6.7L Cummins Forum

OK I have an 09 and am approaching 12,000 miles. I use my truck 99% of the time towing my toy hauler.

What will happen if I disconnect the egr. Will Dodge know when I take it in and also will the cel remain on once it is reconnected. Does this potentially put my warranty at risk?

I would like to try a test particulary if I should get better mileage.

What do you think?

They won't know and the CEL has like a 4 cycle clear so after you reconnect it it should disappear after your 4th start or so. We have some members that are running it unplugged. Since I rarely drive in town I left mine alone.

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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

I mailnly drive in mountainous terrain and rarely in town however, the price of fuel is sneaking up once again and if it is true that you can capture another 1 or 2 miles to the gallon that could be a positive.

Are there other issues that could be of a concern regarding damaging any components or other considerations?

What are the benefits of disconnecting the EGR? Are their any disadvantages w/ disconnecting it? Does it make the truck louder, smoke (can't see any smoke as of yet) I drive my truck 99% of the time in the city and every once in a while I tow my 25' T.T. to state parks which range from 2hrs. to 8hrs. on a one way trip.

One positive is no recirculated soot into the intake which will keep everything much cleaner including the engine oil. Also, by not allowing the super heated soot into the intake tract, this will keep inlet temperatures lower which will increase mileage and performance. The only negative I can think of is the cel may get annoying after a while.

I found that unplugging the EGR was good for 1.5 to 2 mpg, Imperial. Gutting the air intake tube and cutting a 4" hole in the bottom of the stock air box, was good for another 2 mpg. I have been running my truck with the EGR unplugged for 100,000 KMs. I saw no loss of power as some have claimed. The oil stays noticeably cleaner and there was an increase in throttle response.

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2007 Ram 2500 QC 4x4 SLT TRX4-Offroad 6.7L Automatic. '08 Jeep WK 3.0L diesel-wife's DD.
1998 Jeep ZJ 4.0L Automatic Selectrac-project for our son. '98 Jeep XJ-my wife's former DD.
1965 Dodge Polara 880 Convertible 383 Automatic.

Us 2007 owners have gotten use to the CEL...............

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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

What is the "CEL"? Does it make the truck sound louder when idling and or driving? Will unplugging it help save on fuel both for city an Hwy or just one of the two??

Check Engine Light

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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 curious Squid, how many cel's have you had and how many trips to the stealership have you made since purchasing the truck?