That's what I mean if one truck pulls hard and one doesn’t what is the difference between the two. It should be easy for a dealer to know this and fix it. I traded in the 3923s at Advance AP for 3922s and will install them this weekend. I so just want a normal ride like my payment book reminds me each month.

 

Gray, I wouldn't think it would be the fuel filters. It sounds like more of a program or sensor issue. I know you don't want to here this but the dealership can hook their computer up, run the snot out of your truck, and compare the readings to what the normal readings are suppose to be and hopefully pinpoint the problem. I know it can be frustrating.

Have you checked your IAT sensor? On a hot, humid day (everyday in the summer) my IAT is 20-30 degrees warmer than what it is suppose to be. My truck would become very sluggish. It was almost like the PCM would go into this "safe" mode. I moved my IAT sensor closer to the filter (CAI) and filled gaps in the heat sheild so engine heat would not be sucked in. I also changed my IAT sensor. It was only $12 with shipping. My temp is back down and my truck runs great. Of course the SC tuner helps out alot too.

 

The ITA on my truck is using the power wire. And yes I have removed it but it just made it worse. I thought about installing a variable resistor so I can experiment with values to fake the ECM even more that the air is cooler. My TB and air intake is all stock. In any case, I am leaning to a sensor or ECM value may be out of sync. I will make an appt at the dealer if the spark plug thing doesn’t help. Of course, dealers with their training and all the proprietary scan computers etc. seem to come up short more then anyone else on diagnostics. I’ll give them the benefit but I would consider it a miracle if they get it done, Thanks for the input always appreciated.

 

Have you tried resetting the PCM after removing the power wire? Long shot but it may help.

 

Well installed the Autolite 3922s and it runs slightly better a less stumble in hot humid weather. Not perfect but better. I wonder if moving the ITA into the cab with the AC would work as an experiment. Really right in front of a vent. Stanger things have been done.

 

There where two updates for my truck. One for the trans. and one for OX sensors. They wanted $90 to install them and gave me a break at $75. Is that crazy for a stinking down load. I'm sure the dealer doesn't pay for these updates. They just load them into their Star-scan tool and dump them into the ECM. That takes all of fifteen minutes. Another nail in coffin file for Dodge.

 

just curious if the stumble is fixed, could have been an 02 sensor screwing things up