general problems of the 2018 Ford Explorer - part 1

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.

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.

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.

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. . .

The internal water pump system on the ecoboost engine in the 2018 Ford Explorer failed after 7 years and only 63,880 miles. The vehicle was taken into the shop multiple times when the check engine light came on and the defect was not located until the vehicle failed. Due to the design, it is not easily fixed and cost an outrageous amount of money to fix for a vehicle with less than 100,000 miles. This is a safety risk because if this is a common issue, which it is, and the engine fails while driving it, the driver is not able to get to a safe area to address damages and is left stranded. There are numerous complaints regarding the design flaw of having the water pump inside the engine. The manufacturer refuses to address the flaw. The check engine light came on and was taken in and wrongly diagnosed each time until the engine failed.

The contact owns a 2018 Ford Explorer. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. Prior to the failure, when the vehicle was started, there was an abnormal sound coming from the engine. After several minutes, the sound ceased. The vehicle was taken to an independent mechanic who diagnosed the vehicle with a misfire in cylinder #3. The contact was informed that the spark plug was stuck, and the independent mechanic was unable to remove the spark plug. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken back to the independent mechanic. The vehicle was diagnosed with a misfire in cylinder #3, and the spark plug and ignition coil were replaced. The contact was unsure if the stuck spark plug was removed the second time the vehicle was repaired. Most recently, the contact noticed that while the vehicle was in park(p) and left running, the vehicle was idling roughly. The message "engine coolant over temperature" was intermittently displayed. The contact pulled over to the side of the road, left the vehicle running, exited the vehicle, opened the hood, and there was no smoke or steam present. The contact returned to the vehicle and noticed that the temperature gauge was indicating that the engine was hot. The contact drove back to the residence. The vehicle was taken to the dealer, where it was diagnosed with coolant intrusion in cylinders #1, #2, and #4. The contact was informed that the coolant reservoir was empty, that the spark plug in cylinder #3 was stuck, and that the engine needed to be replaced. The vehicle was not repaired. The contact took the vehicle to an independent mechanic for a second opinion, who diagnosed coolant intrusion in cylinders #1, #2, and #4, and that the spark plug was stuck in cylinder #3. The vehicle was not repaired due to the cost. The dealer notified the manufacturer of the failure. The failure mileage was approximately 118,000.

On Thursday, June 14, 2025, the check engine light illuminated on my 2018 Ford Explorer, which has fewer than 75,000 miles. I promptly contacted my trusted local mechanic, bananno automotive, to schedule an oil change and requested that they also inspect and diagnose the cause of the warning light. During their inspection, they performed a diagnostic scan and identified stored engine code p0430 – catalyst system efficiency below threshold (bank 2), which corresponds to the catalytic converter on the left side of the radiator. Concerned that delaying the repair could lead to increased emissions and potential damage to the engine, I authorized the necessary repairs. All work was completed by June 23, 2025. It was only after the repairs were finalized that I reviewed the Ford warranty guide and discovered that this issue is, in fact, covered under warranty. Unfortunately, Ford has denied reimbursement solely because the repairs were not performed at a Ford dealership. This is deeply disappointing, especially considering the repair cost exceeded $1,800, and no alternative solution or support has been offered. My intention in sharing this is to ensure that other Ford owners are not similarly affected by this type of parts failure and warranty denial.

I am writing to formally report a significant mechanical issue involving the water pump in my 2018 Ford Explorer with the 3. 5l v6 engine. This vehicle recently experienced a sudden failure of the internal water pump, a problem I have since learned is common across this model and others using the same engine design. In my case, the water pump failure occurred just outside of the vehicle’s extended warranty coverage, leading to engine overheating and a substantial repair cost. What makes this issue particularly concerning is the design flaw in which the water pump is located internally, driven by the timing chain. When the pump fails, it can leak coolant internally, potentially leading to catastrophic engine failure without warning. This design not only makes the part extremely costly to repair (often $2,000–$4,000 or more), but it also introduces a serious safety risk—drivers may experience engine overheating or seizure while on the road, with minimal to no warning. This poses a clear hazard, especially at highway speeds or in high-traffic situations. I understand that many other Ford owners have reported similar failures, yet no recall or customer satisfaction program (csp) has been issued to address the problem. Given the frequency of these incidents and the potential danger involved, I respectfully request that NHTSA investigate whether this condition qualifies as a safety-related defect. I have included my vehicle details below for your reference: make/model/year: 2018 Ford Explorer engine: 3. 5l v6 (non-ecoboost) mileage at failure: 101345 failure description: internal water pump failure leading to coolant leak and overheating repair estimate: $4511. 19.

Engine light turning off and on. Engine overheating light on. Told by Ford dealership that I need engine replacement.

I believe I am getting the cam phaser rattle sound in my 2018 Ford Explorer platinum with the 3. 5l ecoboost engine. Through research I have seen that this is a common problem among other 3. 5l ecoboost engines like the f-150, expedition, and navigator. This happens at cold start ups I noticed. I have tried calling my dealership and Ford corporate about this issue and they say that they can't cover this at all. My vehicle is at 65k miles (just outside the warranty).

The water pump failed. It is internal in the engine. Not sure yet if coolant got into the motor. It is not safe to drive the vehicle and have to get it towed for this expensive repair. Water pumps should not fail at the rate they do on the Ford 3. 5 motors. They need to have a recall on them.

The contact owns a 2018 Ford Explorer. The contact stated while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to an independent mechanic who diagnosed the vehicle and retrieved dtc: p0303 (misfire in cylinder #3). The vehicle was not repaired. The contact took the vehicle to the dealer, who confirmed the failure. The dealer replaced the spark plugs and ignition coils. The contact stated that the failure persisted. The contact stated that on a separate occasion, after the contact had the tires serviced, and the engine overheated. The vehicle was taken back to the dealer and was diagnosed with coolant intrusion into the cylinders, causing engine failure. The contact was informed that the torque converter and engine needed to be replaced; however, the vehicle was not repaired for the most recent failure due to the cost. The contact stated that the failure persisted. The manufacturer was not made aware of the failure. The approximate failure mileage was 119,000.

The contact owns a 2018 Ford Explorer. The contact stated that while driving approximately 35 mph, the vehicle started vibrating excessively and the vehicle hesitated with several unknown warning lights illuminated. The contact stated that while driving uphill the message "hill start assist not available" was displayed. The contact was able to drive uphill; however, the failure recurred after driving a short distance. The transmission unexpectedly downshifted and the vehicle was not able to pull into the driveway. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to the local dealer, who diagnosed that there were metal shards found in the engine and that the transmission had failed. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 86,000.

The contact owns a 2018 Ford Explorer. The contact stated while driving at an undisclosed speed, the engine overheated, with the warning light illuminated. The contact parked the vehicle and refilled the coolant reservoir. In addition, the contact stated that the coolant reservoir was repeatedly refilled weekly. The vehicle was taken to an independent mechanic where it was diagnosed with a coolant pump failure and a slow coolant leak. The contact was informed that the coolant pump needed to be replaced. The vehicle was not repaired. The vehicle was then taken to the dealer where it was diagnosed with coolant pump failure. The contact was informed that the coolant pump needed to be replaced. The vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.

The contact owns a 2018 Ford Explorer. The contact stated that while driving at various speeds on several occasions, there was an abnormal odor outside of the vehicle. The vehicle was taken to an independent mechanic where it was diagnosed and determined that the water pump needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 131,504.

This will be another submission as I am getting frustrated. My Explorer has had constant issues like clock work every 6/7 months. I have gone through 6 batteries in a two year time span. I have had the battery control module replaced because I thought that would be the fix. However it is not. While operating my vehicle yesterday on [xxx] after barely even starting the battery died and my car said multiple systems were failing almost causing someone to rear ended me. This is a safety issue like no other. When will I receive feedback for these matters I keep submitting? information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My 2018 Ford Explorer rolled backwards down a hill while in park and engine off.

Failed water pump and coolant leak. Numerous vehicles are failed for the same reason at each local shop and Ford dealer we’ve contacted for a quote. Repair costs are expected between $5,000 and $6,000.

Took the vehicle to a Ford dealership to fix the roof railings (recalled). While doing their inspection they said the vehicle was out of coolant and that the water pump needed to be replaced and it would cost $4400. 82. There were no warning lights or anything indicating that anything was wrong with the vehicle. This is a safety issue because the vehicle could overheat and shut down in the middle of the interstate without any warnings. This is a problem with the Explorer and should be remedied. Ford said there is a possibility that the coolant leaked into the engine and if so, a new engine would be required.

Doesn’t want to run right.

We took the car in for the recall 24v031 which is not able to be fixed at this time due to lack of parts. The Ford dealership explained to us that there were 2 other recalls on this vehicle that had not been addressed. They asked us if we wanted them fixed. We agreed to have them fixed. One being the luggage rack clips the other being high speed fan motor relay switch. The luggage rack was completed. The dealership replaced the fan not the relay switch as the recall indicated. When we brought the vehile home, the fan was super loud and would come on when ever it wanted too, whether the vehicle was running or shut off. It would also runn continuously even though it was not hot out nor had the car been running. We took the car back to the dealership. They looked into it. Ordered apart that never came. They had our car for 3 weeks and finally after arguing amongst themselves determined the relay switch should be replaced. Once we brought the car home, again the fan is super loud and runs randomly. The dealership has washed their hands of this situation. Telling us we are welcome to take it to another dealership as they believe the fan is running properly. We never had any indication that the fan was running improperly to begin with. My car was quiet and ran wonderfully. Now it is loud and actually embarrassing. Our friend was walking by and heard a loud noise like an airplane. He turned the corner and said wow that's your fan in the Explorer, that isn't right. This sucks. I love my Explorer but because of this I really don't. I believe it is not fixed and maybe never needed to be fixed. We followed all of the channels thru Ford to have this remedied. Now I am putting it in your hands.

Driving home from work when all of a sudden my car started jerking, not shifting correctly and could hear a noticeable noise coming from the engine. Low oil pressure light came on and pulled over. Car would not restart. Had it towed to mechanic and was determined that the engine was hydrolocked due to coolant getting into the pistons and oil. New engine needed on a 6 year old car with 91,000 miles. Upon researching it seems this is a common problem with eco boost engines and I don’t believe I should be responsible for this apparent common issue.

Unknown multiple owners of 2018 Ford Explorers are reporting oil leaks from bad seals. The oil leaks can cause fires, so we are in the process of having our Ford repaired at a mechanic and will know more at a later date.

My car has 105k miles on it. And the check engine light came on. Code was 3rd cyl. Misfire. Changed spark plug and coil pack. Light cane back on the next day. Then the overheat warning comes on. Shut vehicle off to cool. The coolant is now completely empty. Vehicle will not start. Have towed and the dealership gets it yo start but smoking. Dealership basically doesn't even notice that the fluid is low after we had filled it again. They say there's nothing wrong even though it wouldn't start and then was smoking when it did. Take to another mechanic to discover coolant in the 3rd cylinder and need a whole new motor. This issue has been common in these ecoboosts! but Ford has still failed to recall or do anything about it. Can cause overheating and fire from what I've read. And also cracked head and or block! $8000 repair on a vehicle just out of the extended warranty for an issue they know they had!.

The contact owns a 2018 Ford Explorer. The contact stated that while driving at an undisclosed speed, the check engine and coolant warning lights illuminated. The vehicle was taken to a local independent mechanic where it was diagnosed that the water pump had leaked into the engine and advised the contact to maintain the anti-freeze level full. The vehicle was taken to another local independent mechanic for a second opinion where it was diagnosed with the same failures and advised the contact to reach out to their local dealer. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 160,000.

My check engine light came on took the SUV to Ford dealership for service. They informed me that my engine had coolant intrusion and that I would need a new engine. In reviewing this information online I noticed that there have been multiple recalls on the ecoboost engine with the same problem.

Check engine light showing. Diagnostic testing shows misfire in cylinder #3. Ford dealership ran diagnostic testing ($169. 95) and verified concern and found coolant intrusion cylinder #3. Advised, due to mileage (75,976 miles), replacement of long block. Replacement cost estimated at $11k. No repairs have been performed at this point due to excessive cost. Second diagnostic test ($89. 95) with independent mechanic - confirmed original verification and found evidence of wear on long block. Mechanic stated that he currently had a Ford edge in the shop with the same issues. There is currently a class action law suit against Ford for same the issue. .

The contact owns a 2018 Ford Explorer. The contact started while driving at approximately 20 mph, the check engine warning light and several unknown warning lights were illuminated. The electrical system shut down and the engine stalled. The instrument panel became inoperable. Additionally, the power steering became inoperable and the brake pedal was depressed, but failed to respond, causing the contact to lose control of the vehicle. The vehicle drove off the road and violently crashed into a ditch. The air bags failed to deploy. The contact sustained a significant whiplash and a stiff neck. The contact had not yet received medical assistance. The contact was able to exit the vehicle through the front driver's side door. The vehicle was towed to the contact's residence. There was no police report filed. The contact stated that the front passenger's side and the front undercarriage of the vehicle were significantly damaged. Additionally, the contact stated that while attempting to restart the vehicle, the vehicle emitted smoke. The contact immediately turned off the vehicle. The dealer was notified of the failure. The manufacturer was notified of the failure and advised the contact to take the vehicle to the dealer for diagnostic testing, and to call back to file a report once the VIN was available. The manufacturer also referred the contact to the NHTSA hotline for assistance. The failure mileage was unknown.

The contact owns a 2018 Ford Explorer. The contact's wife stated that while driving at an undisclosed speed, the vehicle stalled with the low oil warning light illuminated. The vehicle was towed to an independent mechanic where it was diagnosed that the engine failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure and referred the contact to the nhsta hotline for assistance. The approximate failure mileage was 125,787.

Ford ecoboost 2. 0 engine failure at 66,000 miles as coolant has leaked into the engine compartment and oil pan. Known issue by Ford as design defect on the ecoboost engines. Current class action lawsuit over this [xxx] et al. , v. Ford motor company, case no. [xxx], filed in the united states district court for the district of delaware. Plaintiffs have experienced the exact same failures on the ecoboost engines. Ford issued multiple technical service bulletins (tsbs) and other service messages for vehicles equipped with ecoboost engines. Luckily, the failure occurred at home and not while driving at highway speeds as there have been reports of fires occurring if vehicle is moving during failure. Vehicle began rough idling 7-10 days ago and check engine light showed a code for misfire of cylinder. Had plugs changed but check engine light returned and then as of today, after overheating light came on dash upon startup with clouds of white smoke coming from exhaust, checked coolant levels and it was empty and drained down into the oil pan showing milky colored oil. Again. . . Ford knows about this issue with ecoboost and has since 2017 and has failed to issue recall for customer safety due to cost factors and continues to address on case by case basis with most common offer to cover partial cost of engine replacement. Most consumers don't have the financial resources to sue Ford, so they continue to take advantage of their size and financial power to abuse customers. Please take action about this known issue and review the above class action case before Ford's negligence results in consumer death or serious injury. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Failed water pump/coolant leak. Vehicle will suddenly overheat and engine can seize. Vehicle will stop unexpectedly and endanger the lives of the driver, passenger and other motorists. Temperature warning and check engine light comes on only when vehicle is overheated at which point there is no coolant left. Issue has been confirmed by an independent service center. I was told that they would not touch this repair and to take it to a dealership due to the location of the water pump, it's relationship to the timing chains and the labor intensive job. The part is inexpensive. A simple google search indicates that this is a known design problem since approximately 2011 and affects many makes and models. There are several class action law suits and a recall was issued in canada for the same issue. Ford will acknowledge "off the books" that it is a problem but offer no financial assistance or support for their design flaw. It is an extremely costly repair for a very pricey vehicle.

My 2. 7l eco boost Ford Explorer had a crack in the intake manifold allowing water to leak into the piston heads. This resulted in engine misfire and ultimately led to a full engine replacement. The service technicians at the dealership noted that the 2. 7 l eco boost are notorious for cracked engine components due to a mismatch in metal alloy. In reference to NHTSA# ea23002.

I purchased this vehicle Nov. 2021 with 46,000 miles and still having warranty on it. After driving less than 3000 miles began to see large/heavy amounts of blue smoke coming from the exhaust when starting the vehicle along with random loud noise at certain times when starting. Checked the oil and it was almost 2 quarts low and oil life said only 33% left. Complained that I thought it was burning oil at the dealership and their fix was to give me a free oil change and a new air filter saying there was no problem. I continued to have these same issues over the next 2 years with no documentation by the dealership of my complaints and no solution to the continued problems. At 1 point it was over 3 qrt. Low on oil with none on the ground. Then on 3- 31-24 while headed for vacation and over 3 hrs from home driving 70+ mph lost all power to the vehicle and thankfully close to an exit on highway. Had expense of a rental to continue on vacation. Had to reach out to a friend to tow the vehicle back 3+ hrs to home. Had an independent mechanic diagnose the car finding out it was a catastrophic misfire and loss of compression in 2 cylinders. Complained to dealership who then did their own diagnostics getting same answer. The vehicle by this time out of warranty and dealership doesn't want to help with paying for a new motor. Made 2 complaints to Ford directly with zero help. All of this should've been documented at the time of complaints so when the misfire actually occurred I might've gotten some help. I can't afford a new motor so had to borrow a car from a neighbor while figuring out what to do. The dealership solution was to trade me out of it into a newer vehicle which I'm not fond of and have a significantly higher payment which I didn't want either do to having now negative equity in the trade. Now finding out there is a recall on the same issue but for different year. I would hope that they would recall all ecoboost and there would be some compensation.