Lincoln Zephyr owners have reported 7 problems related to vehicle speed control (under the vehicle speed control category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of Lincoln Zephyr based on all problems reported for the Zephyr.
The car has 82,000 miles on it. The throttle position sensor seems to be acting up. After researching this issue on the net, it appears this has been an issue since 04 with fords. In addition, they are on the 3rd generation sensor. I was driving normal speeds, then the warning light came on, killing the power to the engine, put me in a precarious situation on a 45 50 mile an hr road. Since this known issue since 04, seems like Ford should replace this. It's a 20 dollar part, retail, but with this motor, you have to buy a totally rebuilt throttle body for 200+. It is dangerous because it can slow the car right down as you are driving. If you shut the motor off, it 'repairs' itself and works normally.
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The car accelerates and loses speed on side street and highways. This is very dangerous because of loss of speed control.
Car constantly speeds up and slows down during shifting process. It is unsafe because it happens on highways and streets it almost caused multiple accidents. I have been terrified to even drive this car. This happens every time the car is driven.
I was leaving my doctors on February 21,2019 I walked out to parking lot to start and it made a noise that I didn't recognize so it finally started after 3 attempts so when I got going it had rough it was fine when I left the house with it but on my way the check engine light came on so I decided to stop and have it checked the scan showed 3 cylinders 4 /5/6 misfiring so I replaced the coils and spark plugs but what caused the problem was it that the timing chain had jumped time causing the cylinders to misfire and also loose power it died in traffic twice on my way home causing a serious accident. I was on a public street with lots of traffic.
When accelerating the vehicle hesitates ,makes a loud clunking noise and whines like the gear is stuck shifts very hard which causes the the vehicle to lose power causing speed to go to a crawl, which is very very dangerous in any traffic especially, when I m on the highway and in interstate traffic. This happens very frequently.
Car has a hard time accelerating/switching gears whole driving in city or on the hwy. . . Causing the engine to buck. This has been ongoing since I've owned the car. At times my airbag light comes on. . . Something to do with the sensors malfunctioning.
Car speeds and slows down on its own on highways and side streets it is very dangerous.
| Problem Category | Number of Problems |
|---|---|
| Vehicle Speed Control problems | |
| Speed Sensor problems |