Volvo S40 sudden acceleration problems

Filed Nov 1, 2017 · Engine · 122,115 miles · TX

Car is all of a sudden accelerating on its own. It has happened a handful of times within the last month. I will make a turn, let off the gas peddle and then the car will just jerk forward revving up the rpms and accelerating on its own.

Filed Sep 2, 2011 · Acceleration · 146,400 miles · VA

Tl* the contact owns a 2001 volvo s40. While attempting to park at approximately 1 MPH, the vehicle suddenly accelerated. The contact was able to remove the key from the ignition to shut the engine off yet the failure recurred intermittently and the vehicle accelerated up to 80 MPH. The manufacturer was made aware of the failure and suggested that the vehicle be taken to the dealer for diagnostics. The vehicle was not taken to the dealer for diagnostics or repairs. The vehicle was not repaired. The approximate failure mileage was 146,400.

Filed Aug 25, 2011 · Acceleration · 130,000 miles · WA

Tl* the contact owns a 2000 volvo s40. The contact stated with his foot on the brake pedal there was an increase in engine rpms and the vehicle lunged forward. The vehicle was not taken to the dealer for diagnostic testing. The manufacturer was not made aware of the failure. The vehicle was not repaired. The failure and current mileage was 130,000.

Filed Aug 13, 2010 · Acceleration · 135,000 miles · TN

My 2000 volvo s40 had another unintended acceleration episode on april 12, 2010 (I filed a previous complaint #10288666 in oct 2009). On the highway it would go 60 MPH without depressing the gas pedal (and no it was not stuck and there was no floor mat in the way). The last time this occurred was six or seven months earlier. The ect sensor was replaced at that time. This last time the volvo memphis dealership replaced the ect sensor and it has not occurred again.....yet. This was the third ect sensor replaced in about a year's time. I asked that volvo corporate be involved to check out why this was happening. They had a field technician ride in the car with me and check it out. Basically they shared no reason for the recurrent replacement of the ect sensor and even though I continued to try to get an answer (and reimbursement for the repeat repairs). This is one of the emails I received from the volvo investigator after their inspection and my continued dissatisfaction with not identifying a root cause ---- "[xxx] , I can certainly understand your disappointment in having to replace the same part three times. As stated, if the symptoms reoccur, please either contact me directly, or contact the service manager at volvo of memphis, randy pearson, so that we may get been involved once again to review your concerns regarding your vehicle. To date, your vehicle is performing as designed. Thank you for allowing us the opportunity to inspect your vehicle. Erica kirsch product investigation coordinator volvo cars or north america" I am not interested in continuing to pursue this just because of repair costs I feel should be covered by volvo. The symptoms I have repeatedly experienced are scary and a huge safety issue. I also saw an on complaint #10288666 filed on feb 18 2010 that sounds like the same issue as mine. Information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).

Filed Aug 9, 2010 · Engine, Fuel system · 85,106 miles · MI · fire

I was driving when the car start to accelerated by itself, accel pedal went to the floor. I could not keep a car even by the hand brake, so as it was jumping ahead. Then the car began to blow black and white smoke out under the hood. Some how I turn off the engine, took the key and run away from the car in the middle of the traffic road. Green liquid under the car. It died on the road. Police came, the car towed. After several days of checkout : t/3.8 checkout and replaced t-stat, temp sensor, t-stat housing gasket; bg coolant flush ; pcv; engine vent; engine mechanical; bg power steering; bg brake after a week I got the same--jumping, not stable, accel pedal goes to the floor. Internal short in cyl 3 and 2 coil and fouled sparkplugs t/1.5 replaced coil pack for cyl 3 and 2 and replaced sparkplugs.

Filed Feb 24, 2010 · Acceleration · 10,000 miles · MA · crash · 1 injury

Tl*the contact owns a 2008 volvo s40. She stated that while driving 2 MPH and parking the vehicle with her foot on the brake pedal, the vehicle accelerated on its own and crashed into a store window. There were frontal damages to the vehicle. She suffered chest injuries. A police report is available. The vehicle was towed to the dealer and they are waiting for the diagnostic test results. There have been no repairs done to the vehicle. The failure and current mileage were 10000.

Filed Feb 23, 2010 · Acceleration, Engine · 88,000 miles · IL

Unintended acceleration occurred with car in drive. Car began to accelerate slowly increasing speed with foot off accelerator. Pulled up on accelerator with no results. Put car into neutral and RPM increased to 6000 RPM then back to 750 idle speed. Back into drive and engine accelerated again. Engine shut off via key then it wouldn't start again. Cranked but would not turn over. Dealer replaced ect because of failure of part.

Filed Feb 10, 2010 · Acceleration · 90,000 miles · NC

I'd like to report unintended acceleration in my volvo s40. It started last summer and occurred sporadically until winter and has not occurred since then. No repairs were made during this time and I have not taken it to the dealer. Several times last summer I experienced sudden acceleration that required extra hard breaking to make the car come to a complete stop. The car seemed to be giving itself gas even while I was braking to come to a stop, requiring that I press the brake extra hard. This problems sounds similar to what we are hearing in the news about toyotas.

Filed Oct 16, 2009 · Acceleration · 130,000 miles · TN

Unintended acceleration on my 2000 volvo s40. Accelerating in traffic without pressing pedal. Must press brake hard to stop. Continues to rev high. This has happened twice in the last month. After the first time, my service shop replaced the idle air control valve but it occurred again about a week and a half after that. Service technician has indicated he cannot potentially diagnose unless it is occurring when he can drive and look at it. It is a serious risk for crash or injury.

Filed Dec 1, 2008 · Acceleration · 37,171 miles · MA · crash

Tl*the contact owns a 2004 volvo s40. While attempting to park the vehicle with the brake pedal depressed, the vehicle accelerated on its own and crashed into a telephone pole. The contact was uninjured. The vehicle was taken to the dealer and they repaired the damages at the cost of $8,000. The cause of the failure could not be determined. The failure mileage was 37,171 and current mileage was 38100 updated 1/5/09 *cn updated 01/09/09.