No overdrive and Limp mode

Asked by Feb 17, 2017 at 07:17 AM

Question type: Maintenance & Repair

I got a dodge ram 2006 4 x 4 I was going
down the road and heard a pop and all of a
sudden my truck drops down a gear like I
pulled it down into second gear I did not
have overdrive on or tow/haul on.  Now
when I come to a stop and take off it's like
I'm taking off in high gear I can pull it all
the way down in first and shifting from 1st
to 2nd nothing happens but when I get a
sec it to drive it changes gears but then
when it's in drive it seems like it needs to
change to a higher gear after you get to 55
to 60 like the overdrive is not  coming in. I
check the codes and got a zero 750 and
0700 so I cleared the codes and nothing
happened. on the way home when I was at
a store, I  backed  up to the right and
pulled it down and drive and it seem to
work good up to the first couple hundred
yards and then I heard a like a pop again
and it started doing the same thing it's like
i have high range and 2nd.  I check the
fluid fluid is fine please help

6 Answers


Clearing codes does not fix anything at all. Take it to a good transmission shop.


The P0750 will be set when the Powertrain Control Module (PCM) detects a fault with shift solenoid “A.” The PCM controls the shift solenoid by commanding the solenoid when to engage and disengage. This fault will display a Check Engine Light on the dashboard and put the vehicle into a failsafe mode.


P0700 is set when the PCM detects a malfunction in the transmission control system. This malfunction causes the vehicle to set a Check Engine Light and trigger a failsafe mode. Once the failsafe mode is set it will remain until the fault is repaired or normal operation is detected.

I'm somewhat knowledgeable about mechanics but the newer vehicles of course are different. It I do feel very comfortable changing parts out of knowing what the cause is. In reading up on what it could be is ranging from Governor sylenoid, speed sensor, to even filter. I just didn't want to by 10 different parts to fix one thing. The Engine light is own but I just don't know if it's a where to start on electronic side of things


This is a job for a pro.

If it's just removing the solenoid.. I don't need a pro bif you have rebuild the transmission then yes

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