My Durango has a problem since 1 year before:
The truck runs xcellent but when it's hot begins to fail, (3-8 times at day)the truck is just running and turned off ,
but ONLY when i'm not pushing the accel pedal because when I feel the engine failing I push the pedal and keeps running,
When is off I just move the gear to neutral or parking and the engine start again,
When the truck is in the garage, running in idle, after 10 minutes since I started, it begins to fail, the engine tremble and try to stop but after few seconds keeps in idle again,
but after that(all the time!!) the CHECK ENGINE light turns ON, and send the codes P0135 and P0138 , about the 02 sensors heater,
The 02 sensors are new(twice)
has new spark plugs, wireset, dist, cap and rotor,
I didn't replace the fuel pump because I've checking the pressure when the car is in idle or running and when begins to fail the pressure never get low.
And I found in the PCM connectors some little corrosion, but I cleaned and after that I feel the engine better(just a little bit)
!!SOMEBODY CAN HELP ME????
Really I don'k now what to do.

Thanks

Petercantropus

 

I had the same problem with mine, but I read in another thread that it can be caused by the IAC. (Idle air control) So I replaced that, cleaned the throttle body with some carb cleaner and I haven't had the issue since. Truck idles like a dream now.

 

IAC is a start, but a bad battery in these trucks can cause all kinds of problems, so if the battery is 3-4 years old or more replace it, it could help, and IAC, or the throttle position sensor could also be the culprits

Hope that helps

 

I would start with the IAC first=I would do as Jmod said above.
Does the truck start putting blue or black smoke after an extended idle?
Check all ground wires and make sure the battery terminals are clean and use a multimeter with ohm/continuity function to make sure the grounds etc are good=disconnect the negative and positive terminals first.
It maybe a problem with a sensor=sounds like the problem starts when the computer goes in to"closed" loop=it should be throwing a code though=check to make sure your engine mil light works=should light up for a second while starting the vehicle or with keyswitch on.

 

My money is on the signal to the PCM or a failing PCM when it heats up.

IndyD

 

One or the other I would assume. Also the air charge sensor might be to blame.

Clean that TB first!

 

I looked up those codes and sounds like you probably have a short or a broken wire= you can buy a cheap wire tracer at harbor frieght tools or make some extended leads for a multimeter with continuity function=if the harness checks out then it's probably the computer<put some dielectric grease into connector you found the corrsion in.
P0135 (M) 1/1 O2 Sensor Heater Failure Oxygen sensor heater element malfunction
P0138 (M) 1/2 O2 Sensor Shorted To Voltage Oxygen sensor input voltage maintained above normal
operating range.