Hey whats up guys? This may have been mentioned before in a previous thread but I haven't had any luck finding anyone with the same issue. I have an '03 Ram QC 2wd with a Hemi w/ 78k and I've noticed lately that the idle seems to drop lower at a stop. Whenever I pull up to a stop light the RPM's will sit at about 500-550..which causes a slight vibration..almost like a misfire. If I slightly tap the gas pedal the RPM's will jump to about 700rpm and idle smooth as can be! This is a constant thing every time I'm sitting idle at a stop in drive. I'm suspecting it may be the air intake temp sensor but I'm not receiving a check engine light / code either.
**ALSO, I do NOT have a cold air intake...still running the factory air box**