2017 Ford Explorer: engine overheating

Filed Oct 24, 2026 · Transmission · CO

About 3 years and 3 months after a Power Control Module reflash was done in March 2021 under the Customer Satisfaction Program (CSP) 20B27, vehicle was brought to Ford dealership on 06/07/2024 with mileage at 79,730 for multi point inspection due to vehicle runs rough and hard time accelerating. Diagnostic code was P0316. Service tech recommendation was to replace engine for $14,000.00 including parts and labor (declined recommendation). Brought vehicle to another dealership but found no codes. Instead replaced engine motor mounts, sparkplugs, and air filter due to noticeable vibrations. Dealership service tech inspected engine but found no abnormal findings. Went to another Ford dealership on 10/08/2026 to check Code P0299 that appeared on OBD test and for further inspection due to sluggish acceleration from full stop and slows down going uphill. Ford's guidance stated that torque converter failing due to mileage, acceleration/power loss from dead stop. Recommended fix was to replace the transmission for $8,461.03 (declined recommended service). On 10/23/2026, I picked up my vehicle from the dealership. During my return journey from the dealership, I encountered the same sluggish acceleration. A safety hazard that is attributed to a malfunctioning torque converter, a know problem for Ford. Consequently, Ford dispatched CSP 20B27 to assist in safeguarding the transmission converter from overheating. Regrettably, this intervention proved ineffective in mitigating the problem. Ford issued CSP 20N07 to extend warranty coverage of the automatic transmission torque converter for 12 months from RO date which in my case, RO date on CSP 20B27 was 03/19/2021. Despite the 12-month eligibility period not being met, my vehicle should have remained covered. Initially, Ford was aware of a transmission torque issue and was attempting to resolve it through CSP 20B27 and CSP 20N07. Currently, mileage is at 85K miles but I'm hesitant to drive due to safety concerns.

Filed Jun 9, 2026 · Engine · OK

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

Filed May 27, 2026 · Engine, Seat belts · CA

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.

Filed May 26, 2026 · Engine · MO

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.

Filed May 3, 2026 · IL

I am filing a safety complaint regarding my 2017 Ford Explorer XLT with the 3.5L V6 engine due to a known internal water pump design defect. The water pump is located internally and driven by the timing chain. When it fails, coolant can leak directly into the engine crankcase and mix with motor oil instead of leaking externally where it would be easier to detect. This creates a serious safety hazard because the engine can suffer catastrophic damage, sudden failure, loss of power, or complete shutdown, sometimes with little or no warning. In my case, the vehicle experienced symptoms consistent with internal water pump failure, including my car overheating out of nowhere, forcing me to coast to the side of the highway in very unsafe conditions. This defect can destroy the engine and create dangerous driving conditions, especially if power loss occurs while driving with children or passengers, thankfully I didn't have any of my three children with me when this happened. This appears to affect many Ford Explorer vehicles from similar model years, and numerous owners have reported similar failures. The repair cost is extremely high because replacement often requires major engine disassembly or full engine replacement. I am currently financing this vehicle with a balance of $14,000 left to pay and have already paid close to $28,000. This is extremely unfair and the cost to repair is close to $5,000. I don't see a way for myself to afford that. I believe Ford should be required to address this issue because: The design can allow coolant contamination inside the engine without obvious external leakage. Failure can occur suddenly and create safety risks. Repair costs are excessive for what appears to be a widespread defect. Owners may not receive sufficient warning before catastrophic failure. I am requesting that the federal safety agency investigate this defect for safety implications and determine whether a recall or broader manufacturer accountability is warranted. Thank you for your time.

Filed Apr 19, 2026 · Engine · OH

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.

Filed Apr 15, 2026 · Body, Engine · CA

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

Filed Mar 23, 2026 · Engine · MA

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

Filed Mar 12, 2026 · Engine, Transmission · CA

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.

Filed Mar 11, 2026 · Engine · GA

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.

Filed Aug 22, 2025 · Engine · 190,000 miles · KY

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.

Filed Jul 15, 2025 · Engine · 192,000 miles · MI

The contact owns a 2017 Ford Explorer. The contact stated that while the vehicle was idling, the temperature gauge indicated that the engine was overheating. After a visual inspection of the engine compartment, the contact observed that the coolant reservoir was almost empty, even though the vehicle had just been serviced. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the water pump. The vehicle was repaired. The contact also stated that the water pump had failed and was replaced in February 2023. The manufacturer was notified of the failure and referred the contact to the federal safety agency Hotline for assistance. The failure mileage was 192,000.