Fuel System complaints by model year
Which parts fail
Components named in complaints (fuel pump, injectors, fuel tank, hybrid and EV propulsion).
Mileage when the problem started
What owners report
On the 476 near philadelphia, my 2000 Mercury Mystique chugged and continued to lose power as we carefully pulled over to the side of the rode. There was almost 1/2 tank of gas at the time. After about 2 minutes we started the engine back up and continued on with our trip. Fifty miles done the rode, it happened again. After two minutes we restarted the car and were able to drive to our destination without incident. I must add that this incident happened two times before (when the car was fairly new and under warrenty) when the gas was at 1/4 and 1/8 of a tank respectively. We vowed never to let the gas get below 1/4 again. We were told by a mechanic that on a turn the gas probably shifted and because it was low the gas did not get through to the engine. This time (aug. 22) it happened with a half of a tank of gas with very heavy traffic. We were very lucky not to have had an accident. …
Tl contact owns a 2000 Mercury Mystique. The contact experienced engine hesitation, loss of power, and surging in her vehicle. She would lose all power and have to wait a couple of minutes before the vehicle would restart. The contact could only drive five miles before the failure recurred. The failure occurred when the engine was warm or hot. She took the vehicle to a local garage and they stated that the fuel pump was defective. The current mileage was approximately 56,000 and failure mileage was approximately 55,600.
I recently bought a 1999 Mercury Mystique. At 68,900 miles the fuel pump on the car failed. I was in the process of getting it fixed and my mechanic showed me the old fuel pump after he'd removed it from the car. The ground wire was basically fused to the side of the plastic which my mechanic assured me should not be the case. I was told that it could have caused an explosion at any time. I will be lodging a formal complaint with the Ford/Mercury company as well but I thought that anyone else who owns a car of this type should know about this danger as well.
1999 Mercury Mystique, second owner, purchased is 2005. The gas line freezes when the temperature reaches below 20 degrees. The tank is half full, treated for winter weather and it still freezes. This is not normal: I've owned 2 other vehicles (Ford tempo/Dodge stratus) never happened. I've missed work due to this gas line freeze and am the only resident in my neighborhood that is having this problem. It has to be a manufacture defect or the gas tank is not protected. This is the second winter season this has happened.
Recall on a fuel filler neck valve for a 98 Mercury Mystique, gas being unable to flow freely into gas tank,spits gas back out on you. August is the first time I knew there was a recall. Ford says my VIN # wasn't on recall , but the part is defective anyway.( dangerous ) occurs everytime you try and put gas into car. They put a canister vent valve on which was not the problem. They kept the old part that was good. Problem is fuel filler neck valve.
Unable to put fuel into car. Fuel kicks back and overflows onto the ground. If you refuel slowly you can get about 3 dollars into car in about 15 minutes. Usually end up with more fuel on the ground then in the car. Additionally fuel ends up in the rear wheel well of the car, concerned about gas on rear wheel well in case of a rear end accident.
I first started smelling fuel after fueling up my car. Then later I noticed that fuel leaks out from under my car when I put fuel into it. I recently noticed it running out from under the car when I just happen to fill up at a gas station that was on an incline. I took the car to a dealership and they said that the Ford recall #99s24 does not apply to my car. But.... It is what problem is. Help please.
Dt*: the contact stated there was fuel leakage when the vehicle was being fueled. There is a NHTSA recall, # 99V247000, regarding the fuel system gasoline storage tank assembly filler pipe and cap. The VIN was not included in the recall. Although the manufacturer was alerted, no inspections have been made.
Related recalls (4)
Fuel system, gasoline › Storage › Tank assembly › Filler pipe and cap
Vehicle description: passenger vehicles. The fuel filler pipe vent hose May have less than the intended level of ozone resistance, which could result in the hose becoming brittle and cracking.
Remedy: Dealers will install a fuel filler vent hose contacting the appropriate blend of pvc and nitrile rubber.
Fuel system, gasoline › Storage › Tank assembly › Filler pipe and cap
The fuel tank filler pipe opening reinforcement, constructed from two separately molded pieces, can leak at the weld.
Remedy: Dealers will replace the fuel tank assemblies with units containing one-piece molded reinforcements.
Fuel system, gasoline › Storage › Tank assembly › Filler pipe and cap
The fuel tank filler pipe opening reinforcement can leak at the weld.
Remedy: Dealers will inspect and, as appropriate, replace the fuel tanks.
Fuel system, gasoline › Storage › Tank assembly › Filler pipe and cap
A metal shield on the outside of the plastic fuel filler pipe can develop a static electrical charge during refueling of the vehicle.
Remedy: Dealers will inspect and, if necessary, modify the vehicles by adding a ground strap between the filler pipe shield and the body.
Frequently asked questions
Which Mercury Mystique years have fuel system problems?
By NHTSA complaints, the 1995 (31), 1996 (14), 1998 (9), 1999 (7) and 2000 (7) model years. Fuel System complaints make up 9% of all complaints for the 1995.
Is there a recall for Mercury Mystique fuel system problems?
Yes — 4 recalls, including 99V-247 (filler pipe and cap, Sep 13, 1999); 95V-232 (filler pipe and cap, Dec 5, 1995); 94V-203 (filler pipe and cap, Oct 18, 1994). Recall repairs are free at authorized dealers; check a specific car with the VIN recall check.
At what mileage do Mercury Mystique fuel system problems start?
Across all years, half of the complaints with a recorded mileage happened before about 72,000 miles; 14% happened before 50,000 miles.
What part fails most often?
Owners most often name the storage › tank assembly › filler pipe and cap (23 mentions), followed by the storage › tank assembly (23).
Source: U.S. National Highway Traffic Safety Administration (NHTSA) — owner complaints through October 20, 2026, recalls and defect investigations; fuel economy from the EPA. Complaints are unverified reports and are not proof of a defect. How we rate model years.