I've had this happen a couple of times, I was driving around 70 - 75 highway. my check gauges light came on with the accompanying chime. My voltage gauge was pegged on the high side. I shifted to neutral switched off the engine then restarted. I know this is not good but the voltage problem went away. About a week ago about 3 months and about 2000 miles later same thing happened. i have the 01 5.2 2wd. Any ideas what's going on? as far as performance I never noticed a single thing Although I do have the infernal surging that there seems to be no fix for. I'd appreciate any help.

 

scan the engine light....let us know what code it brings up.

 

When mine did the same thing it was a loose negative battery cable. check both battery cables at both ends to make sure they're clean and tight.

 

Could potentially be a failing voltage regulator, but I'd definitely clean up the wiring first as suggested.

 

The volts in these trucks are regulated by the PCM.

 

Yikes. That's an expensive voltage regulator if it goes.

 

Yup...one more reason why Rams can suck sometimes.

 

Sorry guys comp problems
the CEL never came on and no codes are listed on my gauge
The cables didn't appear to be loose What is the "PCM" J415 mentioned?

 

Powertrain Control Module - PCM. the computer. its on firewall passenger side, 3? big wire connectors. it performs the voltage regulation somehow??