Owner-reported complaints naming the engine system, filed with NHTSA
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Reports naming the engine itself — including stalling, misfires, oil consumption, cooling and internal engine components. Every record below is an owner-reported complaint about the 2017 Ford Explorer submitted to NHTSA — not a confirmed defect, not a recall and not a manufacturer bulletin. 300 reports on file name it.
Complaints are reports submitted by owners and drivers to NHTSA. They are not verified and do not establish that a defect exists.
The 25 most recent of 300, in the owner's own words
Driving down the highway and checkengine light came on when I was headed to work. The vehicle lost power due to misfire with engine. I check the spark plugs and there is oil all over sparkplugs and the coil packs. This is a serious issue and needs to be addressed by ford immediately, they need to put a new engine in or pay me to get this fixed.
A strong exhaust smell comes through the cabin during acceleration at speeds higher than 35 mph. Worries us for possible co2 exposure coming through if exhaust smell can come through. But ford dealership has said it passes the recall standards. Still uneasy
The contact owns a 2017 Ford Explorer. The contact stated that while driving at an undisclosed speed, there was smoke coming from underneath the hood with the Check Engine warning light illuminated. The vehicle was driven to the shoulder of the road, and the contact inspected the vehicle and became aware of smoke coming from underneath the vehicle. The failure reoccurred while the contact and the contact's minor children were traveling. A nearby Police Officer assisted the contact. The contact informed the officer that the vehicle was recently purchased from a CarMax. The contact was advised to take the vehicle to the nearby CarMax. The vehicle was taken to CarMax, where the vehicle was diagnosed with engine failure. The contact was informed that the engine had severe fluid leaks. The vehicle was repaired. The vehicle was shipped back to the residence a month later. The failure reoccurred and was a persistent failure. The contact stated that the vehicle was taken back to CarMax twelve times due to the failure. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 86,000.
Car was running fine then went to start and received warning about car being too hot. Checked coolant and it was low. Refilled and drove home. Upon arriving engine light came on. PO301 code. There was coolant intrusion into the cylinders, leading to engine failure. Rough idle when starting. Did not drive after this. Went to start and car will not start at all. Symptoms include: Coolant loss with no visible leaks White exhaust smoke Rough idle or misfires P0300 / P0301 / P0302 codes Hydro-locked or destroyed engines
I’ve had three transmissions replaced from 2023 to 2026. Ford no longer makes 2017 Ford Explorer transmissions so I keep getting bad parts. In 2026 engine light came on , coolant leaking into cylinders, $11K to fix. This car has left me stranded on the side of the road , not to mention months at the dealership trying to find transmission parts. Ford Corporation refuses to buy back vehicle based on lemon law. Rear seatbelts defective.
Car started to overheat randomly, no signs of issues before, replaced the water pump for the second time in a year (2025 and again 2026). Continued having issues & white smoke puffing, turned out to have an oil leak due to piston rings being melted to the pistons, causing all spark plugs (prior repalced) and engine to be bad. Car is continuing to worse, sputters just sitting after you start it. Smells like burnt oil. Too dangerous to drive so it’s been sitting for weeks after pouring $3,000 into it to not have it fixed and now needing a new motor.
Coolant keeps going low. No visible leaking spots. Been to 2 mechanic's. Both said Ford defective engine block. Coolant leaking into cylinder 1. Recommended engine replacement. Check engine light. Verified 300 # codes. Misfire. Foul and rough start ups. Been on 4 or 5 months.
My 2017 Ford Explorer suddenly started vibrating intensely whenever I am at a stop or start slowing down. Episodes of hesitation when attempting to take off from a start with significant rpm surges. I am told I need to have my torque converter replaced. My vehicle has 84,697 miles on it, and was bought brand new from a dealer. I already had to have a new engine a month ago. This level of multiple engine and powertrain failures puts consumers and other drivers at risk for harm on the roadway. Not to mention the economic and employment impacts it has on the vehicle owners.
I am reporting a serious safety concern with my 2017 Ford Explorer. The vehicle currently has approximately 93,752 miles and has become increasingly unreliable and unsafe to operate. On April 9, 2026, while my wife was driving home from work, the vehicle overheated, creating a dangerous situation and risk of sudden breakdown. This is especially concerning as the vehicle is used to transport children. Recently, after taking the vehicle in for an oil change, I was informed of multiple additional problems (three separate issues) affecting the vehicle. In addition, the check engine light remains on continuously, even after attempted repairs, indicating unresolved underlying problems. I have also previously attempted to have a recall repair completed, but was told that the necessary part was unavailable and that I would be contacted when it became available. Months later, I have still not been contacted, and the recall issue remains unresolved. Based on my experience and publicly documented issues, this appears consistent with known defects associated with this model, including reported water pump failures leading to engine overheating, rear suspension issues affecting control, and concerns regarding exhaust fumes entering the cabin. This is not normal wear and tear, but a potential safety-related defect. It is a serious concern that known recalls and defects cannot be repaired due to lack of available parts, leaving the vehicle in an unsafe condition. I am also concerned about the risk of continuing to operate this vehicle and potentially causing an accident that could injure myself, my family, or others on the road. This risk is heightened by the lack of timely communication and resolution regarding known defects and recalls. I am requesting investigation into these issues to prevent harm to drivers and passengers
Vehicle experienced white exhaust smoke due to oil entering the exhaust system, caused by turbocharger failure. This led to contamination and failure of all O2 sensors, requiring full replacement, along with replacement of both turbochargers. The radiator also failed and had to be replaced. This appears to be a cascading mechanical failure affecting multiple major systems, including the engine, fuel/propulsion system, and electrical components, rather than normal wear and tear. The failure rendered the vehicle inoperable, leaving me without transportation during a period of financial hardship. The severity and extent of repairs raise concern about a potential broader defect. This also created a safety concern due to excessive exhaust smoke and reduced vehicle reliability while in operation.
1 WATERPUMP FAILED AND LEAKED WATER INTO MY OIL AND BLEW MY ENGINE. THERE WAS NO WARNING. MY CAR HAD NO POWER AND I COULD NOT DRIVE. I WAS ON THE SIDE OF THE ROAD. THE WATERPUMP IS NOT A RECALL BUT THERE ARE ALOT OF PEOPLE WITH THE SAME ISSUE ON THE SAME MODEL . THE ENGINE WAS REPLACED AT MY EXPENSE. 2. PILLAR/TRIM RECALL IS NOT FIXED AND WATER IS GETTING INTO THE INSIDE OF MY CAR AND SHORTING OUT MY PLUGS AND WIRES AND STAHLING MY CAR WHEN IT RAINS. NO WARNING SIGNS OR LIGHTS FOR EITHER PROBLEM. THE CAR HAS BEEN INSPECTED FOR THE RECAL . I WAS JUST TOLD FORD HAS NOT PROVIDED A REPAIR SOLUTION FOR THE PROBLEM. THIS RECAL IS FROM 1/19/2024
Oil is leaking onto my spark plugs and fouling them out. Also took my car into dealership and parts are not available for the recall for the rear toe links.
The 2011 to 2019 Ford Explorers have a huge issue with them. The internal water pump on my 2017 Ford Explorer 3.5L engine failed. The failure caused coolant to leak into the engine crankcase, where it mixed with the engine oil. This contaminated the oil and led to catastrophic engine failure and seizure. The vehicle has already been brought to a dealership for service and is available for inspection upon request. This failure created a serious safety risk because the engine could have seized suddenly while the vehicle was in motion. If I had not caught the issue early, it could have resulted in a complete engine shutdown without warning, leading to loss of power, reduced steering control, and inability to accelerate in traffic. I have a strong understanding of vehicles and was able to recognize the warning signs, but the average driver would likely not identify these symptoms. Without that knowledge, this type of failure could easily occur without warning and put both the driver and others on the road at significant risk. Yes. The issue has been confirmed by both an independent mechanic and the dealership as a failed internal water pump. Coolant was beginning to leak internally into the engine and oil pan, where it mixed with the engine oil. The symptoms—coolant leaking near the oil pan, loss of coolant, lack of heat, and eventual engine failure—are consistent with this type of failure on this engine. The vehicle has been inspected by both the dealership and my independent mechanic. It is currently at the dealership for service and remains available for further inspection if needed. There were early symptoms, including a coolant leak, bubbling in the coolant reservoir, and loss of heat inside the vehicle. However, there were no clear warning lights or alerts indicating imminent engine failure. The engine did not overheat prior to failure, and the final seizure could have occurred suddenly without adequate warning. These symptoms only appeared about one day prior
The car was up on ramps, to replace a sensor, in park and slipped out of gear rolling backwards with force. Someone could have been under or behind the vehicle. Other vehicles could have been behind, property could have been damaged. The cars door caught the building and pulled it all the way back against the front fender.
Vehicle was brought to an authorized Ford dealership for coolant leak. The dealer confirmed a coolant leak originating from the internal water pump. The water pump on this engine is chain-driven and located inside the engine behind the timing cover, requiring approximately 12 hours of labor to access and replace. This is a known design defect affecting millions of Ford vehicles with the 3.5L Cyclone/Duratec engine across multiple model years (2007-2020). The defect allows coolant to leak past the bearing seal, with potential to mix with engine oil and cause catastrophic engine failure. This is a serious safety risk as failure can occur without warning while driving. The problem was confirmed and documented by the Ford dealership. No warning lights appeared prior to the leak being discovered. Repair cost exceeded $4,300. This defect was the subject of a federal class action lawsuit (Roe v. Ford Motor Company, Eastern District of Michigan) which was settled confidentially in January 2024 without a recall being issued. Ford has not notified owners of this known defect or offered any remedy program to US customers, despite a Canadian class action resulting in relief for affected owners there. I am providing the cost invoice but will provide an itemized invoice once repairs are finished.
October 2025 check engine light came on, took to mechanic showed misfire in cylinder two and three. Replaced all plugs and coil packs, engine light went off. Engine light came back, hard start on November 26,2025 showed misfire in cylinder 2 and 3. Replaced those coil packs again, engine light off. February 2, 2026 engine light back on, hard start with vibration. Took vehicle to Mtn View Ford in Chattanooga to have diagnostic test done. Received call on February 9,2026 that the engine was in complete failure, coolant leaked into the cylinders, would require a $12,000 new engine at 84,328.6 miles on the vehicle. The vehicle had not been driven more than 50 miles per week in the past two years, had on time maintenance.
UNKNOWN
There is an odor in the passenger cabin. Seems unsafe
Complete failure of the water pump at 58000 miles.
The contact owns a 2017 Ford Explorer. The contact stated that upon taking the vehicle for an annual smog check, the check engine warning light was illuminated on the instrument panel. The vehicle was taken to the dealer, where a diagnostic test was performed. The diagnostic showed that the VVT (Variable Valve Timing) connected to the timing phasers had fractured and needed to be replaced. The contact was provided with an estimate for the repair. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 73,838.
Ya me marco el funcionamiento del motor
It is known that for the specific year make and model that the water pump goes out around 100,000 miles. This water pump was built as an internal water pump, which is not typical for most cars. in order to fix this part, the engine has to be taken out and lots of parts have to be disassembled Just to get to it. The part Itself is fairly cheap, but the labor cost thousands of dollars due to where it is located. Ford knowingly built this car and put that pump where it is at and therefore should be reliable to pay the cost when it is so common that this part goes out around 100,000 miles. if it is a known issue that occurs on these models frequently then it should become a recall because a failing water pump can cause significant issues within the engine and make the vehicle in operable.
The contact owns a 2017 Ford Explorer. The contact stated that while driving approximately 55 MPH, the message “Engine Overheating” was displayed. The contact pulled over to the side of the road and allowed the engine to cool down. After restarting the vehicle, there was an abnormal clicking sound coming from the engine compartment. The contact then noticed a fluid leak underneath the front of the vehicle. The vehicle was towed to the mechanic and the mechanic diagnosed the vehicle and determined that the water pump was leaking, causing the engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The contact discovered that the failure was a known issue; however, the VIN was not under recall related to the failure. The dealer was contacted and confirmed that there was no recall on the VIN related to the failure. The manufacturer was not informed of the failure. The failure mileage was approximately 190,000.
The contact owns a 2017 Ford Explorer. The contact stated that while driving at various speeds, the vehicle was driving roughly, with white exhaust smoke coming from the vehicle. The contact stated that the check engine warning light was illuminated. The vehicle was taken to the local dealer, who diagnosed that there was coolant intrusion in the engine. The contact was informed that the engine needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 110,000.
The contact owns a 2017 Ford Explorer. The contact stated while driving at an undisclosed speed, there was an unknown warning light illuminated. The vehicle was taken to an independent mechanic where it was diagnosed with a failed coolant pump. The contact was informed that the coolant pump needed to be replaced. The vehicle was not repaired. The contact was advised to tow the vehicle to the dealer. The dealer was made aware of the failure. The manufacturer was made aware of the failure but provided no assistance. The contact was advised to contact the NHTSA Hotline to report the failure. In addition, the contact was informed that NHTSA would add the VIN to an unknown recall with similar failure. The failure mileage was approximately 93,000.
Higher-selling and older vehicles accumulate more reports. Counts are not failure rates and are not directly comparable between vehicles that sold in very different numbers.
Categories with enough reports to have a page of their own
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