3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
I have a 2003 Ram 1500 with the 4.7 L that has a rough idle at a stop light or sign. Sometimes it idles bad enough that it dies but it will restart. It doesn't set any DTC's. I have tried a new throttle position sensor and downstream O2 sensor. If i unplug the downstream O2 sensor the truck seems to run fine. Any one have any ideas? Any help will be appreciated
This ad is not displayed to registered and logged-in members. Register your free account today and become a member on Dodge Forums!
Yes i am referring to the one after the converter. As far as the tune up i don't know. My friend has owned it since May and they haven't done anything to it. i did check the throttle blade. I didnt see any build up on it. And i did remove the IAC and check it. There wasnt really build up on it either. I did use a rag and wipe it clean.
I had a misfire in one of my cylinders. One of my plugs was smashed and had the incorrect gap. It ran rough, and I would pull up to a stop light and the truck would just shake so bad. My truck didnt throw any codes for a day or two. Might pull the plugs and check the gaps and see if they need replaced.
2003 Dodge Ram 1500 Hemi 4x4. Mods include Spectre CAI, Magnaflow muffler, Hypertech Max Energy, 2.5 inch level with 1 inch rear block, Rough Country nitro 9000 series shocks, 315/70/17 Hankook ATM tires.