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Dodge Ram Cummins Diesel Questions

647 messages,  Last post on Dec 04, 2009 at 5:09 PM

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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#639 of 647
Re: 2009 Dodge Diesel [thedesertraven] by kcram HOST
Nov 09, 2009 (12:18 pm)
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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 647
Re: What year Dodge Cummins gets the best mileage? [ramcharger] by kcram HOST
Nov 09, 2009 (12:27 pm)
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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 647
crankcase breather smokin by yammerman
Nov 11, 2009 (12:48 pm)
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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?
#642 of 647
Re: crankcase breather smokin [yammerman] by mckenzie101
Nov 12, 2009 (5:22 am)
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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.
#643 of 647
lack of power by thimes
Dec 03, 2009 (10:16 am)
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my 2002 3500 has no power when it is cold out side but in the summer it runs fine what can I do about it or what could be the couse
#644 of 647
Re: What year Dodge Cummins gets the best mileage? [kcram] by ramcharger
Dec 03, 2009 (5:10 pm)
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Replying to: kcram (Nov 09, 2009 12:27 pm)

Kcram, went to S.Dakota hunting and thought would share with you my fuel experiesnce. I too have an automatic in my late 04. Sounds like identical trucks. I think 3.73 's. About 2grand at 70. Going out two tanks of fuel, 65 mph just under 15mpg. filled up with #1 diesel out there and drove around 450 miles and refueled with #2 (regular diesel) to head home. Picked up speed to 72-74 and got almost 18 mpg,, both tanks. Now as for 55 I see it going by on my way to 70 and on my way back to stop. I have not put enough miles on the truck on the last tank of fuel I got when I got home to see if the milage has stayed up. I can't explain it.
   I would like to put a chip on it but not sure the investment would pay off. I have all the power I really need, and it would take a lot of miles to pay for it if I only got one mpg more.
#645 of 647
Dodge ram diesel noise? by zorba1
Dec 03, 2009 (7:30 pm)
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when at idle my 96 Diesel Dodge make a "Click" noise now about every 6 or 7 seconds from under the hood?
Runs great and has good voltage etc?What is it?
#646 of 647
2005 5.9 3500 4X4 by 1goat
Dec 04, 2009 (5:04 am)
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I recently was pulling a trailer when my truck began to vibrate excessivly and my fuel milage plumitted. About 100 miles to half a tank!! Also had alittle trouble picking up speed. I have went as far as to bleed water of and changed out fuel filter but the problem continues to exist. This stated right at the 100K mile marker on my truck. Any thought's or suggestions?
#647 of 647
Re: What year Dodge Cummins gets the best mileage? [ramcharger] by kcram HOST
Dec 04, 2009 (5:09 pm)
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Replying to: ramcharger (Dec 03, 2009 5:10 pm)

Best things I've found for keeping mileage up are:
 
- properly inflated tires... and this does not mean running max PSI. LT tires should be inflated only to the load they'll actually be carrying
- keeping the air and fuel filters changed regularly
- using a quality grade of fuel... you absolutely have to stay away from small neighborhood stations where the diesel may be in the ground tank for months on end
 
kcram - Pickups/Wagons Host

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