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Old 02-18-2016, 11:39 AM
95ram 95ram is offline
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Default New pickup

I bought an 03 SO yesterday and have some questions. I towed my 98 home on the gooseneck and this thing is gutless. I realize it's an SO but I could only do 67 MPH on the way home and as soon as I hit an incline it would start slowing down. I also only got about 8.5 MPG. Does this sound right? Previous owner says he replaced lift pump (still on block) fuel filter and changed oil with in last couple thousand miles. Otherwise it seemed like a nice pickup and it only has 65k miles.
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Old 02-18-2016, 05:17 PM
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Nice looking trucks!
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Old 02-18-2016, 09:01 PM
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MnTom MnTom is offline
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First of all, sharp looking truck! Now, that truck should have more than sufficient power to pull that trailer with no problem. Since you didn't say anything about it missing when you ran it then I am thinking along the same as you are. It is a fuel related problem. The previous owner says they changed the fuel filter in the last "couple thousand" miles. Maybe they did, and maybe they didn't, I don't know. That would be the first thing I would try. Then it is possible that the lift pump is not functioning. You can click on the DOWNLOADS link from the main page, then click the SHOP MANUALS folder and download the 2003 service manual. It is possible that the CP3 may be having problems too by not producing enough rail pressure and that would cause low power and poor mileage. Do you know anyone with a scan tool that can see the rail pressure? Have you scanned it for codes?
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
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Old 02-19-2016, 07:01 AM
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Sweet looking truck(s).
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2006 Dodge Ram, 2500, Big Horn, 5.9 Cummins, 4x4, Q/Cab, 48RE, L/B, 3.73, S&B CAI & Snout, ProFlo 5" S/S exhaust, Smarty Touch, Oil ByPass Filter Kit, Transfer Flow 56 gal tank, 110 gallon in-bed tank, XX-Fuel System, Coolant Bypass Kit, Mag-Hytec front & rear, 285 x 70 x 17

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Old 02-19-2016, 03:05 PM
95ram 95ram is offline
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Thanks for the compliments.

Tom, I did some more reading and it seems the mileage and power aren't to far off. I drove it yesterday for a short trip and it feels like it has plenty of power and the overhead wish meter was showing 19.7mpg at 55mph. I think this anemic 250HP engine needs a little something to help it out. All of the driving was from Bismarck east into MN. there were a number of hills that the trans would kick down so a majority of the trip was 2000rpm.
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Old 02-19-2016, 03:15 PM
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It looks like it's a 3500, is it ? Is the rear end a 4:10 ratio ? Auto/Manual ? If auto, was it in O/D or not when pulling ? Somemore info could help. I know a few with 3500's and they do have a little lower mpg than the 2500's. And as you said, hills, they don't help either. I know others don't like doing this, but when I check mpg's, I cap the tank to actuall see the liquid level before the run and cap after to know I have the same level before hand calculating. The lie-o-meter is always wrong.
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2006 Dodge Ram, 2500, Big Horn, 5.9 Cummins, 4x4, Q/Cab, 48RE, L/B, 3.73, S&B CAI & Snout, ProFlo 5" S/S exhaust, Smarty Touch, Oil ByPass Filter Kit, Transfer Flow 56 gal tank, 110 gallon in-bed tank, XX-Fuel System, Coolant Bypass Kit, Mag-Hytec front & rear, 285 x 70 x 17

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Old 02-19-2016, 07:58 PM
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I would have a hard time with 250 hp! Mine is putting 365 hp to the ground and it still could be more! Running 2000 rpm were you running 70 mph? I know with mine towing my fiver (way more wind resistance) I get about 14 running 55 mph, 12 running 65 mph and 10 at 70 mph. Sounds like that truck can use a programmer!
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
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Old 02-20-2016, 05:46 AM
95ram 95ram is offline
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Quote:
Originally Posted by anoldbiker View Post
It looks like it's a 3500, is it ? Is the rear end a 4:10 ratio ? Auto/Manual ? If auto, was it in O/D or not when pulling ? Somemore info could help. I know a few with 3500's and they do have a little lower mpg than the 2500's. And as you said, hills, they don't help either. I know others don't like doing this, but when I check mpg's, I cap the tank to actuall see the liquid level before the run and cap after to know I have the same level before hand calculating. The lie-o-meter is always wrong.
It's a 3500 dually with 3.73 and AT. I haven't done the fuel tank vent mod yet so topping off is about impossible. Once I get that done I'll have a better idea.

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Originally Posted by MnTom View Post
I would have a hard time with 250 hp! Mine is putting 365 hp to the ground and it still could be more! Running 2000 rpm were you running 70 mph? I know with mine towing my fiver (way more wind resistance) I get about 14 running 55 mph, 12 running 65 mph and 10 at 70 mph. Sounds like that truck can use a programmer!
It sits at about 2000 rpm at 70. It and the 98 will be going to the trans shop next week to have all the internals of the trans switched between the two. Then FASS and Smarty touch. Later this summer injectors, turbo, and new CP3 or Arson kit depending upon injector size. Main thing is to be able to tow with it.
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Old 02-20-2016, 08:35 AM
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Quote:
Originally Posted by 95ram View Post
It's a 3500 dually with 3.73 and AT. I haven't done the fuel tank vent mod yet so topping off is about impossible. Once I get that done I'll have a better idea.
It sits at about 2000 rpm at 70. It and the 98 will be going to the trans shop next week to have all the internals of the trans switched between the two. Then FASS and Smarty touch. Later this summer injectors, turbo, and new CP3 or Arson kit depending upon injector size. Main thing is to be able to tow with it.
I sometimes wish I had 3:73 gears for towing. Sounds like the 3500 is a pure stock truck! What trans shop are you going to? Are you planning to do most of the work yourself? Sounds like you are going to have towing beat when you get done!!
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1996 RAM "Custom Ground" 100 plate 3/4 forward, 300 injectors, 16.5 timing, Goerends Auto = 365HP, 833TQ Third Gen Rims, Aluminum Headache Rack
Duct Tape can't fix stupid, BUT it can muffle the sound
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Old 02-20-2016, 08:49 AM
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Ok guys, I'm a bit slow and thought the HP was more for that year, but after looking at the 03 FSM, it said:
auto / 5 sp mt
235 hp @ 2700 rpm ~ CARB
250 hp @ 2900 rpm ~ 49 States

95ram, please keep us up to date on progress.
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2006 Dodge Ram, 2500, Big Horn, 5.9 Cummins, 4x4, Q/Cab, 48RE, L/B, 3.73, S&B CAI & Snout, ProFlo 5" S/S exhaust, Smarty Touch, Oil ByPass Filter Kit, Transfer Flow 56 gal tank, 110 gallon in-bed tank, XX-Fuel System, Coolant Bypass Kit, Mag-Hytec front & rear, 285 x 70 x 17

We the people are the rightful masters of both Congress and the courts, not to overthrow the Constitution but to overthrow the men who pervert the Constitution.
~ Abraham Lincoln
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