12 Valve 2nd Gen Dodge Cummins 94-98 Discussion of 12 Valve 5.9 Liter Dodge Cummins Diesels with P7100 Injection Pumps

problem with high rpms at 65 or 70 mph

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Old Mar 10, 2011 | 09:49 PM
  #1  
whiteley's Avatar
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From: rusk, texas
Default problem with high rpms at 65 or 70 mph

I have a '95 dodge turbo diesel 5.9l automatic need to know how i can dropp my rmps. It seems like its got one more gear to get but not in gaugin. when i got the truck the guy told me that the torque converter wire was messed up. He has a toggo switch to switch to high gear. Could that have somethin to do with the high rmps. Any advice would help.
 
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Old Mar 11, 2011 | 11:57 AM
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Dieselfunohio's Avatar
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From: Bowling Green, Ohio
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I have the same problem with my 96 but i don't have a messed up torque converter. it's just the 4.10 gears with no load.
 
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Old Mar 11, 2011 | 12:07 PM
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From: Wapak Ohio
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its probaly your messed up converter
 
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Old Mar 11, 2011 | 01:03 PM
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Threesixty's Avatar
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From: Corpus Christi, Tx.
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How many shifts does it do? I have a manual myself, so don't know how many gears the autos have, but I think you should have 4 gears. And I think OD has a button on the dash that you're suppose to deactivate when towing stuff. But, I doubt anyone really does.....

Also, how fast are you going, and what RPM are you getting?
These trucks only go about 90mph.
 
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Old Mar 11, 2011 | 08:42 PM
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whiteley's Avatar
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When im runnin 70 it sits around 2400 rpms. I'm really not sure how many gears it shifts. It just sound like it should have one more gear???
 
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Old Mar 11, 2011 | 08:45 PM
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prison's Avatar
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From: Childress,TX
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i felt that in my 4 speed manual. i never could find that fifth gear. next time you drive count the shifts
 
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