2012 Dodge 1500 Hemi Coil Whine

[cms1126]

Okay I am completely perplexed. We have two 2012 Dodge Ram 1500 Hemi's that have a horrible whine coming through both TK790's installed in it. Both radios are wired directly to the battery, have line filters installed, and all vehicle grounds have been checked and reinforced. Here is the kicker...if I unplug the passenger side coils, the noise goes away. Dodge claims there is nothing they will do about it. Anyone have any suggestions? its to the point where you cant understand anything on the radios. No Issues with the stock stereo.

[cms1126]

Upon further research, I found this thread http://batboard.batlabs.com/viewtopic.p ... ilit=whine sounds like the identical problem to me. however no one has a fix for it.

[tvsjr]

Welcome to the HEMI. From the description, sounds like one of the coils on that bank is bad... you'll have to go through them one by one to identify, then replace it.

Alternatively, unbolt those radios and drive a Ford product underneath them (or anything without a HEMI).

[MSS-Dave]

Alternatively, unbolt those radios and drive a Ford product underneath them (or anything without a HEMI).

Priceless! Thanks for the laugh. Maybe being "Imported from Detroit" gets you cheese with that fine whine....

Dave

[cms1126]

The issue is pretty low on my to do list right now. But the laugh was appreciated! I did find the coil pack that was the culprit...just gotta see if they will order a replacement.

[nukedude]

This has also been known to happen on: Pontiacs, Impalas and other vehicles with high voltage coil packs as well. I once had to troubleshoot a fleet of Impalas that all had this problem, it took some convincing to the maintenance crew that this was not a radio problem. They had to see it for themselves. (Luckily, I drive a Pontiac that used the same coil packs and showed them myself.)