Car shutting off Need Help.
 

Ok so here is a little story of some problems I have been having with the car lately. It all started with getting my cam and other parts installed. I take it to Jay Fischer Pontiac in Elmer for the work. In process they say my power steering pump is no good which I new I was having problems. So they say they fix it. Well shortly after the pump starts leaking again really bad and gets all over the alternator which ends up dying on me. I replace the alternator and find the cause of the P/S pump prb and fix it. Now the car just keeps shutting off every now and then sometimes it erases all the data from fuel management and I have idle probs till it resets sometimes car just shutsdown kicks back on and nothing is erased. Had my battery tested and it isnt great but not bad yet either. The battery is nearing the end of its life though but cant really afford to buy a new one unless I am certain that is the problem. Any info anyone can give would be much appreciated. I need to solve this prob soon.:cry:

Throwing any codes ?

sounds like a bad ground, maybe to the computer?

I would check all of your battery cables, ones running to the fuse box, alt, starter, etc.

check the grounds on the back side of the drivers head. i also think there is a ground in the area of the alt. i know what my grounds off the head were loose, the car would shut down and buck ramndomly while driving

I havn't had access to checking the codes or dont know how to bring up the codes in dash. Someone had suggested bad ground before could the ground on the alternator cause this if its slightly loose? The voltage on gauge varies a lot also jumping from 13 to 15-16 or so also.

if your up into the 15-16 range, you have major electrical charging issues. The alt may be new but if the battery is damaged the alt can get damaged as well. Id check all grounds and, if it was my car(and yes i know money is an issue for you) i'd replace the battery and alternator both right away.

Thats pretty close to what I got goin on I'm gonna check the ground on the alt tomorrow since that was the most recently messed with when I changed the alt out. Does anyone know the best way to access the alt ground kinda of hard to get to with power steering pump in the way and the little heat shield by the ground mount on alt?

Alternator is a brand new refurb I guess ill replace the batt also