6.7L Cummins Forum

Had the check engine light on my Dodge Ram 3500 come on with only 1700 miles on it and figured it was just the gas cap but decided to go ahead and find out how to pull the code and here's how.

Just turn the key from off to on 3 times and leave it in the on position the third time. The odometer will display any and all codes and when it's displayed them all it will show ------- and then it will say done. This post has pictures as proof it works. http://www.cumminsownerz.com/2668-post12.html

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10

cool info squid...

Why thank you! Hey I need better smilies..................

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10

Yea, way cool.

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http://www.frappr.com/iboats
"JUST KEEP ON, KEEPING ON"
"Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, chocolate in one hand, martini in the other, body thoroughly used up, totally worn out and screaming "WOO HOO what a ride!"

Could have saved myself a trip to the Big "D". Check light on, no drive concerns, dealer tech tells me, "your TPMS system was setting the Engine light to ON". Since when do tires cause the CEL to illuminate?

hey I tried this several times today since I had a code pop up. For some reason it doesn't work for me? I'm turning the key all the way to the off position to the on position not starting it, and doing this 3 times still nothing.

What year is your truck?

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2007.5 Dodge Ram 3500 HD,QC, 6.7L Cummins, 6speed Auto, 4X4, Bighorn Edition.
Click for installs: Carr Steps PML Diff Cover Edge Juice with Attitude Volant Intake Hankook ATM RF10

Just some food for thought.
I'm a mechanic and been in the game now nearly 20 years
I took a class a few weeks ago that covered EVAP systems.
The reason a check engine light will be lit with a loose fuel Cap on a Gasoline powered vehicle is due to The EVAP system (Charcoal Canister). and the newest computerized sensors detecting a leak of the gas fumes.
Back in the day when computers came out on vehicles, check engine lights were mandated by the EPA should something go wrong with the emissions system. Then the manufacturers added other codes or reasons
for check engine lights to come on in addition to emmisions.
However when it comes to Diesel it is combustable not flamable and should not have a EVAP system because as a general rule diesel does not evaporate
AKA no fumes. but i suppose the manufacturer could have put some kind of sensor that moniters if the cap is tight.
If i'm wrong someone correct me....

your Tire pressure monitering system should have its own light. Did it set both lights?
the dealer can also change your pressure default settings for the tire system
because some different tires/sizes require different pressures.
the dealor also told me that they will not re-program for different tire heights due to EPA rules.

I to have tried to retrieve MIL codes using the key on off 3 times method and I have not been able to get it to work! I have an 08 quad cab 4x4.

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08 2500 Quad Cab, Big Horn, Auto.,Volant CAI with Powercore, Auto Meter Boost, Pyro., and Trans Temp., Muffler Delete, 03 Crossroads Cruiser 30' 5th wheel.