Question about 1999 Dodge Ram

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1999 Dodge Ram 1500 5.9 Overdrive Not Working

I have a 1999 Dodge Ram 1500 5.9 4WD and the overdrive will not work. The gears shift fine from first to third. I have replaced the speed sensor on the rear differential and replaced the TCC solenoid on the valve body. Any help would be appreciated.

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  • Josh Terakawa
    Josh Terakawa Dec 09, 2014

    Thank you for your help. I actually fixed it a couple months ago by replacing my pcm. The previous owner had swapped a 2001 pcm into the truck, which works fine except for the transmission temperature reading. I took it to a transmission shop for a free diagnosis, and when they hooked up the scanner it was reading -14C when warm. Adding in-line resistors to trick the pcm into thinking the transmission was at operating temps did not work. I hope this helps someone who experiences a similar problem.



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  • Dodge Master
  • 513 Answers


Posted on Dec 09, 2014


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Posted on Jan 02, 2017

  • 2559 Answers

SOURCE: 1999 Dodge Ram 1500 2WD won't shift properly

Sounds like the speed sensor on the rear axle.

Posted on Jan 20, 2009

  • 1 Answer

SOURCE: transmission does not always shift into overdrive

Governor pressure sensor or solenoid is going bad. To replace them drop the tranny pan, remove the filter , and the parts are pretty ez to get to. These aren't cheep thou, but replace them as a set. Parts will probly run about $200.

Posted on Feb 20, 2009

  • 1 Answer

SOURCE: Trouble code P1740 on 1999 Dodge Ram 2500

I had the same code on my 2001 dodge 2500. The truck wouldn't shift from 3-4. I pulled the trans pan off and replaced a broken spring ($2.00). It is behind a thin plate with 3-4 small torq screws. You don't have to remove the valvebody. Only took me 45 minutes to fix.

I would like to give thanks to Jeff Russel from Teal automotive. He said this is a very common problem. He sells any part for any automatic Transmision and his prices are very affordable.
Here is a link to the website.

Hope this helps.

Posted on Jul 19, 2009

  • 1810 Answers

SOURCE: 1999 dodge ram 1500 2wd 5.2L gives different intermittent codes

pcm posably but i think i would look at the grounds from the battery to body and bat to engine

Posted on Jan 28, 2010

  • 302 Answers

SOURCE: i have a 1999 ram

The kickdown on transmissoin controls the up shift and or down shift by the throttle pressure it is out of adjustment.

Posted on May 21, 2011

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Transmission does not always shift into overdrive

Governor pressure sensor or solenoid is going bad. To replace them drop the tranny pan, remove the filter , and the parts are pretty ez to get to. These aren't cheep thou, but replace them as a set. Parts will probly run about $200.

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