1st Generation Dodge Cummins 89-93 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with Rotary Injection Pumps

2 questions: fuel mileage and overdrive

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  #11  
Old 12-31-2010, 06:31 PM
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Default Thanks Mark

Going to have a friend at Odessa Diesel work on this Monday morning, upsize my pipes to 4" and then get the DOT inspection and hit the road...IF all goes well.

Thanks MUCH again.

Richard
 
  #12  
Old 12-31-2010, 06:50 PM
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thank you so much ! that is some great info! i would like to hear some details on the potentiometer though in case i ever need it.
 
  #13  
Old 12-31-2010, 07:14 PM
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elalr, I believe there is a techncal posting on it somewhere on this forum.

Mark.
 
  #14  
Old 01-01-2011, 12:06 PM
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the throttle posi sensor was a big problem in alot of these trucks. mine was in to the dealer a good 50 times in the 1st 3 years of ownership for kicking out of OD. they tried saying we had too heavy of a boot on. the crap they came up with was priceless. they finally figured it out and fixed it in half an hour for 18 years. when i put my fuel pin in 1 weeks ago it started doing the same. i had had the sensor off to get the pin in and it had silicon on the bottom of it. i pulled it off, cleaned the bottom of it, made sure the plug was in right and have not had a problem since.

try taking it off and making sure everything is clean and on properly. i looked into one and they want 400$ for one so its worth a shot
 
  #15  
Old 01-01-2011, 01:24 PM
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i will try that. oreilly wants $314 for one. this truck is gettin expensive.... i got 1800 in the truck, 58 in exhaust 175 + 40 (to mount) in a set of bad to the bone mud tread studded snow tires, 70 in an idler that i didnt need, 550 in an ac compressor and ball joints, a few bucks worth of lights, and 150 in a windshield!!! i lil more than i expected to spend. BUT...i have a truck that i shouldnt have to do much to for a while.... i hope. my 05 needs about the same amount of attention and the 93 parts are so much cheaper. I want another 1st gen. already!
 
  #16  
Old 01-01-2011, 10:03 PM
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i hear that man.

when i started with mine i expected it to be cheap. spent 450 on a box and new fender liner...50 on a back rack... couple hundred on CB equipment...couple hundred on lights...not to mention upper/lower ball joints/new locking hubs/all new brakes/new tires and rims/stacks etc etc. im in deep with it now but its totally worth it. i can blow past all the ricers and burn holes in the ozone at the same time so im happy
 




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