Good morning all - my son has a 2004 Ram 1500, 5.7L automatic transmission, 4x4 with approx. 130,000 miles. Last week a few electrical glitches all showed up at once. The radio was cutting in and out, the odometer display was flickering, the AC would turn on by itself, and the blower fan would cut in and out. The symptoms went away for a few days but started up again this morning. The truck is running fine otherwise. Any thoughts on the culprit? I would assume it would be 1 root cause as the symptoms seem to appear and disappear at roughly the same time? Am I looking at a TIPM issue? Thanks in advance.

 

Trick would be to see what all those systems have in common... My first guess would be ignition switch.... if the truck even has one.

 

Thanks for the input. As you can tell, electrical is far from my forte. Does anyone have any feedback on this?

 

Another area to check is electrical supply and grounds. Your grounding points should be clean and tight. Grounding cables should be flexible.
What is your voltage gauge doing when the systems are flickering? You could put in a USB charger in your cigar lighter slot, one that also has a digital voltage display. If that read erratically then you may have an electrical issue.