2005 Ford Five Hundred: hesitation when accelerating

Filed May 30, 2017 · Fuel system, Transmission · 130,000 miles · IN

At low speeds, when turning and when accelerating from a stop, the car will shake, lunge and then shut off. Sometimes it just shakes and hesitates and then keeps going. Sometimes it takes a while to get it running again. It always happens when the car is in motion. A couple of times this happened, the transmission error codes were displayed. I have had the transmission checked out and it was fine.

Filed Oct 29, 2015 · Engine · 105,585 miles · CA

Tl* the contact owns a 2005 ford five hundred. The contact stated that while driving at 20 MPH, the vehicle hesitated to shut off. The instrument panel illuminated and loses power. The failure recurred five times. The vehicle was taken to a dealer where it was diagnosed that the throttle body was stuck open and the ECM needed to be reprogrammed. The vehicle was repaired however the recurred. The manufacturer was notified of the failure. The failure mileage was 105,585.

Filed Jan 17, 2014 · Transmission · 55,000 miles · PA

Tl* the contact owns a 2005 ford five hundred. The contact stated that the vehicle hesitated while driving uphill at 40 MPH . The vehicle was taken to dealer for inspection but a clear diagnosis was not given. The vehicle was not repaired. The manufacturer was notified of the issue. The approximate failure mileage was 55,000.

Filed Jul 25, 2011 · Electrical · 136,000 miles · WV

We have a 2005 ford five hundred. Two days ago, the car failed to respond when the accelerator was pressed, even as it was pressed to the floor. The wrench light came on and the car started lunging and hesitating in addition to not accelerating properly. This occurred while driving through a very busy intersection; thankfully, I was able to move the car with my two small children out of traffic. A diagnostic computer provided two codes - p2106 and p061b. This is not the first time the car has lunged; it has been doing this for approximately 1.5 years. It has repeated this several times in both drive and reverse. In most instances, the air conditioner was running at the same time; however, the car has lunged when the A/C was not on. The lunging occurs when the car is being driven or sitting idle (I.e., stop lights, preparing to merge into traffic). I have been able to avoid accidents by keeping my foot firmly on the brake and by creating a large stopping distance cushion. We contacted the dealer and were told the entire throttle body would need replaced, at a cost of over $530.00. We are now reviewing our options.

Filed Aug 30, 2010 · Acceleration · 65,000 miles · FL

Tl*the contact owns a 2005 ford five hundred. While driving 40 to 45 MPH the throttle body failed. The vehicle began to hesitate, lunge forward and would not move normally. The vehicle was taken to the dealer who stated that the throttle body needed to be replaced, but the parts were on back order and would also cost $400 to repair. The ford manufacturer was not contacted. The VIN was unavailable. The failure mileage was 65,000.

Filed Mar 6, 2010 · Transmission · TX

Car hesitates then lunges forward, and even feels like throttle gets stuck..

Filed Apr 18, 2008 · Engine, Transmission · 4,000 miles · PA

Tl*the contact owns a 2005 ford five hundred. While approaching a stop sign, the vehicle would no longer go forward. The vehicle would only move in reverse. The contact was close to her residence and drove there in reverse. The vehicle was towed to the dealer and they checked the fluid levels and the transmission light. A diagnostic was performed and the PCM and TCM were reprogrammed. In april of 2008, the vehicle hesitated and the check engine light illuminated. The contact took the vehicle to a service center for another diagnostic and was charged over $500. The current mileage was approximately 17,000 and failure mileage was approximately 4,000. Updated 07/15/08. *lj updated 07/15/08

Filed Mar 29, 2007 · Fuel system · 61,550 miles · KY

Lost power while driving; would sputter on take off from a stop; would hesitate while pressing accelerator; stalled; took vehicle to ford dealer -- they replaced the fuel pump.

Filed Dec 7, 2006 · Transmission · 15,000 miles · CA

Purchased ford five hundred in february 2006, an sel automatic. Around 15,000 miles began noticing transmission issues, mostly hesitation when shifting into gear. First major incident occurred oct. 22, 2006 while traveling at 65 miles per hour on the freeway, engine revved while pressing the gas pedal but vehicle slowed as if it was in neutral. Then it punched violently and resumed driving normally. We pulled over thinking something major was wrong with the vehicle. We began our journey again and had several incidents of minor punching of the transmission, like it was slipping out of gear and going back in again. After we returned home, these problems were very intermittent. About 2 weeks later while driving on the freeway, the vehicle slipped out of gear and almost came to a complete stop before re-engaging. We brought it to the ford dealer the second week in november. They said they could not duplicate the issue, however they said there was a computer technician log that suggested a reset. They reset the computer, changed the oil, checked the transmission fluid, etc. A few days later the transmission was back to slipping intermittently. On november 20, 2006, the severe punching began again, so bad this time the vehicle almost came to a complete stop. We had to shift the gear into 2nd before it engaged and we were able to accelerate. Since we were on vacation, we had to continue on our trip with the transmission slipping in and out of gear. When we returned from our trip, back to the ford dealer we went. We took the transmission technician guy for a test drive and luckily we were able to duplicate the problem. He was amazed, hadn't seen anything like it before. He talked to other transmission tech's who were stumped by the problem, too. He ended up calling ford headquarters and spoke with the engineers. They decided a complete replacement of the transmission was in order because they weren't sure what was causing the problem.

Filed May 1, 2006 · Acceleration, Transmission · 9,450 miles · CA

Dt*: the contact stated while applying pressure to the accelerator pedal and the vehicle hesitated. The dealer was unable to duplicate the problem. The manufacturer was contacted. Updated 05/30/06.

Filed Jul 26, 2005 · Brakes · OH

I noticed shimmy in front end while applying brakes, and grinding noise from right rear at the same time.there was a squeak in the rear suspension going over the slightest bumps. The car had 1443 miles on it. I took it to the dealer and left it for the day. Their response was, customer states vibration when braking, test drove and resurfaced front rotors. Customer states right rear brake grabs, test drove and could not duplicate customers concern at this time. Customer states there is a squeak noise going over bumps, seems to be coming from the rear. Per ssm18479, ford engineering is looking into this concern, we have applied krytox grease to suspension. The 2nd visit to the dealership, 3429 miles on car, it had a hesitation when accelerating, still having right rear brake grinding, extremely excessive brake dust on right rear wheel. Dealer response, customer states there is a hesitation on acceleration, test drove to verify concern/vehicle did hesitate on rolling take off. Diag. System and found no codes/checked pidsall ok checked oasis and found tsb 05 11 08 performed tsb reprogrammed PCM/TCM, rechecked, all ok. Customer states right rear brakes seem to be dragging, excessive dust. Checked right rear brake for sticking/checked ebrake system and found working ok/checked brake caliper for binding and caliper slides and pad slides, all ok. Could not duplicate customers concern at this time. The car has 4700 miles on it now, still has extremely heavy brake dust on the right rear wheel, still feels and sounds like it is grinding, still no satisfaction with dealer's response that there is nothing wrong with right rear wheel/brake system.