This morning it was 40 deg out and it started right up and I was able to drive it right away.
The one issue (maybe) I did see this morning was right after I started the truck the alternator showed only around 12v for about 4-5 minutes. Then, it suddenly rose right up to just over 14v. As I was leaving my first customer's house doing about 25mph the truck just shut off. I shifted to neutral and it started right back up. I also noticed my volts at times are fluctuating from about 13.5 up to 15.2. I'm not sure if that's acceptable or not.
Anybody got any ideas??
The one issue (maybe) I did see this morning was right after I started the truck the alternator showed only around 12v for about 4-5 minutes. Then, it suddenly rose right up to just over 14v. As I was leaving my first customer's house doing about 25mph the truck just shut off. I shifted to neutral and it started right back up. I also noticed my volts at times are fluctuating from about 13.5 up to 15.2. I'm not sure if that's acceptable or not.
Anybody got any ideas??
Not normal for an Alternator to hang in the 12 volts range that Long this points to charging system Failure or Parasitic draw
So at your batterys under this condition theres 15.2-15.5volts its way to much and YES I added UP since its more at the batteries vs OBDII Port
Your alternator is burning things up the voltage regulator is Shot inside it
Charging system Health Dictats FICM Health keep the charging system happy and you wont have FICM Problems
Hotshot
Joined: Apr 2010
Posts: 19,061
Likes: 238
From: Saratoga Springs,UT
Hey I was there once to
I have burned a DVM up once or twice when I was Learning LOL
And Yes Im Always still learning But Electronics are very Unforgiving
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