1999 Volvo S80: hesitation when accelerating

Filed Aug 13, 2008 · Acceleration · 137,000 miles · WA

Tl*the contact owns a 1999 volvo s80. The vehicle first began hesitating and stalling intermittently while driving between 50-60 MPH. The failure is now occurring more frequently. The vehicle has been to the dealer three or four times for this failure. The accelerator pedal was replaced twice and the throttle housing module was cleaned; however, the failure continued. The last time the vehicle was taken to the dealer, they could not determine the cause of the failure or provide further assistance. The contact referenced defect investigation number pe05041 (vehicle speed control). The VIN was unknown. The current mileage was 141,000 and failure mileage was 137,000.

Filed Dec 15, 2006 · Brakes, Engine · AZ

1999 s80 stalled/surged at 20,000 miles at the time. *ts the consumer stated whenever the stalling occurred, the cruise control would go out, and at highway speeds the engine would start to run in an uneven/hesitation mode. The problem was much worse at lower speeds. The dealer installed two software updates at different times which did not fix the problem. Finally, the problem was fixed when the airflow sensor and the ABS control unit was replaced.

Filed Nov 27, 2006 · Acceleration, Brakes · 20,499 miles · AZ

Dt*: the contact stated while driving various speeds (15-75 MPH) on normal road conditions with the cruise control engaged and after an extended ride from 45 to 90 minutes, all warning lights illuminated. The cruise control disengaged by it self and the engine hesitated. The vehicle was taken to the dealership twice, who performed a the federal safety agency recall #06v41000 which entailed upgrading the current software. However, the problem was not corrected either time, the lurch/stall problem continued. The dealership and the manufacturer coincided the replacement of the air flow control and the ABS control unit was not covered by the vehicle's extended warranty, eventhough those replacement corrected the problem. The contact was very concerned because the recall did not solve the dangerous problem. Updated 12/28/2006 -

Filed Oct 19, 2006 · Acceleration, Engine · NJ

For the past year my check engine and urgent light have been popping on. I have to go to my machanic (who is volvo certified) to have them turn off. But the check engine light comes on more frequent now. For the past 6 months, when I start the car, it hesitates and runs rough, like it is going to stall. The first time this happened my machanic said it needed a tune up. Today 10/19/06 I brought it to my macanic again, and they told me it was the throttle module and the 1999 s80 's are having all the same problems, and that I need to take it to an authorized dealer, before it gets worse.

Filed Oct 7, 2005 · Electrical · KY · crash

Had taken my s80 to the volvo dealership a number of times complaining of engine hesitation and stalling. Volvo"s diagnostic computer system "vadis" output codes clearly showed default codes indicating a faulty module. The service manager at this steadfastly refused to replace the module "due to cost". I warned him of the potential consequences of trying to operate this vehicle with unreliable engine firing and the associated "stalling" that occurs without warning. I expressed my concerns to him about the danger that this problem presented for me and other vehicles which I had experienced during previous "stallings". Unfortunately, after tremendous research and a number of phone calls before I could bring this info to bear to force the dealership to honor their warranty I experienced a "stalling" event while driving on the expressway which lead to a single car accident,resulting in a total loss of my car.