Last year, around Christmas, my car stalled while making a U turn (I figured it was just some bad clutching) but when attempted to start it, nothing. My battery was completely dead. After a jump it started right up and ran fine. I took it to a shop, had the battery checked as well as the alternator. They told me everything was normal. I tightened the cables and made sure that they were clean, and the problem seemed to go away.
Fast forward a year. Sitting in front of a stop light, with the defroster / rear defroster / windshield wipers and headlights on. I noticed the rpm dropping and everything slowing down. Car stalled. I got out, pushed it down a hill to get some momentum, hoped back in, dropped in gear and it started just fine.
I drove to work, but had to keep it clutch revved just to keep it going. Took it to the shop, they said I had a bad alternator. After attempting to run the car under load with the battery cable detached, the alternator failed. So I assumed they were correct.
I bought the new Alternator, put it in, after witch it seemed to work for a little bit, but just a few days after the install the problem has come up again.
Here are the exact symptoms.
The car runs fine at speed. The battery will drain out in stop in go, unless
I keep it revved, but it will recharge at speed.
In stop and go traffic, it will stall if I run anything other then the engine with out keeping it revved.
With the battery detached it will run everything under load (with a little bit of light flicker) with the engine revved, but as soon as I let go of the gas it stalls.
Like I said it has a new alternator.
I had unorthodox pulleys on there, but left the alternator pulley off when I put the new alternator on. So now there is just the power steering/ crank pulley that are after market.
Also a question does the AC pulley, just run the AC? or is there another system that it runs.
So any help would be greatly appreciated. Thanks