My 2000 Volvo S70 just started stalling while driving: it completely dies while in motion. This has happened 4 times in the past week, both times (oddly) in the morning on my way home from the gym. Both times, it’s happened we have had very damp weather, and it’s the second start up of the morning. Any ideas? It has happened at slow speeds, and it feels as though it is out of gas, but it is not.
I had similar symptoms and it was a MAF (mass airflow sensor). Your Volvo specs new plugs every 30K miles and it is sensitive to old plug wires. You might be due for a basic tune up, new plugs, wires, and distributor cap. Volvo dealers will want mega dollars for this service so I hope you’ve got a good independent Volvo knowledgeable mechanic to service your Volvo.