Possible Electrical Problem

Hey all heres a lil a problem i had to day with my 95 Lumina LS 3.1 V6 maybe u guys can help me out to determine my problem. Well i went out to the city today as i was coming home my car shut off i started it back up with no problem. As i was sitting at a light i looked at my speedo and notcied that the needles in the speedo and the RPM's were flickering up as if they were twitching. Also as i started to drive it felt like my tranny was messed up but it was fine as i went at a more higher speed. I wanna know if i might have a wiring problem that can be the problem with this. thanx.

So anyone can help me out with this the same thing happened the other day. This time when i looked at my radio the lights were flickering can this be that the altenator needs to be changed ?

Have they alt. tested at a place like Autozone. GM alts on these cars are notorious for failing.

Have they alt. tested at a place like Autozone. GM alts on these cars are notorious for failing.


Ill do it probably tomorrow but can this also be the reason why my tranny was acting weird ?

Well i replaced the altenator the other day and the same thing is happening only this time the speedometer goes to like 40 mph when im in park what else can be the problem here?

Could it possibly be a ground wire defective somewhere?

Could it possibly be a ground wire defective somewhere?

Nah it wasnt that it was the battery terminals they were corroded but not on the main battery on the AUXILLARY BATTERY i cleaned them off and bought some terminal cleaner spray and my problem was solved :bigthumb:

Crank the car and while it's running, get a multimeter out and check your voltage...with nothing turned on it should read 14-14.7 volts...Maybe the battery's weak? Weak batteries often kill alternators...