Tl* the contact owns a 1999 volvo s70. The contact stated that the vehicle experienced unintended acceleration. In addition, all the lighting and warning indicators illuminated. The dealer could not duplicate the failure. The vehicle was taken to an independent mechanic where it was diagnosed that the vehicle speed signal and throttle body control module were defective and needed to be replaced. The manufacturer was not notified. The failure mileage was approximately 120,000.
1999 Volvo S70: sudden unintended acceleration
6 of the 205 complaints about the 1999 Volvo S70 describe sudden unintended acceleration.
- owner complaints
- 6
- of this car's complaints
- 3%
- recalls
- 1
Is there a fix? There is 1 recall and 4 service bulletins for this area of the car. See below
Sudden unintended acceleration by model year
- 20004
- 19996
- 19983
What owners say
In mid-december the car started but ran rough and lacked power. Previous to that it ran fine; since then it has had various intermittent problems related to acceleration. Sometimes the engine runs rough and lacks power. Other times the engine runs fine but the car does not respond to accelerator input to increase speed. Sometimes the car stumbles but accelerates adequately. More often the car will accelerate to about 20 MPH and not increase speed beyond that irrespective of accelerator pedal pressure. After a few seconds the car will suddenly accelerate normally. Replacing the throttle body module corrected the problem. This part is subject to a the federal safety agency agreement with volvo that requires volvo to replace the unit free but the dealer refused to do that and charged me for the repair.
On november 17, 2006 my wife was backing her 1999 volvo s70 out of our driveway. She stated that the car suddenly accelerated backwards, shot across the street and slid into our neighbor's landscaping/bushes etc. She was able to turn the car so that the left side of her car swiped the bushes and hedges. Result--no personal injuries, thank goodness. Over $6000 in damage to the car which was towed to paul's volvo in hawthorne, nj from which it was forwarded to j&j auto body in haledon nj.
Consumer volvo v 70 stalls while in traffic. *ts ***nar*** the vehicle also suddenly accelerated and decelerated intermittently while driving. *nm [letter in repository this voq, x ref voq 10156335, smch]
Consumer stated that while driving and without warning the vehicle will surge forward causing a distraction to the consumer. Dealer notified. Ts
The vehicle made a roaring sound followed by check the engine and ets lights when starting, and accelerated on its own while the driver was backing out of parking. The incident occured again after repair was done. Yh
Service bulletins that may apply
Related recalls
Vehicle speed control
- What is wrong
- On certain passenger vehicles, a combination of throttle positioning sensor irregularities, a dirty throttle housing, and/or inefficient software calibration may cause a warning lamp to light and the subsequent onset of limp home modes.
- Risk
- This resulted in a high number of vehicles going into the limp home mode without need.
- Remedy
- Dealers will install the current software upgrade onto the involved vehicles. The recall began on december 29, 2006. Owners may contact volvo at 1‑800‑458‑1552.
Recall number 06V441000 · Recall details
Questions about the 1999 Volvo S70 sudden acceleration
Is sudden unintended acceleration a common problem on the 1999 Volvo S70?
6 of 205 owner complaints about the 1999 Volvo S70 (3%) mention sudden unintended acceleration. The model year with the most reports is 1999.
Is there a recall or service bulletin for this on the 1999 Volvo S70?
There is 1 recall and 4 service bulletins for the same area of the car. Check them below with your VIN.
Other symptoms on the 1999 Volvo S70
Stalling 59Check engine light 21Loss of power 18Headlights 8Hesitation 8Adaptive cruise 7Jerking 7ABS 6Misfire 6Won't start 6No deployment 5
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