I have been having a noise that sounds like it is coming from the front end of the vehicle. It is a howling noise that progressively gets louder at higher speeds. It is really loud at around 65-70 MPH to the point where I can hear it over my Magnaflow exhaust. There is also a ticking noise at...

Recently purchased a 2004 Ram 1500 Hemi Magnum with 55K miles. Check engine light came on, ran diagnostic....code reads EGR valve or PCM as the most likely fixes. Any thoughts on what to try first? Any specific ways to tell which of the two it might be? I've read about resetting the PCM but not...