Ford Flex won't start problems

Filed Jul 22, 2026 · Fuel system · KS

Hello, I was driving my Ford Flex at 60mph yesterday with my 15 year old friend helping me move. The engine completely died for several seconds and continued running. That night the engine was idling rough which was a new symptom. Today, I made it to my destination and the car died, then it did not start after cranking. The Fuel pump module Aa8a-9d412-ca was faulty and now I am out $142+ from Ford to replace a part myself that is a known problem on the Ecoboost engines for this vehicle. This is a liability and I am seeking reimbursement for this known issue. Please issue a recall for this fuel pump module, everyone's safety is at risk that still has this faulty part installed that Ford has not addressed. Thank you for your time.

Filed Dec 9, 2025 · Electrical · KS

You can be driving down the road, and all your gauges will stop working, and all the warning lights on the dash will light up. The first time this happened my wife got stuck at a gas station all the warning lights were on and the car would not start, people tried to jump it and it would not affected at all. I looked on the internet and found were someone said to beat on the passenger side floorboard, I called my wife and told her to try that, and when she did the car would start. It doesn't do it all the time, you never know when it's going to happen. We have to just stomp on the passenger floor to get everything to start working again. If I had not found this information from somebody else on the internet my wife would have been stuck about a hundred miles from home. I've taken it to the Ford house and they say they've never heard of anything like this but I know it's happened before two other people that's how I knew to stomp on the floorboard on the passenger side.

Filed Jan 4, 2023 · Electrical · NH

Vehicle would not start after 3 days of not being started or driven. After having the battery jumped the climate control unit malfunctioned. The heat would not turn off and stayed on full blast. This caused the car to overheat and difficult to drive even with the windows down. When brought to the dealership service center, they replaced the heater blower. This fixed the issue temporarily. Then the heat stopped working and in single digit temperatures the vehicle was too cold to drive. The dealership replaced the resistor. This again became a temporary fix. The heat came back but then the vehicle battery kept draining. Having some type of electrical issue put the vehicle at a possible risk for short circuiting, catching fire etc. This is an ongoing issue with ALL YEARS of the Ford Flex. When the vehicle is jump started this causes an electrical short affecting the climate control system but also the entire communication system. .

Filed Oct 20, 2022 · Electrical, Engine · CA

Approximately 2 months ago car would not start. Towed to dealer on Friday. Dealer evaluated it on Monday but car resumed starting. Retrieved car. This morning problem returned. Having already done a lot of research on this apparently common issue it seems most of the time it is the fuel pump control module located behind the plastic trim on the passenger side B pillar. A replacement part was acquired from a Ford Parts Dealer and installed into the car. Car starts and runs fine now.

Filed Aug 2, 2022 · Electrical, Steering · OH

The universal joint at the end of the steering column failed causing the vehicle to become difficult to steer. and The fuel pump module failed causing a no start situation

Filed Mar 12, 2021 · Fuel system · TX

Vehicle cranks but won't start. Code reader reads p0627 fuel pump control circuit open. The vehicle was in motion and then stopped. I had my tank almost full.

Filed Feb 22, 2021 · Fuel system · 125,000 miles · AR

My "fuel pump module" on my non eco boost 3.5 suddenly stopped functioning. The same module was recalled on the eco boost 3.5 engine. I had just driven 800 plus miles in two days and the engine worked perfectly. Two days later, it would not start, while parked in the driveway. A day later it started. A day after that it would not start, again while parked. I googled the problem and replaced the part, and it has worked perfectly ever since. It would have been a real issue if it had failed while driving through west texas during the sub zero freezing temps.

Filed Oct 8, 2020 · Fuel system · 110,000 miles · IL

Vehicle suddenly shut down causing the vehicle to stall and now won't start. Seems like our vehicle has no power going to the fuel pump. This happened while driving down the road. Vehicle now will not start but does still have lights come on. Acts like its not getting fuel.

Filed Mar 3, 2020 · Fuel system · 56,450 miles · KS

I was driving and the car stopped all of a sudden in the middle of residential street at 6 am and when I tried to re-start it, it would crank but would not turn over and start back up so I could move it. I had to push it out of the middle of the street. I had to have it towed to the shop and they said it was the fuel pump control module.

Filed Dec 11, 2019 · Fuel system, Lights · NY

Now replacing the fuel modual sensor for the 3rd time in 5yrs. This is a known issue for other ford vehicles. Car will not start and needs to be towed each time. Front passenger door sensor doesn't work and interior light remains on until vehicle reaches 10mph. Interior light will not turn off and battery drains.