Hi Guys
Im Back. the dodge still stalls when warms up. I have changed the TPS, Crank sensor, Mass airflow sensor, Temp sensor, Ignition Coil, Fuel Pump, Had the ECM checked and updated, Choke assembly, Tune up, and it has no codes showing. Need help guys, wife is going to cut my boys off if I don't get this running this week. I have a 5.9 L Magnum engine. the car is a 1999 Dodge Durango.

 

what do you mean by choke assembly, there is NO CHOKE on these trucks, they are fuel injected

 

Sorry the Air intake Valve assembly, Not sure of the correct name.

 

Hey Guys what about a pickup coil in the distributer?

 

how about a low pressure on the fuel pump ? have you check it ?

 

sounds to me a lot like the o2 sensor isnt giving out proper readings (until the engine warms up the 02 sensor readings are ignored, once warm those readings are used to control the a/f mixture for better fuel economy)

 

The engine runs nice until it gets hot then it is like someone has turned off a switch. I installed a new fuel pump and had the same problem. I have never head of a 02 sensor doing this. I could see if the engine was running poor but it runs good. I am thinking mayb the pickup coil in the distributer may be overheating and braking down. I have put so much money into this car I am starting to think I am flogging a dead horse My wife really needs this truck, but I don't know.

When this first started it would only happen once and a while but now if you leave it running for over 15 minuets it will turn off. changed almost everything and wondering if it could be wiring?
Really need help on this one guys.

 

just bc you havent seen it doesnt mean its not possible, and since the o2 sensor controls the a/f mixture, if its not getting a reading the computer will not know what to do once the engine is warm, you could start checking the wires for the pre cat o2 sensor going back to the pcm, with all the parts that you have thrown at the problem i would have thought you already checked EVERY SINGLE electrical connection, but if not i would do that too.

 

Yes I have checked all connections and plugs. I did this before I sent out the computer.

 

I see you have replaced the coil that would of been my guess.
You might try and build a heat shield around the PCM with tinfoil for a test and see if it helps. some times solid state electrical parts will open a circuit when hot.