Four problems related to car stall have been reported for the 1999 Volvo S80. The most recently reported issues are listed below.
I just purchased a used 99 Volvo, I am a mom of 4 and had heard Volvo to be very safe reliable car. The car ran great for about 2 days, then the lights started coming on, engine system service required, and the vehicle would also stall for no reason. I took it to local Volvo dealer, they say there was a recall on the message board, but if the light came on again it would need a new throttle module, cost of 1100. I left and came home and did some research, I have since found that the etm has been recalled on that year vehicle and they extended the warranty to 200,000 miles. I am very disappointed in the dealership that they would not inform me first hand and try to charge me. I have since contacted Volvo llc and am awaiting a response. I have also learned that the stalling is considered "limp home mode", which is suppose to be a safety feature, however I did not feel safe when the vehicle did it today driving on i285, in the center lane at 65 mph with my 2 year old in the car. After that experience I do not think I would ever recommend a Volvo to anyone.
Car is stalling and idling irregularly.
Sudden loss of power and stalling of engine at highway speed. Pulled car safely off road. Car restarted. Brought car to Volvo dealer who could not find any problem.
I own a 1999 Volvo S80 which I drive for business purposes. On August 17, 2004 the vehicle stalled at highway speed. Would barely run, even with full throttle. Had vehicle towed to nearest Volvo dealer, Volvo of louisville, ky. They replaced throttle body . Approx. 2 weeks later, had same occurrence. Car stalled at highway speed. Had vehicle towed to local dealer, century Volvo huntsville, al. They examined it and could not find any problem. It was not malfunctioning for them. They kept vehicle for several days trying to duplicate problem. I had a similar occurrence again approx. 5 days later. Instead of having vehicle towed again, the service rep suggested that the car might "reset" if left for 2-3 hours. I left car on roadside overnight and had my wife come pick me up. The next day I went back and the car drove fine. I had another occurrence at highway speeds on October 26, 2004. Vehicle towed to royal Volvo in birmingham. By the time they examined it, vehicle was no longer malfunctioning. They kept it running under load for several hours. There were no computer fault codes found that could have contributed to the problem. This is the same information that centrury Volvo had found and advised me of earlier. I continued to drive the car with a lot of concern through the winter. It went several months with no problems. I had another occurrence in may 2005. I was able to make it home by allowing the car to sit for 20-30 minutes and then it would drive for a short distance before going bad again. At this time I parked the car and began driving my secondary vehicle (a 94 Volvo 960). Unfortunately, I was involved in an accident with this vehicle on July 29, 2005 which forced me to drive the 99 S80 again. It stalled out again today (second day driven). I've had it towed to century Volvo in huntsville again. My salesman showed me an article in today's newspaper regarding this problem.