Need Some Quick Help!

[95socalstang]

My stang is acting a little weird...When I went to start it yesterday after work it started up fine and then the RPM's starting jumping around as well as the Battery Gauge...I turned it off and let it sit for 5 min and then it started up fine and I drove away..Well after work today it did the same thing...RPMS go nuts and battery gauge goes from the empty line and then back up. I have changed my battery twice in the past 6 months(DieHard Gold) and have a pretty new alternator on there. Any ideas on what this could be? Its been very hot lately in Southern cali...Any chance that the battery is getting too hot under the black hood? LMK quick so that I can get this problem solved! Thanks a million!

Eric

 

[HISSIN50]

I might check the power distribution bolt/connection to ensure it is not corroded and that it is tight. Ditto for the alt connection.
You can have the system tested on the car if this happens often enough.

Also, you can yank codes and see if the puter stored anything during one of the car's fits.

Good luck.