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Dodge Ram Cummins Diesel Questions

642 messages,  Last post on Nov 12, 2009 at 5:22 AM

You are in the Dodge Ram Forum. Your Host is kcram

What is this discussion about? Dodge Ram Pickup 2500, Dodge Ram Pickup 3500, Diesel, Truck

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#633 of 642 Re: 04 2500 ram pull start only [gast] by mckenzie101 Oct 15, 2009 (4:42 am)
Replying to: gast (Oct 14, 2009 4:51 am) My guess is a Cam or Crankshaft position sensor. By pull starting it you my be turning the engine over faster than the starter therefore allowing the sensor to read and communicate with the ECM. This is just my guess. Let me know what you find out...   Randy
#634 of 642 cummins smokin by warlord3 Nov 06, 2009 (5:36 am)
last week our 08 3500 started smokin, black, huge clouds, and progressively worsened with a tapping or clicking from engine. replaced an injector from cummins, but no change and looked like now fuel in oil. pulled replaced injector and one next to it for compare and they are different size at seals. Also looked at the modulator valve on top of charge air piping and it was completely garbaged with soot and not closing completely. suggestions?
#635 of 642 change over exhaust by rightairwing Nov 06, 2009 (3:54 pm)
is it any way to get rid of the epa stuff on the 6.7 (2008 2500)?i don't care about the warranty any more.this thing has had the cheeck engine light on so many times i lost count.it has been the exhaust system every time.it has only 13,000 miles on it.i am ready to get the buy back thing going with it.i heard that it was a kit that you can get to get rid of this problem.IE remove the stock exhaust system.any info on this kit is welcome.
#636 of 642 Re: 2009 Dodge Diesel [kcram] by thedesertraven Nov 08, 2009 (3:36 pm)
Replying to: kcram (Mar 11, 2009 4:28 pm) How do you know a new, or newer D2500 4x2 with the right options, 6.7L will "easily do mid 20s highway"? I've been shopping for the last of the 5.9 models, 2004-07 with the 325hp motor in an attempt to get the best stock power and economy. But I'd gladly buy a new or newer one if I knew it could get the xlnt mileage of an older 5.9. Please advise, because most of the forum talk is against the newer 6.7, both on mileage and reliability issue. By the way, my friend has an early 2004 D3500 dually 4x2 w/ 4.10 rear, an Edge plug in module, and it gets the best I've ever seen, 23.4mpg at 65mph easy going freeway. Thanks. Replies to this message: kcram (Nov 09, 2009 12:18 pm)
#637 of 642 What year Dodge Cummins gets the best mileage? by thedesertraven Nov 08, 2009 (3:45 pm)
I'm not preferring an older one, say pre-2003 body style change, I've had many of those already, but I want to get a new or newer one that gets the best mileage. And I LOVE my friends early 2004, it's a 6 code(the eigth digit of the VIN is the engine code) with the 305hp, a D3500 quad cab dually long bed, 4.10 rear end, an Edge chip, and is just the smoothest, strongest running thing you could imagine, and great mileage, up to 25 on the freeway at easy, easy cruise. I've heard so much bad about the newer 6.7, and all the added smog stuff, and I DO know my newer Winnebago motorhome gets easily 15% less mileage with its post-2007 diesel engine technology. So I'm thinking 2003-07 might be my best best. Again, I'm easy driving, so MILEAGE is my number 1 concern. What is your experience? Replies to this message: ramcharger (Nov 08, 2009 6:22 pm) kcram (Nov 09, 2009 12:27 pm)
#638 of 642 Re: What year Dodge Cummins gets the best mileage? [thedesertraven] by ramcharger Nov 08, 2009 (6:22 pm)
Replying to: thedesertraven (Nov 08, 2009 3:45 pm) What you smoking? I have a 04 3500 4x4 with 3.73 gears and can't get 15 mpg with a til wind. It has power, runs good , all that but poor milage. Are you using the built in measure system or your own calculator? They EXAGERATE. But the new Dodges sound like real problems. I am leaning toward a Chevy 4x4 dually mostly for the independant front end. Replies to this message: kcram (Nov 09, 2009 12:27 pm)
#639 of 642 Re: 2009 Dodge Diesel [thedesertraven] by kcram HOST Nov 09, 2009 (12:18 pm)
Replying to: thedesertraven (Nov 08, 2009 3:36 pm) It's the axle. Your friend has a 4.10 - the worst axle for fuel economy. Dodge offers a 3.42 with both the manual and automatic... get a Cummins with the 3.42 and the 68RFE automatic (with the double overdrive) and you would have no trouble getting 25+ mpg.   kcram - Pickups/Wagons Host
#640 of 642 Re: What year Dodge Cummins gets the best mileage? [ramcharger] by kcram HOST Nov 09, 2009 (12:27 pm)
Replying to: ramcharger (Nov 08, 2009 6:22 pm) I have a 2005 3500 Quad Cab 4x4 dually with the Cummins, 48RE, and 3.73s. At a steady 55 mph, I have no trouble reaching 21 mpg (real, not from the overhead readout)when the truck is empty.   You didn't mention which transmission you have, and that will make a difference, as the automatics have a more economical overdrive ratio than the manual (either NV5600 or G56). You also need to keep an eye on your air and fuel filters as well as your tire pressure, and make sure you use a good grade of diesel. While the engine will run on cetane of at least 40, if you can find higher (42 and up), the engine will be much happier. I definitely get better mileage with 42 over 40. Also be careful where you buy fuel... a small local station that might not sell much diesel runs the risk of fuel contamination underground; a station that sees a lot of heavy truck traffic and turns over fuel more often is the place to go.   kcram - Pickups/Wagons Host
#641 of 642 crankcase breather smokin by yammerman Nov 11, 2009 (12:48 pm)
I have a 2003 2500 cummins and its been a year now since I've bought it and the whole time I've had it the crankcase breather hose smokes excessively. It's not exhaust, or at least it dosnt smell like it, and it's not oil burning. I dont notice other diesel pickups doing this so it must not be normal. I have my trusty Hanes manual(worthless) and it tells me that I can change the crankcase breather but dosent tell me why the excessive smoking...ie what the problem is. I dont know if changing the breather will even help. I consulted a local diesel shop over the phone and they said it sounded like a piston was scored or something--- sounds expensive and i'm hoping its just a simple fix, not somebody trying to screw me out of money. Any suggestions? Replies to this message: mckenzie101 (Nov 12, 2009 5:22 am)
#642 of 642 Re: crankcase breather smokin [yammerman] by mckenzie101 Nov 12, 2009 (5:22 am)
Replying to: yammerman (Nov 11, 2009 12:48 pm) Yammerman, the smoke you see is most commonly called "Blow By". It's a sure sign that you have trouble coming. Sometimes it is water in your oil and the smoke is actually steam caused by the oil heating up and evaporating the water. You may only need a head gasket replaced or worse case a complete overhaul. Monitor your water to see if you are losing any and keep your oil changed more often. Also keep a close eye on your oil pressure. Depending on how severe the smoke is, you may be able to drive it for a long time by just changing the oil more often.

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