WHAT CAN CAUSE THE LOCKOUT NOT TO DISENGAGE?

  • Tiny
  • jthrse
  • 1999 Dodge Ram
  • 240,000 miles

I have a 99 Dodge Ram 2500 Diesel 4x4 (240000 mi)with an automatic transmission. The problem I am having is that the 4th gear lockout does not disengage. When I put it in gear it is like trying to move in 4th gear. It stalls a lot. I changed the lockout solenoids and it has not changed. I rerouted the coolant lines to see if that was the problem and it is not. Do you have another suggestion?

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Friday, September 30th, 2011 AT 1:00 PM

3 Replies

  • Tiny
  • mhpautos
  • Expert
  • 30,561 posts

Have you had a transmission diagnostic scan done, not all set codes will bring up the check light, the problem does sound electrical, I would start here.

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Friday, September 30th, 2011 AT 1:28 PM
  • Tiny
  • jthrse
  • Member

Yes a scan was done and no codes were showing.

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Friday, September 30th, 2011 AT 1:34 PM
  • Tiny
  • mhpautos
  • Expert
  • 30,561 posts

I would be thinking that the TTC is stuck on, I would get a trans specialist to check this first hand to confirm the diagnosis.

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Friday, September 30th, 2011 AT 1:38 PM

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