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Less light with more Power?

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Old Sep 29, 2009 | 12:11 PM
  #1  
Stroke'NPower's Avatar
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From: A mile high
Less light with more Power?

Ok, here's the thing(s)

My 2003 F-350 7.3PS SD w/146,000 is acting up,

I put the truck in reverse the radio turns off, take it out of reverse and the radio comes back on.
I accelerate and the head and dash lights go dim as well as the batter light flickers, let of the throttle and the lights go really bright, and on a few occasions the dash needles all peg out, go dead, peg out, go dead and then go back to normal.
If I am listing to a AM radio station and I accelerate I get a buzzing sound through the speakers.

Now, about a year ago the OEM alternator fried, and I mean FRIED smoke and all,
I replaced it and had no issues until just recently.
I was thinking it was the batteries, I have a computer station setup for work stuff and I had left the AC converter on over the weekend and drained the batteries dead, charged them and had them tested, they came back as good.

I am guessing that alll the issues are related to the same problem.

So with good batteries, and a new(ish) alternator, what else could be the issue?

Please tell me its the batteries or the alternator, because if its the board I am going to have to roll it off the nearest cliff.

Dazed and more dazed,
Thank you all in advance for your wisdom and help.
 
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Old Sep 29, 2009 | 12:14 PM
  #2  
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onelionhunter
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From: Belgrade, MT
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Grounding

I would be checking all of my battery cables, especially the ground cables for starters. A bad ground can cause some crazy results.
 
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Old Sep 29, 2009 | 12:18 PM
  #3  
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From: A mile high
Sounds like I will be getting dirty in about 10 minutes, I cant' believe I didn't think of that, always the snake right in front of you. Will be getting back to you on the results.
Thanks
 
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Old Sep 29, 2009 | 12:26 PM
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87 F-150 I6
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It sound like an alt problem, can you take it off and load test it?

Where are you located, I live in Parker and have AE. We could set up a time and I can see what codes if any are being set and what your voltages are.
 
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Old Sep 29, 2009 | 12:44 PM
  #5  
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From: A mile high
Nice

Originally Posted by 87 F-150 I6
It sound like an alt problem, can you take it off and load test it?

Where are you located, I live in Parker and have AE. We could set up a time and I can see what codes if any are being set and what your voltages are.


I live in Lakewood, what part of Parker, North or South end, closer to I25 or Parker Rd?
 
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Old Sep 29, 2009 | 12:47 PM
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I live near the rec center in Parker so basically in the middle. PM me and we can set up a time to meet up.
 
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Old Sep 29, 2009 | 01:18 PM
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Way to go Andrew.
 
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