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Dodge Ram MEGA CAB

51 messages,  Last post on Nov 28, 2008 at 12:01 PM

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#49 of 51 2007 Fuel Mileage by mckenzie101 Oct 12, 2008 (12:22 pm)
I have the 6.7L Cummins with all the emmisions crap on it. When the warranty runs out I want to take this stuff off (don't tell uncle Sam). Right now I have 40K miles on the odometer and I'm getting 14-16 mpg. I want to get 20-26mpg like the old 5.9 Cummins. Anyone know how I can improve my mpg right now???
#50 of 51 Re: Mega Cab A/C Miracle [kcox7] by flash46 Nov 07, 2008 (7:11 pm)
Replying to: kcox7 (Sep 11, 2007 4:21 pm) I have a 2007.5 Mega cab 6.7L and live in Dam Hot, Texas. I don't seem to have the problem you are experiencing. I always keep a blue-point thermometer stuck in the front center vent, just something I've always done. The air coming out is a cool 36-38 degrees with decent flow and it cools relatively quick. Note: I also have a mild "legal" tint job. Is it possible something has been sucked up the intake on the passenger side? I had an 04' Ram dually 4 door and had no problems until a piece of cellophane got sucked into the return and was blocking flow over the ac coil which caused it to freeze up lowering flow even more. I would have to turn ac off and leave fan on for 15-20 minutes before it would thaw and start flowing again. Hope you find the problem/fix as no ac definitely sux. Replies to this message: dustyk (Nov 28, 2008 12:01 pm)
#51 of 51 Re: Mega Cab A/C Miracle [flash46] by dustyk Nov 28, 2008 (12:01 pm)
Replying to: flash46 (Nov 07, 2008 7:11 pm) Some early build Mega Cabs had a problem with insufficient cooling capacity, and I think the fix was to increase the evaporator size as well as some internal design changes.   Dusty

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