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post #1 of 16 Old 02-11-2013, 09:05 AM Thread Starter
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12v power point not working

Hey guys,

I'm hoping you can help me out. I have a 2008 F-250 6.4L. I use the 12v power point on the dash for a monitor and also a cell phone charger. Lately this has been on the fritz, working only intermittently. I changed out the charger for a new one and the problem persists. I checked all the fuses and scraped the connections good....still barely works. (Also the same in the cig lighter)

I've never used a multimeter on vehicle power ports, but I have one with dc capabilities.

Have any of you had a similar problem?

How do I check the power output at the 12v power point? (where to I stick the probes?)

How do I test the fuses for continuity or something?



Any other advice you can give me?


Thanks,

MT

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post #2 of 16 Old 02-11-2013, 05:15 PM
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the casing is ground and dead center of the the cig outlet is the power. you may have a loose harness or a bad connector. this sounds like a ground issue more than power.


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post #3 of 16 Old 02-12-2013, 06:47 AM Thread Starter
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Quote:
Originally Posted by K1LLsW1TchEd View Post
the casing is ground and dead center of the the cig outlet is the power. you may have a loose harness or a bad connector. this sounds like a ground issue more than power.
I bet the two outlets are grounded together then, because both have been sporadic. I suppose I have to tear the dash apart to get to the connections in the back....

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post #4 of 16 Old 02-12-2013, 06:52 AM
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I would try swapping the fuse out for those outlets first. Try that sometimes fuses take a partial crap, its a long shot but try. If not I would say its a ground issue. Crown vics used to act up


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post #5 of 16 Old 02-13-2013, 11:49 AM Thread Starter
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Ok, fuses checked out fine. But I swapped with new. No luck.

The outlets are getting power, 14.1v or so. The ground continuity reads like 24-31 ohms...should be 0 I think. So, I'm guessing you are correct K1LLs....poor grounding issue.

So, now, do I have to remove the dash to check the grounding connections for the outlets? I hope not! Surprisingly, I cannot find anyone with a 6.4L with similar issues or how they solved it.

Thanks,

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post #6 of 16 Old 02-13-2013, 12:11 PM
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There are ground studs on the passenger and driver side kick panel. Run a ground from either side to the outlets. Try the new ground wire on the outlets


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post #7 of 16 Old 02-13-2013, 12:18 PM Thread Starter
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Quote:
Originally Posted by K1LLsW1TchEd View Post
There are ground studs on the passenger and driver side kick panel. Run a ground from either side to the outlets. Try the new ground wire on the outlets
I can't find a manual on how to gain access to the back of the outlets. Do you know if they pop out, or do I need to remove the dash. (my guess is they don't pop out with a screw driver anymore).

...back to searching...

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post #8 of 16 Old 02-13-2013, 12:29 PM
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The whole radio bezel will pop out then you will have better access


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post #9 of 16 Old 02-13-2013, 12:32 PM Thread Starter
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Thanks, just found this:


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post #10 of 16 Old 02-13-2013, 12:35 PM
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Good deal, keep us posted


2@@8 F250 FX4 Supercab
SCT Livewire w/IDP's Tunes
S&B Cold Air Intake
Rudy's EGR Delete w/FloTech Elbow
33" Nitto Terra Grapplers
MBRP 4"Exhaust/5" Tip and Hollowed DPF
Bilstein Shocks
Kicker Hide-Away Sub
Drilled and Slotted Rotors

Rides:
2008 F250 FX4
2005 Mazda 6
2004 F150 STX
2007 Nissan Maxima SE
Coming soon: VW GTI
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