Mercury Cougar jerking problems

Filed Oct 9, 2014 · Fuel system · 29,000 miles · TN

Tl* the contact owns a 2002 mercury cougar. The contact stated that while she driving at 30 MPH, the vehicle hesitated and jerked. The vehicle was taken to an independent mechanic who replaced the fuel pump. However, the failure was not corrected. The manufacturer advised that the vehicle was not included in recall the federal safety agency campaign number 04v421000 (fuel system, gasoline). The approximate failure mileage was 29,000.

Filed Jun 5, 2012 · Engine, Suspension · 130 miles · MI

When driven it jerks when u take off and when it shifts, and it makes a clunk noise when I him hit a bump it is so bad my car goes the other way the rear end.

Filed Jun 24, 2011 · Fuel system · 56,000 miles · NC

Tl* the contact owns a 2002 mercury cougar. The contact stated that the vehicle would hesitate to accelerate from stops and intermittently jerk while shifting gears. The vehicle was taken to an authorized dealer where they were in the process of diagnosing the failure. The contact was also informed that the vehicle was not included in the recall associated with the federal safety agency campaign id number 04v421000 (fuel system, gasoline). The failure mileage was 56,000.

Filed Nov 17, 2009 · Electrical, Transmission · 55,000 miles · NJ

2000 mercury cougar v 6 auto -55000 mi - steady state cruising after 10 mi 'warm up' - a frequent , problem - like ok for 3 or 4 mile , then 2 or 3 times will jerk or shudder , then ok for 3 or 4 mi - hard jerk , engine tach jumps from 2800 > 4000 RPM , back to 2800. Seems mostly at steady 70 MPH or so , does do it sometimes at 40. Seems hardly ever on short drive , like 8 mi to work in morning. Trans can't find correct gear ? Computer ? Dealer , aftermarket shop couldn't find anything. New fuel filter , trans oil.

Filed Aug 18, 2008 · Engine · 103,000 miles · NC

The vehicle, 2000 mercury cougar, begins jerking as it is being driven at any speed, and results in complete shut down of engine. Sometimes the engine will restart after waiting several minutes, and will not restart at times; requiring towing. I took the vehicle to the local dealer, and an employee stated that it was known by the manufacturer to be a design flaw in that year vehicle. Another employee took him to the side and scoulded him for the disclosure. They would not discuss it further, even though I continued to question what they were doing to correct this known defect in workmanship. To this day the vehicle continued to repeat the same failure. I had the fuel filter replaced twice. Finally a mechanic replaced the cam shaft sensor (he stated that he had seen this problem with the car many times) and knew that was the problem. Even though the sensor was replaced, the car worked without shut down for approximately 4 months, but began the same sequence of shut downs all over again. The design flaw should be recalled or consumers should be reimbursed for purchase of a known defective vehicle by it's manufacturer and designer. It is a shame to get "stuck" with a lemon. Thank you.

Filed Feb 27, 2008 · Transmission · FL

2000 mercury cougar with transmission problems. Consumer states that the transmission hesitates when putting it into gear, jerks when moving forward. He also states that transmission fluid on the ground was noticed. *kb a local transmission shop diagnosed the problem as metal fillings in the transmission fluid as well as bad seals.

Filed Jul 5, 2007 · Acceleration, Engine · 183,000 miles · NJ

Tl*the contact owns a 1999 mercury cougar. The contact stated that the engine revs very high and then the vehicle begins to jerk. The contact has taken the vehicle to the dealer on several occasions, but they have been unable to diagnose the cause of failure. The contact informed the manufacturer about the failure and mentioned that the dealer changed several parts. The manufacturer stated that there were no current recalls or service bulletins for this failure. The serpentine belt, throttle assembly, and vacuum tube were replaced, but the failure persists. The current and failure mileages were 183,000. The consumer stated believes dealer charged for unnecessary repairs, inaccurate diagnostics, and financial burden for car rentals and wants to be reimbursed all the outpocket expenses. Updated 09/05/07

Filed May 13, 2005 · Transmission · 76,500 miles · SC

I own a 1999 mercury cougar. I have maintained the vehicle per the service manual through the local mercury dealership. Sometime during early april 2005, I noticed that the car hesitated and jerked violently after about fifteen minutes of normal driving. We were able to drive the car in for service. The dealer "diagnosed" the problem and replaced a part. The car continued to malfunction the very next day. I returned to the dealership and was told that the problem was with transmission. I have had the transmission replaced by a local ford dealership. I am not sure whether the old transmission is available.

Filed Apr 7, 2005 · Acceleration · 39,500 miles · WA · crash

While pulling out of a parking lot vehicle suddenly/unexpectedly accelerated and lurch forward. Consumer applied the brakes hard to slow the vehicle down, allowed the vehicle to hit the curb, and turned off the ignition switch. Vehicle was towed to the dealer. Dealer informed the consumer that the throttle cable stuck.

Filed Mar 18, 2005 · Engine, Fuel system · 40,000 miles · VA

Vehicle will stall and then lose power while driving or hesitating. Then jerk forward while idling. There is no warning when either of these failures occur. The fuel pump/massive flow sensor were replaced twice, but failures recurred.