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lightning bolt flashing truck at idle?? 2003 quad cab ram 5.7 lt.

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Old 12-11-2006, 09:05 PM
bobcat2320 bobcat2320 is offline
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Default lightning bolt flashing truck at idle?? 2003 quad cab ram 5.7 lt.

The other day going down the road a lighting bolt starting flashing and the gas was acting funny, so I pulled over shut the truck off and started it and it was fine. Took it to Dodge Company they said it was the Air filter which was just changed. So they changed it and a week later it happened again only the gas was doing nothing. I shut it off and then would not start. I had to take the key out of the ignition and then start it and it was fine. Any clues????
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Old 12-11-2006, 10:01 PM
osteodoc08 osteodoc08 is offline
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Default RE: lightning bolt flashing truck at idle?? 2003 quad cab ram 5.7 lt.

The lightning bolt has to do with your charging/electrical system. I'd take the alternator off and have it bench tested. Also bench test your battery. Most OEM batteries are good for 3 years or so.
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Old 12-16-2006, 02:02 AM
bigfrigginbug bigfrigginbug is offline
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Default RE: lightning bolt flashing truck at idle?? 2003 quad cab ram 5.7 lt.

I had a similar indication happen in my O6 5.7 - the manual said it was a warning sign for the Electronic Throttle Control system. A steadily illuminated light indicates a problem, but its still driveable. A flashing light requires attention ASAP.

Mine started flashing as it was idling, and the idle was jerky and rough. When I drove away, there was no throttle response at all - I just idled out. I managed to get back home (obviously hadn't gone far), then shut the engine off and restarted it, and it was fine. There have been no problems since. I was going to start a thread to see if this was a problem out in Hemi land.

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Old 02-13-2007, 12:33 PM
bridogr1 bridogr1 is offline
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Default RE: lightning bolt flashing truck at idle?? 2003 quad cab ram 5.7 lt.

I have had the same thing happen in my 2003 Ram 1500 but it continues to happen. It will only happen once in a day then I won't see it for a while. Like others have mentioned if I just turn the truck off and back on the light goes away. Does anyone have any ideas on what the problem could be? I am getting ready to have a mechanic look at it, but I want to know if he is blowing smoke or if he is actually fixing something that might be broke.
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Old 02-14-2007, 04:31 PM
emllik00691 emllik00691 is offline
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Default RE: lightning bolt flashing truck at idle?? 2003 quad cab ram 5.7 lt.

clean your throttle body it happend to my 04 hemi and i fought with the dealer and they ended fixing it for free after they diagnosed it wrong
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Old 06-17-2007, 11:36 PM
itsmejto itsmejto is offline
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Default RE: lightning bolt flashing truck at idle?? 2003 quad cab ram 5.7 lt.

There's a recall for that, needs reprogramming
http://195.125.241.148/support/flyer/fl0804.htm
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Old 06-18-2007, 12:57 AM
kenihemi kenihemi is offline
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Default RE: lightning bolt flashing truck at idle?? 2003 quad cab ram 5.7 lt.

The lightning bolt is limp mode. It puts the truck in a mode that has very little throttle so you can still drive it to the dealer.

Many things will cause that, but I've never heard of the charging system causing it.

With my turbo and tuners, I've set that light many times.
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Old 06-18-2007, 01:26 AM
Max00racer Max00racer is offline
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Default RE: lightning bolt flashing truck at idle?? 2003 quad cab ram 5.7 lt.

Quote:
ORIGINAL: osteodoc08

The lightning bolt has to do with your charging/electrical system. I'd take the alternator off and have it bench tested. Also bench test your battery. Most OEM batteries are good for 3 years or so.
My trucks an 03' and last time I was at the dealer for my rear end they said a cell was bad and they wanted to replace it for like $150. I said no thanks. 4 months later and its still fine.
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Old 06-18-2007, 01:59 AM
marv54 marv54 is offline
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Default RE: lightning bolt flashing truck at idle?? 2003 quad cab ram 5.7 lt.

My 04 Ram did the same thing lightning bolt started flashing very little throttle response, I would shut off my truck and would run fine. Lucky for me Im a mechanic and I have a scanning tool, it told me the map sensor voltage was high. Replaced the map sensor and no more problems. From whan i see in this fourm Lots of guys are having the same problem. By no way am i saying that is going to fix your truck it could be any number of things,but it sounds like the same symptoms. Hope this helps ya out!
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Old 06-18-2007, 01:49 PM
Duso02 Duso02 is offline
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Default RE: lightning bolt flashing truck at idle?? 2003 quad cab ram 5.7 lt.

On my '03 Hemi, the only lightning bolt is the ETC. I don'tknow howit has anything to do with a battery. You won't even have a lightning bolt on a 4.7 since they don't have the ETC.
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Old 06-18-2007, 01:49 PM
 
 
 
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