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?
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