Let's brainstorm.

[goof2]

Originally Posted by Triple

Let's brainstorm, again.

I finally got the car running last weekend. It stuttered a bit as it choked down the last bit of old gas sitting in the lines (I drained the tank, installed a new fuel filter, and re-filled with fresh, ZERO-ETHANOL fuel), but it now idles smoothly and responds normally to throttle inputs.

One problem: use of the power windows, headlights, wipers, etc causes the engine to stumble. This was an issue before I parked the car two years ago, too, only then it would cause the alternator belt to scream as well. I've since installed a new alternator (had it tested before I left the store) and new belts. No more screeching, but it still makes the engine stumble.

Why?

Have you checked your grounds?