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Go Back   Dodge Cummins Diesel Forum > 07.5 - 09 6.7 Liter Cummins > 07.5 - 09 3rd Gen 6.7L Powertrain
07.5 - 09 3rd Gen 6.7L Powertrain Discussion of components that are directly involved in the power production and all that is needed to get and keep the truck moving . Engine, Transmission, etc...NO ADVERTISING

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Old 04-03-2013, 11:27 AM   #1 (permalink)
GCH
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Red lightning bolt is on?

It's been coming on while driving some and have talked with other owners who have seen theirs come on but everything works fine. What it the light and what would be the problem?
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Old 04-03-2013, 03:35 PM   #2 (permalink)
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I have the same problem and been wondering what's causing it. Subscribed
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Old 04-03-2013, 03:44 PM   #3 (permalink)
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The lightning bolt is typically related to the throttle valve. What modifications have you done to your truck?
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Old 04-03-2013, 04:09 PM   #4 (permalink)
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Mine got full deletes included the throttle valve, and running efi for tuning.

Last edited by bignastydodge; 04-03-2013 at 04:10 PM. Reason: Spell
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Old 04-03-2013, 04:14 PM   #5 (permalink)
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Mine has the DPF delete and the EGR unplugged with minimax tuner and Trans software.
Could this be a problem, it seams to run just fine?
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Old 04-03-2013, 06:33 PM   #6 (permalink)
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When I had that problem it turned out to be a bad battery. You should have them load tested. Also, be sure connections are good. I'll bet that's your problem since everything else appears to be working OK.
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Old 04-05-2013, 10:26 PM   #7 (permalink)
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i was losing my alternator when mine came on. also had it come on, when an injector fried open.
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Old 04-05-2013, 10:47 PM   #8 (permalink)
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I was going through the same issue with my rig, but my voltage would stay at only 11.3 or less. Here is what fixed my issue. All terminals cleaned and tight, also

Quote:
Originally Posted by dozer12216 View Post
Another wierd possibility. Over charged memory in computer.. With ignition key in pocket. Take ALL battery cables loose and away from their terminals. Now hold a positive cable against it's negative brother for 30 seconds or so. This will delete all stored memories (bad ones especially). Yes you lose radio memories also. Reinstall all cables before removing keys from pocket.
After i did the battery trick i have been up and running like a champ. Above quote was from a thread i had made about odd voltage issue. Hope this helps you out also
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Old 04-06-2013, 10:48 AM   #9 (permalink)
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Battery issue most likely. Replace in pairs.


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Old 04-06-2013, 12:53 PM   #10 (permalink)
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Was some bad wires for the APPS when I had the lightning bolt.


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Old 04-06-2013, 11:22 PM   #11 (permalink)
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Make sure your battery cables are tight
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Old 04-06-2013, 11:55 PM   #12 (permalink)
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when mine has came on my truck goes to limp mode the exhaust pressure sensor will cause that light as well found that out last wkd its not just electrical good luck
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