12 volt Drain effecting Engine performance.

[Jfreeman1412]

Hey Guys
If you have been reading the forum lately, you know i have had some RPMS Jumping around. It seemed that I was able to fix it by turning on the crossover. That worked for about 200 miles! But then it came back. Until I shut off the 12volt fridge and the blower. As soon as I shut off the blower the rpms instantly went up 200-300. Also my volt guage up to has quit working? I tested the voltage at the alternator and it tested fine. Have you heard of this? Is it the voltage regulator? Thanks for any advice.

[prowlersfish]

Sounds like you has a bad connection at some point in the system . A bad voltage regulator may cause the voltage to drop but not cause the gage to read 0 . One common area for a bad connection is the main plug on the engine . I had similar issues years ago on my F30 , like your problems it had both fuel and electrical problems . check the voltage at the battery with it running both with stuff turn on and off . Should about 13.4-14 volts if its a lot lower check the voltage at the alternator . there should not be a big difference


Almost forgot , make sure the alt belt is tight and not slipping .

[Jfreeman1412]

Great....check that stuff. Everything look and felt right there.