Other Fuel System Tank Assembly problems of the 2006 Ford Freestyle

I bought this car from private seller. On the drive home I turned on ac and noticed a surge so I turned the air off. After getting the car home I filled the tank as it was almost empty when I purchased the car. The car began to surge forwards and backwards at an idle, and then began to surge while driving. Check engine light came on and codes indicated it was a misfire, so did a tune up (changed spark plugs and coils) only to have the issue get worse. The car is now almost stalling and surging hard. Car is very slow to accelerate and feels to have no power while attempting to get up to even in town speeds(25-30mph) car is undrivable safely at this point and I have not even owned 2 months. Surging happens at idle, low speeds, freeway speeds, and surges violently when trying to accelerate.

I just bought the vehicle via private seller. No issues were reported by seller. I filled vehicle and entered the freeway. A few moments later the vehicle started jolting while at a high rate of speed. I pressed the accelerator, the vehicle did not respond. The vehicle continued to jolt off/on. I exited the freeway due to feeling unsafe to continue on the freeway. Upon exiting the ramp, the vehicle stalled. I had no control of the vehicle as the breaks did not seem to work and the power steering was out. I pulled the steering wheel, as hard as I could, to the right to the shoulder of the road. Once the vehicle came to a stop. I put the vehicle in park, restarted the vehicle and continued driving cautiously. Driving at a slower rate, 35-40mph, the vehicle started to jolt again and had difficulty accelerating. After several days of this issue, I cleaned the battery terminals to ensure there was a good connection. I thought the issue was resolved. At this point I had half a tank. A couple days later, I was on empty. I filled up the vehicle for the week. My vehicle is now jolting and surging again. I was almost home, when the vehicle shut off, I lost power steering again and the breaks were not working. I again pulled the steering wheel, as hard as I could to the right, to get off the road as an oncoming car was just ahead. Once the vehicle came to a stop, I put it in park, restarted the car, entered the driveway and parked it. Today the vehicle is still jolting, surging and has a delay when pressing the accelerator. I am scared to continue driving this vehicle! I have no control after the vehicle stalls. I am scared the vehicle is going to stall, at a high rate of speed, and I am not going to be able to get off to the shoulder, turn the wheel fast enough to avoid a collision or maneuver a curve when if it stalls. I am scared I may hit a pedestrian due to no breaks.

Vehicle purchased used 10/2013 from national used car retail chain. *records, via Ford dealership (as of 07/2014), indicate tb issue (ref. Nhtsa pe11018) addressed under Ford csp 12n03; 08/13 [tb cleaned & programming edited by 2nd local Ford dealer. ] initial incident occurred 10/2013, less than 72 hours after purchase, codes indicated; as per retail chain repair shop*, a misfire on cylinder 6. Repair made via dealer warranty, replacing plug & associated parts. Drove car from date of repair, including highway, long distances & locally w/o notable incident. Later, service light began to flash on & off; no codes present. Assumed indicator short. Eng. Light & svc. Lights came on & went off periodically but never readable for codes. Car then began to make noises occasionally upon start up similar to solenoid failure & exhibit "dieseling" upon ignition. Weather related? then; 03/2014, entered highway, accelerating to 60/mph - at half mile up, car "shut down"; rpm flat, speedometer flat, pedal non-reactive, steering impaired, no electricity. Coasted to divide in highway; cranked vehicle, turned & crossed to shoulder; stopping & starting several times. Moving 10/mph to safety. Still no codes. Thought clog in fuel system/ trash in gas. Next attempt to drive, filled tank, new gas; no indicator lights, no problems. Then: incident:05/2014: cranked & backed out of driveway, placed g. Shift in d. . Nothing. . . No movement, rpm flat,speedometer flat. Service & engine light came on. Rolled back in drive, car sat for several days. Cranked it, eng, & svc. Lights still on; drove to parts store. Codes present indicate tb malfunction. Problem not covered via purchase agreement. Ford says; "problem solved". Part/ $500 plus labor. Payment:$475/mo. Afraid to drive it. Don't want to be the stalled car hit from behind @ 65/mph by a big rig statistic to fix it. It is still broken.