Volvo S80 sudden acceleration problems

Filed Jan 14, 2018 · Acceleration, Fuel system · 58,421 miles · TX · crash

While pulling into a parking space from the driving lane of a parking lot, my volvo had a surge of power that could not be controlled/stopped by applying the brakes. I was barely in motion with my foot on the brake when we (my mother, sister, and I) heard the engine roar and the car surged forward. I applied more pressure to the brake but the car would not stop and went over a wheel stop so I then started pumping the brake. The car finally stopped moving once it hit a pipe bollard but the engine would not turn off, my electrical went haywire and I could not get the car in park to remove the key. Upon impact the passenger seat belt did not hold my mother in place and the air bags didn't deploy. I am the original owner of this car which was in pristine condition but now wrecked. I have all the service records for this car and have had problems in the past with the following items; faulty cooling fan module, engine running hot, faulty battery cell, faulty scu module, faulty starter, faulty map sensor, faulty oil level sensor, faulty power steering rack,faulty fuel pressure sensor, failing lamp socket, faulty schraeder valves, faulty alternator and voltage regulator, and a faulty AC compressor.

Filed Feb 23, 2016 · Acceleration, Engine · 16,000 miles · NY

While stopped in drive at a stop sign with foot on brake,on corner of city street engine revved very high and car tried to surge forward. Applied brake even harder, put car in neutral and stopped engine. Tried to start up and same thing happened. On third try, engine seemed normal, but "check engine light" was on. Drove 100 yards to home garage and had car flat-bedded to dealer.

Filed Dec 5, 2011 · Acceleration, Brakes · 11,500 miles · MI

Driving on city street at about 30-35 MPH. As I approached intersection I took foot off accelerator pedal and stepped on brake pedal to slow down and stop at intersection. As I stepped on brake pedal, I could hear engine start accelerating and car wouldn't stop. I noticed tach reading between 4 and 5. Although engine was accelerating and vehicle was moving forward it was not moving at excessive speed. I pressed harder on brake pedal and while car slowed somewhat it would not stop. So I decided that the only way to stop vehicle was to move gear shift lever to park and then turn off engine. I then restarted car and it functioned normally. My experience might be an example of what has been called "sudden, unintended acceleration".

Filed May 9, 2011 · Acceleration · 108,000 miles · RI

The car throttle is faulty. My car revs to high RPM when idle and at low speeds. It also is in limp mode. When this problem was found and recalled in 2006 I brought the car in for the software upgrade, but the car is still trying to lunge forward at low speeds and revving in idle. I was told by volvo customer care there was nothing they will do for the problem since the software had been upgraded even though the throttle is faulty.

Filed Nov 10, 2010 · Acceleration · 136,044 miles · PA

Tl*the contact owns a 1999 volvo s80. While driving on three different occasions there was sudden unintended acceleration. The rpms increased from 700 to 4000. The vehicle was shifted into neutral gear in order to turn the engine off. Within a few seconds before restarting the vehicle the rpms increased. The vehicle was turned off three times and then back on in order to reset itself. The dealer was not contacted nor was the manufacturer notified. The failure mileage was 136,044.

Filed Oct 7, 2010 · Transmission · 122,500 miles · FL

Tl*the contact owns a 2000 volvo s80. While driving approximately 35 MPH, the vehicle suddenly surged forward lightly. The failure continued intermittently at any speed. The vehicle was taken to an authorized dealer where the contact was informed that the transmission needed to be replaced. A mechanic at a local repair shop also verified that the transmission needed to be replaced. The failure mileage was approximately 122,500 and the current mileage was approximately 130,000.

Filed Oct 4, 2010 · Acceleration, Electrical · DC

1999 volvo s 80. Consumer states problems with the transmission and electrical problems *tgw the consumer stated while driving, the interior dashboard and overhead lights began to dim and then returned to normal light levels on a repeated basis. There were a couple of incidents, where the vehicle would lunge forward without applying pressure to the accelerator and at times would almost come to a complete stall. The consumer stated he also had problems accelerating as he entered the interstate on entrance ramps due to what appeared to be stalling of the engine. The vehicle completely stalled. The vehicle was taken to a repair shop and it was determined the etm had failed and needed to be replaced. The repair shop informed the consumer about a recall and extended warranty. However, when the consumer contacted volvo, he was told his vehicle was updated in august 2008 and they wouldn't assist any further.

Filed May 11, 2010 · Airbags · VA

Wanted to purchase a new 2010 volvo. The airbag light was on, dealership could not clear the code. Was told by a technician that there was a loose connecter and there is no fix at this time, volvo of america wanted the dealership to wrap tape around the connector and jam it in place to get rid of the airbag light. I did not purchase for obvious safety reasons. What happens if this "fix" fails right before a crash, and the airbag system does not work as designed? Apparently all 2010 s80, xc70, and xc60 vehicles can be affected. The other thing that concerns me is volvo of america does not want this repair in writing - looks like they have something to hide. Is this how the toyota unintended acceleration problem was first handled?

Filed Mar 26, 2010 · Acceleration · 80,000 miles · NY

Tl* the contact owns a 2000 volvo s80. The contact noticed that when the vehicle was at a stop, the rpms fluctuated up and down. The contact also noticed that when he did not have the brake pedal depressed to the floorboard, the vehicle would suddenly surge forward. He experienced the failure with what he assumed to be the transmission for a year before taking it to the dealership . The authorized dealer was informed about the failure but the contact was told that the repair costs would be at his expense. He called the manufacturer and was informed that because the vehicle was no longer under warranty, he would be responsible for repair costs. The vehicle was taken to a local mechanic who cleaned the throttle body. The contact noticed no problems until recently. However, the contact began experiencing the same failure. The failure mileage was approximately 80,000 and the current mileage was approximately 125,000. The consumer stated the vehicle has a defective throttle body that makes the vehicle have an erratic idle when stopped or going very slow. As a result, it would lunge forward. Updated 05/12/10.

Filed Mar 8, 2010 · 60 miles · PA

Volvo vehicles sudden speeds increase there is a air-box problem which causes the engine to accelerate,and vehicle to lunge forward. Speeds the engine.