2005 Ford Five Hundred: sudden loss of power

Filed Apr 29, 2016 · Electrical · 95,000 miles · MD

Tl* the contact owns a 2005 ford five hundred. While driving 50 MPH, the vehicle lost power and jerked. All the lights on the instrument panel illuminated. The vehicle had to be turned off and restarted. The vehicle was taken to an independent mechanic who diagnosed that the computer needed to be replaced. The computer was replaced, but the failure recurred. The manufacturer was notified of the failure. The approximate failure mileage was 95,000.

Filed Apr 12, 2016 · Acceleration, Electrical · 188,000 miles · WV

The transmission disengages at various speeds even on the interstate at 55+ MPH causing it to lose power. You must be able to get it stopped on the side of the road and shut the car off and then restart it to correct the problem for a short period of time.

Filed Mar 10, 2016 · Transmission · 141,000 miles · FL

I own a 2005 ford five hundred CVT. 2 months ago the transmission began acting up. Driving along and the "wrench" lite comes on then the "skid" lite comes on. The car goes into a loss of power, like low gear. It moved but revs up and won't shifts up. I know its a constant velocity trans so it is at it's lower ratio. After hours of diagnostic it comes down to the trans control module, and still not sure. The obd codes say loss of communication, a u code. Every inch of harness has been checked the whole interior has been removed, dash disassembled. I'm into it over $2,000. I love the car, it rides great. Its has been well maintained. Ford I need help. Need to recall this issue or how about a p01 or z01 policy adjustment.

Filed Aug 27, 2014 · Electrical · 159,985 miles · TN

Was driving in heavy traffic through metro city in rush hour on interstate.on 4 lane highway had to cross 2 lanes of traffic to exit;car lost power and message center said engine fail safe mode.tried to accelerate to exit;car had lost power with no acceleration.when I finally got to exit was down to 20 miles per hour.

Filed Aug 22, 2014 · Acceleration, Electrical · 177,320 miles · KY

I was driving in town going about 40 MPH when the car lost all power, then engine failsafe mode displayed on the information center and a little wrench was also displayed. With no power steering, I had to pull over quickly in lunchtime traffic. After stopping the car, I waited a few seconds and restarted it. No problems with it until the next day when the check engine light came on. I have also noticed a mechanical smell coming from the AC. It appeared, at first, that this problem had come out of nowhere when I suddenly remembered two occasions when the rpms suddenly stuck on 3000 and would not stop until I put the car in neutral. Also, when using cruise control, the whole car shakes and stutters slightly when going up or down very slight inclines.

Filed Jul 29, 2014 · Transmission · 120,500 miles · MI

2005 ford five hundred this product with a CVT transmission should be investigated and recalled immediately. There are thousands failing and it is very dangerous! The transmission disengages causing the automobile to lose power without warning. I've seen posts of thousands of this same failure beginning at 3500 miles! I contacted ford because mine is doing this and they basically sent a form letter saying oh well, sorry about your luck. Many of ford's products have this same issue with the CVT transmission including the ford flex which is involved in a class action lawsuit. The five hundred should be involved in this lawsuit as well.

Filed May 16, 2014 · Electrical · 35,500 miles · MA

I purchased the vehicle used on 2/21/14 w/31,000+/- miles, initial issue was with instrument cluster intermittently blipping on & off (sometimes for extended periods). That issue was followed by a check engine light, which when analyzed showed low fuel sensors a&b (occurred in late april 2014). Up to this point the vehicle was drivable with no impact on actual drivability. Last friday 5/9/14, I was at a light and when it turned green I proceeded to drive off, but vehicle was barley moving or responding to throttle input, this continued for a short distance & eventually built up to normal speed. It recurred again at the next light, with same symptoms. I contacted a mechanic I know and the next day I disconnected the battery cable in an attempt to clear the system, and as of a week later only the dash lights issue has recurred. However I feel the loss of power is a significant concern if it were to occur on a busy road or at highway speeds.

Filed Oct 31, 2013 · Acceleration, Fuel system · 153,000 miles · AR

Driving at 30 MPH on secondary street when vehicle lost power and service engine light came on. Coasted to side of road tried to push accelerator to raise RPM. Rpm remained at 1000 and not enough power to pull back on the road. I turned vehicle off and started the engine back up when power was restored and service engine light went off.

Filed Oct 8, 2013 · Acceleration, Fuel system · 187,910 miles · TN

I was driving at 55 MPH when the car spuutered and lost all power. At that point the car would only idle which barely allowed me to pull off the road into a driveway. I turned it off and restarted. The car ran fine for a few miles then ,while turning off a main road the car lost all power and almost caused an accident. I turned it off and on again and was able to get it home. When I got home I checked it for codes and it brought up a p212 and p2104 code. I had the car towed to tracy ford where they replaced the throttle body at $690+/- plus labor.

Filed Jun 20, 2012 · Transmission · 67,407 miles · IN

Tl* the contact owns a 2005 ford five hundred. The contact stated that the vehicle down shifted and lost engine power. The failure was experienced numerous times. The dealer reprogrammed the computer, but the failure was not corrected. The vehicle was taken back to the dealer for a diagnostic test, which located the failure at the transmission valve body. The transmission valve body was replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The approximate failure and current mileages were 67,407.

Filed Jun 18, 2012 · Engine, Transmission · 47,000 miles · MO

Vehicle shifts hard when hitting passing gear on highway like transmission is slipping or going out. Lose all power and car will buck back and forth. Also does it when transmission down shifts and then tries to upshift when accelerating and engine warm.

Filed May 25, 2012 · Transmission · 48,000 miles · NH

Vehicle slipped out of drive into neutral while ascending hill. I had to pull over completely and stop, shift into low and slowly back into drive. The car behind me almost rear ended me as I had lost power with no warning. Car once warmed starts to buck violently while driving at an even speed, bucks violently when coming to a stop and randomly slips out of gear with no warning. I have had this car since 2009 and have pot less then 20000 miles on it. The dealer tells me the computer does not read any problems.