I just bought a 1996 dodge ram 1500 2wd 5.2l i went to inspection today to find out the low life I bought it from removed the check engine bulb and I have 3 codes PO135,PO711 and PO740 I need help determining what the second two codes are I already bought an o2 sensor for the first code?

also what is the proper procedure for checking the trans fluid is it done in park or neutral? when I check it in park it is very overfull and in neutral not even registering on the dipstick

 

P0711 Trans Temp Sens, No Temp Rise After Start

P0740 Torque Conv Clutch, No RPM Drop at Lockup

Trans codes. Wow, big surprise. Might be related to low fluid level.

Correct procedure is: Engine at operating temp, trans in neutral. (preferably, after having been driven a bit, make sure all passages are filled.)

If just getting the level correct doesn't help, check the 8 pin connector on the drivers side of the trans, 'bout halfway back. Make sure the wires aren't frayed, and it is plugged in good.

Welcome to DF!

 

Ok thanks where is the Temp sensor located

 

In the trans. It's actually part of the governor pressure sensor. If you have to go in there to replace it, (fluid and filter change too at that point) get the Borg Warner heavy duty replacement set. Electrical advantage sells 'em for around a c-note on ebay. Comes with pressure sensor, and HD governor solenoid.