Volvo S70 owners have reported 4 problems related to power train (under the power train category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Volvo S70 based on all problems reported for the S70.
Twice, within 50 metres of the same spot each time, my car has suffered extreme acceleration whilst I was braking as hard as I could. First time, my mechanic checked all computer diagnostics using two different computer testing devices but there were no fault codes. Now, as well as happening twice within 50 metres of the same spot, I was at the same set of traffic lights, which I do not suspect as being the problem, but also next to a major hospital with an adjacent helipad. My best guess after 57 years in electronics and 40+ in computers is that some sort of rf interference is upsetting my vehicle. I know Volvo check all accidents involving their cars in sweden and wonder whether they have ever come across my problem. Both times the engine screamed its head off although I had no time to worry about the tachometer reading. The noise itself was adequate warning and the lack of braking meant that I had to kill the ignition to recover mine and the vehicles composure. Switching on the ignition again both times, the vehicle once again idled normally and operated as it should.
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all problems of the 1999 Volvo S70
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The contact owns a 1999 Volvo S70. The contact stated that he heard a loud knocking coming from the engine upon starting the vehicle. The contact began to drive, but the vehicle would not accelerate beyond 25 mph. The vehicle was not taken to have the failure diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was 101,000. The VIN was unavailable.
Vehicle throttle became unstable, causing the vehicle to not maintain steady acceleration even when the accelerator pedal was in a steady position. Diagnosed as failing throttle position sensor. Volvo refused to repair under extended warranty or recall since the vehicle was 12 months past the expiration of the 10 year, 200,000 mile extended warranty on power train. Volvo failed to notify me of the recall, even though my vehicle has been registered at my current home address since 2006.
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all problems of the 2000 Volvo S70
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My 1999 S70 with approximately 92,000 has the following issues: - sometimes the engines start shaking? - hard to brake - no power even if you pedal is at the max - cruise control stop working my car has a malfunction with the electronic throttle module and I have been to the deal to get the software upgrade. Since the upgrade my check engine light came on and have had to replace my front 02 sensor. Now the car is undriveable because it will not go more than 20mph with the gas pedal floored. Volvo will not repair this know issue because the car is 10 1/2 years old. They state if the car was less than 10years old or under 200k in mileage they would repair it. This is not fair. They could have replaced this etm when I came for the software upgrade but they did not.