My engine light came on the other night in my 99 dakota rt and i took it to autozone and got the codes P0740 and P0144 and took it back home....came back out to move the truck and the engine light was off so i took it around the block sped up to around 50 and lower speeds and it didnt come back on..what does this mean? Thanks

 

p0144 1/3 02 sensor shorted to voltage.
p0740 torque converter clutch no RPM drop at lockup.

Check the wiring to your oxygen sensors.

Do you see the RPM's drop when the tranny goes into OD?

 

alright i will and the truck is automatically in OD but RPMs do drop when i put it in either drive , d2, d1 or reverse from nuetral or park

 

The torque converter clutch is supposed to engage in 3rd and 4th. You may feel some slipping if it doesn't engage.

 

i do feel slipping, so could this be the torque converter itself or the tcc solenoid and how could i check for which it is?

 

It could be either.

The transmission can help diagnose the problem. With a DRB (dealer) it can report line pressures and any codes stored in the transmission control module. Line pressures should be checked at a minimum. The shift linkage should also be checked to make sure it is correctly adjusted and the bands may need adjustment.

If short, it needs a thorough going over before saying "this is it."

Has the code reappeared since?

 

nope it hasnt came back on since, but to make sure i get the problem im just gonna have it rebuilt