Engine And Engine Cooling Problems of Ford Explorer - part 1

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.

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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.

The contact owns a 2025 Ford Explorer. The contact stated that while driving at an undisclosed speed, the vehicle started shaking violently. The check engine warning light came on, and the vehicle lost motive power and stalled. The contact used a scanner to identify an error code. The contact was able to restart the vehicle and drove to the residence while driving 20 mph with the vehicle shaking abnormally. Upon arriving at the residence, the vehicle lost power. The contact called Ford customer service and spoke with a Ford roadside assistance representative to retrieve the vehicle from the residence. An appointment was scheduled for the dealer to pick up the vehicle at the residence. The vehicle was taken to ciocco Ford, but was not diagnosed or repaired; however, the spark plugs were replaced but the failure persisted. The manufacturer was made aware of the issue. The approximate failure mileage was 9,000.

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On 2/27/26 I heard a knocking sound in my car, no warning lights came on, took it to local car place and was told there was no oil in the tank. I immediately made an appt to take it to river view Ford dealership for service. They looked at it on 3/2 and found the engine to be damaged from the turbos pulling oil out of the oil tank and sucking it into the engine. They informed me nothing was being offered to replace the engine for that year 2020 and my warranty just ended 11/25. This car is worth $70,000 new, just paid it off early, otherwise in great condition. I called the customer service line and was told there is nothing they can do or offer and filed the complaint. My husband called back and spoke to 3 different rude people requesting someone call our dealer and talk with the service people- this didn't happen. Earlier this year this car had a differential leak that cost $3000; it also had the undercarriage of the car that holds the flex pipes up, fall apart and required the entire undercarriage to be replaced. I find it appalling that you google st engine issues and they specifically say 2020 models have issues with and suffer from severe oil-related issues, including high oil consumption, oil starvation, and, in some cases, turbocharger failure or engine knocking. How is this not a recall? no warning signs til its too late.

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I am submitting a formal safety complaint regarding a severe design defect in the 3. 5l v6 engine of my 2013 Ford Explorer. The vehicle is equipped with an internal, chain-driven water pump that is currently failing at 100000 miles, as evidenced by coolant actively draining from the factory weep hole. Because this pump is located inside the engine block and driven by the timing chain, a complete seal failure dumps engine coolant directly into the oil pan. This is a critical safety hazard. When the coolant and oil mix, it destroys the engine bearings and causes the engine to completely seize without warning. If this sudden engine seizure occurs while driving at highway speeds, it results in an immediate and total loss of motive power, power steering, and power brakes. This defect creates an extreme crash hazard for the occupants of the vehicle and other drivers on the road. The internal weep hole provides virtually no dashboard warning or indicator to the driver before this catastrophic failure occurs. I am requesting that the NHTSA investigate this known, dangerous design flaw to force a mandatory safety recall before this sudden loss of vehicle control causes severe injuries or fatalities.

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Upon startup rough idle and check engine light came on. Mechanic confirmed cylinder head thinning causing fluid leak into first cylinder. A mechanical note verifies but Ford won't issue a recall. Apparently Ford has know this for years with ecoboost engines. I don't want to become a victim of vehicle dying in the middle of traffic. Have seen several complaints from Ford owners with no fixes by Ford.

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When I'm driving on the freeway. I could be on flatland and it will stall, I could be going down a hill and it stalls, I could be on a regular road, turning a corner, hitting a bump. And it stalls when I'm on the freeway, I have to get over very scary happens all the time when it happens I coast, I put it into park, I turn it off, and it restarts immediately every time. This is constantly happening. Ihave a video and picture but it will not upload on this. But it says hell descending control fail.

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I am writing to formally report a series of catastrophic and life-threatening mechanical and electronic failures in my 2025 Ford Explorer active (VIN: [xxx] ]), purchased in bogotá, colombia. Despite immediately notifying the Ford post-sales support line after the first incident, the technical response was insufficient, leading to a second, more severe event that nearly resulted in a fatal high-speed collision on February 9, 2026. Incidents summary: 1. Total power loss: engine and all electrical systems shut down while in motion (40 km/h), losing steering and braking assistance. 2. Brake system failure: at 70 km/h, the vehicle presented a multi-system failure of sensors, audible alarm and illumination of warning lights (abs, traction control, pre-collision assistant, hill start assist not available, check brake system, brake, esc check, driving modes not available). The vehicle experienced a total loss of brake pedal response followed by a sudden, uncontrolled autonomous "hard braking" event. This happened on a high-traffic highway (autopista norte). Global safety concern: I am formally requesting a global technical investigation into this unit and the 2025 Explorer active series. The failure of the electronic brake booster and the total system shutdown represent a "product liability" risk that could lead to mass-casualty events. I demand: • direct intervention from Ford global to Ford colombia. • a formal safety alert or recall investigation for similar units. Sincerely, [xxx] mail [xxx] bogota colombia phone [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Engine light activation code: p0430 catalyst system efficiency below threshold bank 2.

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The contact owns a 2018 Ford Explorer. The contact stated that after the vehicle was idling at a traffic stop, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The check engine warning light illuminated. The contact pulled over to the side of the road and turned off the vehicle. The vehicle was restarted; however, the vehicle stalled after driving several minutes. The vehicle was towed to an independent mechanic who diagnosed the vehicle with engine failure and determined that the engine needed to be replaced. The vehicle was not repaired due to the cost. The vehicle remained with the independent mechanic unrepaired. The manufacturer was not made aware of the failure. The approximate failure mileage was 162,000.

Unknown.

The contact owns a 2021 Ford Explorer. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The contact's husband, who was an independent mechanic, used a diagnostic machine to diagnose the vehicle and discovered a failure with the emissions system. The contact stated that the failure was like the failure listed in NHTSA campaign number: 25v455000 (fuel system, gasoline); however, the part to do the recall repair was not yet available. The manufacturer was not made aware of the failure. The failure mileage was approximately 80,000.

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I own a 2020 Ford Explorer with approximately 85,776 miles. The vehicle has experienced two separate loss-of-propulsion events in traffic. On both occasions, the vehicle suddenly lost power while driving and stalled in the middle of a busy intersection. There was no prior warning of imminent engine failure. After stalling, the vehicle would crank but would not restart. The vehicle was disabled in the intersection for approximately 45 minutes to one hour each time. My family was inside the vehicle during these incidents. The vehicle displayed multiple malfunction warnings including “shift system fault” and messages indicating the vehicle was not in park even when the shifter was in the park position. The dealership, hansel Ford of petaluma, verified the concern and referenced Ford technical service bulletin (TSB) 23-2249 related to internal transmission components, including the valve body and park pawl actuator system. The dealership confirmed that when the vehicle is placed in park, it may actually remain in neutral. This creates an additional safety risk of unintended vehicle movement. This issue presents a serious safety hazard due •sudden loss of propulsion in traffic •vehicle disabled in active intersections •extended inability to restart •potential rollaway risk due to park malfunction the vehicle is currently pending major transmission-related repairs. I am submitting this complaint due to concerns about loss of propulsion and park system malfunction creating a safety risk for occupants and surrounding traffic.

The specific component or system has not fully failed. However, my vehicle is currently experiencing an intermittent check engine light condition, turning off and on, which was diagnosed at a retailer producing code p0018 then at the dealership and produced code p0017. The codes relate to the engine control module (ecm) detects that the camshaft on is out of sync with the crankshaft resulting in misaligned engine timing. I have requested that the dealership further review and escalate the diagnosis to determine whether the issue aligns with any known concerns, technical service bulletins, or manufacturer-supported programs. The vehicle and any related components are available for inspection upon request. At this time, the vehicle experiences reduced engine performance, including stalling, and inability to accelerator as needed, which pose a safety risk while driving, particularly in traffic or at highway speeds. The vehicle has been inspected and confirmed by the dealership. I have also contacted the manufacturer, who advised me to work directly with the dealership to have the issue reviewed and potentially escalated. I have since requested that they further evaluate the condition and determine whether it corresponds to any known issues or manufacturer-supported repair programs. At this time, the vehicle has not been inspected by police, insurance representatives, or other third parties. This check engine light and fluctuating rpm directly impacting the vehicles acceleration was the primary indicator of the issue. The manufacturer previously issued two customer satisfaction program notices to address this issue for other model year vehicles. I have attached both notices to this complaint. This demonstrates a manufacturer defect which is a safety hazard for drivers.

I was informed by the dealership that the engine issue with my 2021 Ford Explorer is the same issue for which a recall was issued. However, because my vehicle’s VIN was not included in the recall, I was required to pay for the engine replacement. I attempted to work with the dealership to have them coordinate with the manufacturer, but they declined to do so. I then contacted the manufacturer directly to file a complaint and request a review of the issue. I was advised that there was nothing they could do because my VIN is not listed under the recall. I am requesting that the manufacturer investigate this matter further and reimburse me for the repair costs if it is determined that the issue is applicable to my vehicle.

While driving the crankcase sensor malfunctioned and caused my vehicle to stall without warning, this is a safety issue because of you are driving at highway speeds this will prevent the vehicle from being controlled properly to get to the side of the road. This sensor does not give any engine codes suggesting that it needs replaced until it goes out completely. The check engine light did not come on until after the component failed. I ordered a new part directly through Ford and even they said "yes that part will go out without any warning at all and will shut the engine down completely". When this sensor went out, it also caused pressure to build up in the engine which in turn has led to several other components that now need to be replaced. I have a had a mechanic look at it, and it now requires a turbo intake hose and a new turbo because the pressure that was built up in the engine due to the crankcase sensor going out burst the turbo intake hose and prevented the turbo from working correctly. It's approximately $4,000 in repairs due to a $150 part going out.

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Leaking water pump that if isn’t repaired will cause catastrophic engine failure. Very expensive repair, $2800 because of internal placement of the pump. Since the water pump is in line with the crankshaft and located over the main body of the engine, it allows coolant to leak from the water pump into the oil pan. Mixed coolant and oil will lead to engine failure.

- I have experienced a sudden loss of engine power and speed on 5 occasions. Very scary and dangerous to completely lose power on the highway with cars behind you. Had to pull off onto the shoulder(s) in dangerous conditions, with two young kids in the backseat. Hazards, turn off the car, restart the car, etc. - when the power loss happens, the vehicle's dashboard lights turn on, including the engine and wrench icons along with the words "see manual. " - based on my research, I believe it may be due to a defective throttle body and/or software, related to the "terrain management system. " - problem was not reproduced or confirmed by a dealer or independent service center - no inspections by the manufacturer, police, insurance representatives or others - no warning message is provided prior to the failure, which is another issue.

The contact owns a 2015 Ford Explorer. The contact stated that on several occasions, while starting the vehicle and while driving at an undisclosed speed, there was an abnormally loud sound coming from the engine compartment. There was no warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed that the long block assembly had failed, and that the engine needed to be replaced. The vehicle was not repaired. The dealer was contacted. The vehicle was not diagnosed or repaired by the dealer. The manufacturer was not made aware of the failure. The failure mileage was not available.

My Explorer was very slow/unable to accelerate onto the highway. The next time I started it there was rattling and lots of non engine noises, along with all kinds of warning lights. I took it to the dealership. In his words ‘the turbo grenaded itself into the engine. Quoted me 15k to fix/replace the engine, turbo and half shaft. I still owe 9k on it. Extended warranty that I purchased expired 4,000 miles ago. I have had multiple issues with this vehicle since I purchased it brand new in 2020. I am trading it in tomorrow??.

The contact owns a 2021 Ford Explorer. The contact stated that the VIN was included in NHTSA campaign number: 24v598000 (engine). The local dealer was contacted and declined to complete the recall repair. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The contact had not experienced a failure.

Blown engine due to ecoboost fuel issues. Vehicle quit and shut off on highway. Multiple issues with 2019 Ford Explorer that does not get resolved.

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There is an odor in the passenger cabin. Seems unsafe.

Police car started to run rough at low speed. Stalled in middle of road. Scanned codes and code for catalytic converter showed up along with misfires from numerous cylinders. Brought to dealer and was told needed plugs and a wire. Vehicle was returned and the same issue occurred. Fixed again. Picked up and once again the same issue started. Turned around and brought it back to dealer. The mechanic stated he never checked the catalytic converter as he was never told it had a code for the converter being bad. Two weeks later I am informed that cylinder 5 is bad. No compression. Two issues. Ford upped the warranty on the catalytic converters because of this common problem. The tech sheet shows that a bad cat will cause misfires, but never checked. Second issue is the recall 24s55 was for Fords with a 3. O liter engine, built in chicago, between the dates of 7/21 and 10/21. My vehicle was built in chicago on 9/21 and has a 3. 0 liter engine. I also received the post card regarding the recall and we had brought it t o the dealer. 24s55 states the valve could cause engine failure. Well now I have a bad engine. Ford says no recall even though prior chief brought to dealer after receiving postcard for recall.

The contact called on behalf of the owner of a 2019 Ford Explorer. The contact received notifications of NHTSA campaign numbers: 24v031000 (structure) and 26v101000 (suspension). The contact stated that after the vehicle was stopped at a traffic light, the vehicle stalled. The battery warning light was illuminated. The contact was able to restart the vehicle. The contact stated that the failure was occurring every other day. The vehicle was taken to an independent mechanic. The independent mechanic replaced the manifold absolute pressure (map) sensor and an unknown sensor; however, the failure persisted. The contact stated that on a separate occasion, while the vehicle was idling, the vehicle stalled. The vehicle was restarted. The contact stated that while the temperature gauge was midway, the vehicle stalled. The battery warning light was illuminated. The contact stated that whenever the temperature gauge was midway, the vehicle would stall. The vehicle was taken to another independent mechanic who replaced a fractured spark plug and the timing chain. The vehicle was repaired; however, two months after the last repair, the failure reoccurred. The manufacturer was not made aware of the failure. The failure mileage was approximately 130,000.

I was leaving the store pulled out on a main road in town about to head on the highway. My steering wheel locked and would hardly move with all my strength and the help of my significant other we pulled back into the store parking lot rarely missing hitting several vehicles in the process. I had my children with me at the time in this vehicle as well. The power steering assist fault message popped up. I had the vehicle towed to Ford groves and after a diagnostic test was ran I was told it was my steering gear and the entire steering column needed to be replaced. The second opinion I got said it was the rack and pinion needing to be replaced. After doing research I found other reports of other 2013 Ford Explorer owners having wrecks due to this some with the same edition as myself (limited). There are recalls for the steering on 2013 Ford Explorer but not the limited. I need my edition to be added because this is clearly happening here as well. This was very dangerous when I explained to the dealership about the recalls they told me this was not accurate and was the wrong information. This was random and happened out of no where my vehicle was fine prior to this. Yes the vehicle is available upon request for inspection.

My Explorer is only 4 years old and it suddenly suffered catastrophic engine failure due to low engine oil. The engine started knokcing and clattering before any warning lights came on the dash. This could also be due to premature bearing failure which is common in the 3. 0 ecboost engines.

Unknown.

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12 v battery continues to die and I've had the car less than a year. On [xxx] the battery was dead. Our neighbor put it on his supercharger. On [xxx] the 12v battery low light came on while I was driving 30 miles away. It went off the next day and reappeared on Thursday [xxx] disappeared on Friday and back on Saturday. I called the future Ford on Monday and technician [xxx] said it only showed 15% charge. I took it in to the dealership and it was kept over night and the next day he said it was charged to 90%. I was not happy with the "you can come and get it". I told him I'm a [xxx] and bought this car so I wouldn't breakdown and now I don't feel safe with it. He checked the charge again while we were on the phone and he said it dropped to 80%. He said thats not good it will probably need a new battery. That evening he text and said it is fully charged and I can come get it without a new battery. I was not happy as I've received no reason for why it was losing charge. So I did some research on my on and text him back that evening. I told him about my research and found this was an ongoing problem and that they need to find out what is causing the draining issue. I'm sure the dealership had to know as there was a recall for this issue. I suggested a parasitic test, or software glitch issues to check. He said they would run the parasitic test. . He said it would take several days. I checked back on 12/4/25 and he said no progress today. I told him I want a copy of all the test run. Wouldn't you know it he gets right back to me saying a handful of modules need updated software. That they will attend them this morning. I think they were trying to get out of the fix as my warranty runs out this month. Why are only certain vehicles being recalled (mine not one of them), when they all should be recalled. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Complete failure of the water pump at 58000 miles.

Engine over heat warning while driving and I checked there is a coolant leakage.

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.

Another timing chain failure on highway with engine stopping on road. This should be a recall!!!!! only 101,300 miles on engine. No warnings no check engine lights until after failure.

I was driving on a freeway when the engine stopped without warning. The timing chain apparently; slipped and the pistons collided with the alves leaving me stranded on the road. This si a dangerous situation that Ford knows of adn is ignoring. The car had 101000 miles on it. The car was serviced at 98500 miles by Ford but the timing issue was ignored by the mechanics becasue the computer produced no error codes. The obvious ticking of the engine was the only indication that there was a problem that the mechanics ignored. This is a know premature failure and danger to drivers and the engine should be recalled for repair at Ford's expense. Please issue a safety recall on this engine. ( 3. 5l v-shaped 3. 5l ti-vct) consumers are at risk for unexpected breakdowns without warning, at speed, in traffic. . .