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Yesterday out of nowhere I threw a CEL P0732(Gear Ratio Error in 2nd) and the truck went into limp mode. I did a one time reset and of course it came back. I also got P0734("" in 4th) and P0733("" in 3rd) today after driving it gently a bit. I have a tuned truck, and do a decent amount of boat...

I have a 2014 6.7L both EGR and DPF deleted but today out of the blue today I got a P0472(Exhaust Pressure Sensor A Circuit Low) and a U029D(Lost Communication with NOX Sensor 'A'). Then the truck went into limp mode and I had a heck of a time getting home. Aren't both of the sensors involved...

I bought an EGR Delete Kit(https://www.ppei.com/shop/2009-2018-cummins-egr-cooler-upgrade-kit/) and a Turbo Back Exhaust System(https://www.ppei.com/shop/2013-2018-5-dodge-aluminized-race-exhaust-no-muffler-no-tip/) and it seems pretty straightforward to install based on my expertise. However...

So I wanted to install a quick connect plug to use for my hitch mount winch and jumper cables so I bought a kit from Amazon that has a 6 foot run from the battery to the plug, then a 30ft run from quick connect to jumper cables. I cut a small piece of metal lip off under the driver door and used...

I pulled up to a fast food drive through and was in Drive with my foot on the brake and the engine sounded a bit "clackier" than normal. Then with no movement or anything on my part, the sound shifted to a less clackier sound and a very soft rumble that I can feel in the brake pedal if I press...

I'm not looking for an obnoxiously large exhaust tip or something that's gaudy or sound changing, etc... I just feel like there's some "look" to be given rather than that matte steel colored piece of metal behind the tire. I was thinking of adding a black tip just big enough to make it over the...

I was just shown this plug in module and wondering if anyone has any technical knowledge to it such as how it works, if it's safe for the truck not being a program, etc... https://www.stealthmodules.com/collections/ram/products/ram-cummins-6-7l-13-19 Thanks for all of your insight in advance!

I found this website: http://www.cumminshub.com/6.7-cummins-maintenance-schedule.html in search for oil change information and had a few quick questions(assuming this website is accurate/reputable). Please note, I want to stay as close to factory recommended as possible. What brand oil is...

Good morning all, I come from the world of gasoline and am pretty familiar with bolt on mods in that realm, but not sure if(at all) diesel engines differ in terms of modifications. I'm looking to start with some easier mods in terms of fuel efficiency and performance for my 2014 2500 6.7L. I've...

Evening Folks, I had a 1500 EcoDiesel recently and mounted train horns directly under the fan shroud and an air tank/compressor under the passenger side. Since there is ZERO room under the engine between the frame on my 2500 4x4, has anyone mounted these? Found any spot for them perhaps? My...

I have power mirrors, and I was TOLD there are power folding mirrors but I don't have the button in the middle of the mirror adjustment buttons to fold them in. The other day though, I SWEAR I saw my mirrors fold out(I didn't realize they were in) on their own. Is there some setting or option to...

I bought some LED bulbs on Amazon and I'm having issues getting them to fit inside the Projector housing with the dust cover. The 9005 bulb I can't even get into the opening due to the fan on the back of it and the 9012 bulb will cause the dust cover to be unable to close/seal. Here's the bulbs...

Does anyone know how, if it's possible to switch out the map light bulbs? I didn't even see a bulb to replace in these things...

Hi all, New to the forums and also new to 6.7L Cummins trucks. Just bought a used with 107k miles 2014 2500 Longhorn. It appears to have a small lift(not sure how to determine) and 35" tires. When I'm at slower speeds(haven't had the opportunity to observe otherwise), I am hearing a...