2018 FORD MUSTANG Engine Problems

Random/multiple misfires and cyl 3 misfire (P0300 and P0303). Mechanic used a borescope and found coolant on the walls; visible coolant intrusion in cylinder 3. Coolant has gotten to low levels. Very rough cold start. Mechanic highly recommends to get the engine replaced.

My 2018 Ford Mustang EcoBoost experienced sudden engine failure at 70,915 miles. The dealership documented misfire codes P0300, P0301, and P0316, which match the known 2.3L EcoBoost coolant-intrusion defect. This defect causes loss of power, rough operation, misfires, and potential stalling, creating a safety risk during driving. Ford Customer Relationship Center instructed me that the dealership must escalate the defect to the Regional Field Service Engineer. However, the dealer refused to do so, leaving the failure unresolved. This appears to be part of a widespread safety-related defect involving 2.3L EcoBoost engines, with risk of sudden loss of power, stalling, and internal engine failure

There is a coolant intrusion on my vehicle, which resulted in either cracking the engine block or head gasket. In turn, this has caused a costly repair on a car with only 56,000 miles on it. Ford is aware of the issues with these engines and the seals on them. It’s a 2018 Ecoboost! It also happened to my mom’s Ecoboost around the same mileage. This isn’t normal and Ford is literally turning a blind eye to a very serious issue which results in total engine failure. On top of that the repair for this issue is costing $12,000 to repair at the dealership. This is absolutely absurd for a company as big as Ford, to build a faulty engine and then not offer any support/recalls to help all of those affected by it, including me.

My engine began experiencing misfires at around 40,000 miles. They were on and off. The check engine light would pop up and go away for around a month. Then the vehicle began having a rough start and check engine light would not go away. I sent the vehicle back to the dealer where they determined that my engine was having misfires due to a coolant leak into cylinder one, stemming from a poor engine design. The engine needed to be replaced. The repair was covered under my warranty.

For roughly 4mths beginning in April 2025, my 2018 Ford Mustang Ecoboost has been suffering from a sporadic misfire, with it the system reporting the misfire and the check engine light coming on, the Ford App identifying the misfire occurring. It was initially repaired with replacing all spark plugs, ignition leads. The sporadic misfire would continue to occur, Ford dealership kept the car for 2 days in late July, took everything apart said they were unable to replicate the misfire, cleared the codes (P0303 being the main one that appears consistently) and said to come back if it occurred again. Roughly 2 weeks later the issue occurred again, took the vehicle back to Ford where they kept the car for 2 days, went through the same process and could not replicate the issue. They dug deeper into the issue and found that the coolant would not hold pressure and with the use of a video scope found that the Intake Valve had fractured and was leaking coolant into the engine as well as distributing multiple shards and pieces of metal from the Valve Intake Fracture. Informed me that the only option was to replace with a new engine and turboboost. They reviewed and found that there were no recalls related to this issue for this vehicle. After undertaking my own research, I found this to be a known issue for Ford and that roughly 100k vehicles had been recalled starting with the 2020 vehicles for the same issue. The out of pocket expense is around 14k, and the vehicle is currently waiting on a replacement engine to arrive. Currently Ford are not offering any assistance in the cost of the replacement, been though they have been servicing the car since 2020 and it is regularly maintained per their guidelines of vehicle needs based on the mileage driven.

My car engine made a huge boom at only 40,000 miles while on the interstate and I lost all power and almost got ran over by other vehicle because of this. The engine had blown up under normal driving conditions

The contact owns a 2018 Ford Mustang. The contact stated while driving at an undisclosed speed, the engine seized. There was no warning light illuminated. The vehicle was pushed to a nearby independent mechanic however, the vehicle was not diagnosed. The vehicle was then towed to another independent mechanic where it was diagnosed with a ruptured cylinder #1, causing engine failure. The contact was informed that the engine needed to be repaired or replaced. The vehicle was repaired. The manufacturer was made aware of the failure but provided no assistance. The failure mileage was approximately 18,000.

Mileage: 18,000

I own a 2018 Ford Mustang EcoBoost with a Gasoline Direct Injection (GDI) engine. At around 100,000 miles, the engine developed severe carbon buildup, resulting in cylinder scoring and catastrophic engine failure. Despite following Ford’s recommended maintenance schedule (including a 100,000-mile GDI cleaning service performed by the dealership), my car now has one cylinder with only 70 psi compression (confirmed by borescope and mechanical test). Other cylinders measure 135–160 psi. I have learned Ford is aware of this issue and has made design changes in later models (adding extra fuel pumps/dual injection systems) to address it, but no recall or owner warning has been issued for earlier EcoBoost Mustangs. My research and discussions with BG Products and independent experts show this is a common flaw with GDI-only systems, and Ford has failed to inform owners or provide a lasting solution. The dealership and Ford have offered limited goodwill, but the engine is beyond repair and requires a full replacement. I believe Ford’s failure to warn owners about this well-known defect constitutes a safety and reliability risk. I am requesting NHTSA to investigate this widespread issue and require Ford to take responsibility for affected vehicles.

Check engine light came on. Took car to dealership where I learned that the car needs a new engine due to coolant leaking into the cylinders. I later learned this is a "known issue" with this engine, yet Ford has refused to fix or do a recall. The engine could fail or catch on fire if not replaced.

The contact owns a 2018 Ford Mustang. The contact stated that while starting the vehicle, there was a misfire coming from the engine. The contact stated that the vehicle was shaking abnormally, with the check engine warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the head gasket had failed, and the engine needed to be replaced. The vehicle was not repaired. The dealer was contacted. The vehicle was not diagnosed or repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 66,637.

Mileage: 66,637

Took Mustang Ecoboost to Ford dealership as result of steady check engine light. Prior to check engine light rough idle at start up that smooths out after 10 to 15 seconds. Dealer identified CYL 3 misfire as well as random misfires. They also observed carbon tracking on plugs. Dealer replaced plugs and performed GDI cleaning service. About three weeks following repair same conditions reappeared rough idle and check engine light. Upon dealer inspection and use of bore scope discovered coolant intrusion in cylinder and recommended long block engine replacement. The second dealer appointment was several days after my warranty expired and mileage was 30,106 miles. Although the dealership was very supportive and understanding Ford would not provide any assistance even after I also pursued relief directly. As a result the long block engine replacement cost is $8,200. After considerable research was able to identify that ecoboost 2.3 engines as well as other small ecoboost engines all had a block defect that has since been corrected. The defect tends to permit, over time, coolant to leak into cylinders. Although a new head gasket may correct the condition, Ford normally recommends long block engine replacement as a long term fix. This condition if not attended to or if coming on suddenly will cause total engine failure. And, as failure can only occur when operating an engine failure under any driving condition is fraught with danger. To my knowledge Ford has not taken any steps to address this issue with the 2.3 liter engine built prior to about February 2020. And, at that time made an engineering change to the engine block addressing the design defect. Additionally, Ford did provide relief to owners of other smaller ecoboost engines having a similar design defect. At the present time there are several class actions suits pending for this 2.3 coolant intrusion issue. One final point should an ecoboost experience CYL or random misfires ensure bore scope is employed.

The contact owns a 2018 Ford Mustang. The contact stated while the vehicle was stationary, the contact attempted to warm up the vehicle; however, when the contact returned to the vehicle, the vehicle was off. The contact attempted to restart the vehicle and the check engine warning light illuminated. The contact restarted the vehicle however, the engine sounded like it was losing power with an abnormal ticking sound coming from the engine. The message to “Shift to Park” was displayed; however, the gear shifter was already in park(P). The vehicle was towed to an independent mechanic, the vehicle was diagnosed with engine failure due to a lack of engine oil. The vehicle was not repaired. The dealer was not made aware of the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 129,000.

Mileage: 129,000

Head gasket failure from research online there seems to be a flaw in the engine block that leads to coolant leaking in between cylinder walls causing premature head gasket failure.

Ford selling vehicles with malfunctioning engines. This malfunction is allowing coolant to mix in with the oil causing misfires, which leads to the car consuming all of its coolant which can cause the engine to catch on fire. Ford has known about this issue for years and are not trying to put a recall on the engine. They’re making customers pay out of pocket to fix the engine. the dealer determined that the failure was a result of coolant intrusion into cylinder #2 #3. Due to the failure, the engine needed to be replaced. There’s been reports of the vehicle engine completely shutting down while people are driving on the roads. There’s been reporting of the car overheating and catching on fire. The vast majority of consumers who bought the 2.3 liter engines from years 2013-2019 are experiencing these problems. While driving on the highway, the vehicles engine misfired causing lost of power. Luckily I was able to move to the side.

Engine block failure at 47k miles. Car was driven at 1/4 throttle or less when detonation occurred creating a hole in the engine block. This is so prevalent that it is colloquially termed “ecoboom.” Cost of repair is nearly $9,500

For three years, this Mustang will lurch frequently after you shift into first or reverse from park. I had it looked at Paradise Ford 3 years ago and they REFUSED to look at transmission until the car had 125k miles on it. At that time, the car only had 98k miles on it. I tried to insist, but they refused. The service helper was named Mark, I believe. The other day I was driving on a 10mph park road .....more like coasting because it was a low speed limit. The car suddenly jerked forward. Today I took it into Gary Yeoman Ford in Palm Bay, FL for a transmission check. The service advisor was Jason. They said there was a cdf hub issue and stated I needed a new transmission for 6600.00. Of course I refused and came home to research their "diagnosis". I found an article about a,10R80 bushing that has caused the same exact problem is other Mustangs. I feel like they were giving me the run around. I don't want this to cause further problems. It should have been fixed at Paradise Ford. I have owned this car for 5.5 years. I'm quite familiar with how it runs. Please advise.

Due to a faulty design were antifreeze is allowed to get into the cylinders and mix with the oil, the engine malfunctioned while I was on a busy highway and I barely got off the road onto the shoulder. It was very dangerous. I thought it was an isolated incident but it happened again. Now they want to charge me $8,400 to replace a defective engine. I know some of Ford's similar engines are being recalled. Thank you

We purchased this vehicle for my daughter as a graduation present and while she was driving it the engine malfunctioned stranding her on a busy highway. We then found out it is the defective EcoBoost engine manufactured by Ford that was the cause of this incident. We have been trying to get it repaired but Ford will not cooperate even though they know this engine is a defective product. Could we please get some assistance with this as we just purchased this vehicle a year ago and we are now being asked to spend $8,000 to replace a defective engine. Thank you, [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Ford Incorporation is selling vehicles with malfunctioning engines. Ford cut in between each cylinder block to allow the coolant to cool the engine, however this design is extremely flawed, it causes the head gasket seal to break. This malfunction is allowing coolant to mix in with the oil causing misfires, which leads to the car consuming all of its coolant which can cause the engine to catch on fire. Ford has known about this issue for years and are not trying to put a recall on the engine. They’re making customers pay out of pocket to fix the engine. Replacing the head gasket isn’t an enough to fix the problem because the oil and coolant are mixing inside of the engine. There’s been reports of the vehicle engine completely shutting down while people are driving on the roads. There’s been reporting of the car overheating and catching on fire. The vast majority of consumers who bought the 2.3 liter engines from years 2013-2019 are experiencing these problems.

Just like the other Ford Ecoboost engines, mine is also leaking coolant into the engine, which is causing me to have to buy an entire new engine. The code is reading a misfire into the third cylinder initially which I “fixed” with a tuneup. Turns out, I’ll need an entire new engine.

The contact owns a 2018 Ford Mustang. The contact stated while driving at an undisclosed speed, the engine over heated. The engine overheated warning light was illuminated. Additionally, the engine was misfiring. The vehicle was towed to the residence. The vehicle was then towed to the dealer where it was diagnosed with a failed engine due to coolant leak into the engine. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 58,000.

Mileage: 58,000

Ecoboost Turbo engine has a known flaw - coolant channels were placed between cylinders that don't allow them to seal properly and this leaks coolant into the engine eventually causing engine failure. FORD corrected this defect in 2020 but did not correct previous customers. As a result I am now being referred by my local dealer to replace the whole engine. I have only had this vehicle for 4 years and have only used 45K miles in that time frame. I have lost power while driving WITH MY CHILDREN IN THE CAR. I've already spent thousands of dollars on repairs only to find out the issue was the engine and a KNOWN issue that Ford covered up. Ford needs to be held liable for this and they should be responsible for replacing my engine. And the time and money spent attempting to fix this issue.

The contact owns a 2018 Ford Mustang. The contact stated that the check engine warning light was illuminated. The contact used a code reader which indicated that a spark plug had caused an engine misfire. The vehicle was taken to a dealer where it was confirmed as a spark plug misfire; however, the dealer determined that the failure was a result of coolant intrusion into cylinder #3. Due to the failure, the contact was informed that the engine needed to be replaced. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline. The vehicle was not repaired. The failure mileage was 72,212.

Mileage: 72,212

Coolant leaking in 3rd cylinder causing engine misfires. The vehicle has less than 50K miles on it and shouldn't be having these issues. The shop quoted nearly $5,000 to fix. Many other mustang owners are having this same issue.

Ecoboost 4 Turbo engine has a known design flaw - coolant channels were placed between cylinders that don't allow them to seal properly and this leaks coolant into the engine eventually causing engine failure. FORD corrected this defect in 2020 but never let customers know. I now have a 5 year old car in immaculate condition that needs a new engine. It doesn't start reliably and I have lost power while driving a few times. I've already spent $1600 on repairs only to find out the issue was the engine and a KNOWN issue that Ford covered up. If I want to repair my car I am responsible for 5K in engine repair. Ford needs to be held liable for this and they should be responsible for replacing my engine.

The contact owns a 2018 Ford Mustang. The contact stated that the vehicle was shaking at start up. There was no warning light illuminated. The contact had taken the vehicle to an independent mechanic who informed him that coolant had leaked into cylinder #3, causing the engine to overheat and caused engine damage. The contact took the vehicle to a dealer who confirmed the failure and replaced cylinder heads on all four cylinders. The manufacturer was notified of the failure. The failure mileage was approximately 65,000.

Mileage: 65,000

The contact owns a 2018 Ford Mustang. The contact stated that while driving at an undisclosed speed, the engine overheated. The vehicle was taken to an independent mechanic, where the purge valve was replaced due to a cylinder #3 misfire; however, while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to a second independent mechanic, where the fuel pressure sensor was replaced. The mechanic informed the contact that the engine needed to be replaced. The engine was replaced; however, while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken back to the independent mechanic, who informed the contact that the fuel injector needed to be replaced due to a cylinder #2 misfire. The manufacturer was made aware of the failure. The failure mileage was approximately 88,000.

Mileage: 88,000

The contact owns a 2018 Ford Mustang. The contact stated that while driving at various speeds, the temperature gauge indicated that the vehicle was overheating. The contact then became aware that coolant was leaking out of the exhaust. The vehicle was taken to an independent mechanic who informed him that either the head gasket was blown or there was a hairline fracture in the engine block or the cylinder head. The contact then called the manufacturer and was informed that the vehicle was covered under warranty and referred him to the local dealer for assistance. The vehicle was towed to the dealer where he was then informed that the vehicle was not covered under warranty. The vehicle was not diagnosed or repaired. The failure mileage was approximately 53,000.

Mileage: 53,000

My engine started knocking/ticking at around 6,000 miles, shortly after my first oil change. I was aware of the knocking issies, thanks to numerous youtube videos, before i even recieved my special order mustang so i made sure to use the same oil and filter that originally came with my car. Now the car has 18,500 miles on it, the knocking/ticking is getting worse and worse every year and Ford is calling the problem "normal" and refuses to do any repairs. The car has now been unsuccessfully serviced 3 times and should now be placed under the lemon law.

SO AT COLD START WHEN DRIVING WITHING 1800-2600 I GET THIS RATTLE PISTON SLAP ON THE BOTTOM OF THE ENGINE. I CHECKED FLUIDS NOT LOW ON ENGINE OIL. ONCE ENGINE GETS HOT ITLL STOP. HOWEVER IT DOES INCREASE IF I ACCELERATE. IT'S BEEN HAPPENING NEXT DAY I GOT MY CAR I REALIZED IT.

Mileage: 5,000

I BOUGHT MY FORD MUSTANG ON JUNE 2018. WHEN THE MILES HIT 30,000, THE ENGINE SHAKES EVERY TIME MY VEHICLE STARTS, AND MY WHOLE CAR SHAKES NOTICEABLY WHEN IDLING. THE EXHAUST GAS FLOW FROM THE CAR HAS OBVIOUS INTERMITTENT, MEANWHILE, THE EXHAUST PIPE SHAKES A LOT, AND YOU CAN CLEARLY HEAR THE "BURST" SOUND OR THUMP. IN ADDITION, MY WHOLE CAR HAS OBVIOUS JITTERS AT LOW SPEEDS OF MORE THAN 2,000, AND THE ACCELERATION IS WEAK. WHEN THE SPEED IS HIGH YOU CAN FEEL A LITTLE LESS JITTERY. IT IS NOT JITTERY UNDER NORMAL OPERATING CONDITIONS OF THE ENGINE. WHEN MY AUTO IS ON D OR R, IT DOESN'T MOVE AFTER I RELEASE THE BRAKE. PLUS, THE VARIABLE BOX OCCASIONALLY MAKES A STRANGE NOISE AND VEHICLE COOLANT DOES NOT WORKING PROPERLY. WHAT SCARES ME THE MOST IS THAT ONE TIME I WAS DRIVING ON L-595 HIGH WAY, MY VEHICLE SHUT DOWN AUTOMATICALLY, I TRIED TO RESTART IT BUT FAILED, I WAS PANIC, I HAD TO WAIT FOR MORE THAN 10 MINUTES ON THE HIGH SPEED ROAD TO TRY TO RESTART THE CAR AGAIN. LUCKILY I PULLED MY CAR IN THE EMERGENCY LANE, I CAN'T IMAGE IF IT WASN'T. AFTER ALL THOSE, I WENT TO MY DEALER AT PLANTATION FL, THEY CAN FIX FOR ME SINCE MY CAR IS STILL UNDER COVERAGE BUT I DON'T WANT GET IT REPAIRED. I DEEPLY DOUBT WHETHER THE REPAIR WOULD COMPLETELY FIX THOSE ISSUES. PLEASE HELP AND ADVICE IF I CAN GET MY CAR RECALLED? I WAS LOOKING FOR A CAR THAT I ALWAYS WANTED BUT NOT HANGING BY A THREAD.

Mileage: 30,000

AT ACCELERATION THE CAR WON'T SHIFT WHEN NEEDED THEN IT'LL AUTOMATICALLY DOWN SHIFT AND STOP ACCELERATING. THE RPM GAGE NEEDLE BOUNCES UP & DOWN WITH & WITH ACCELERATION IMAGED SPEED STILL DECREASES THEN SOMETHING CATCHES AND IT'LL START ACCELERATING & RPM GOING TO HIGH THEN STARTS ALL OVER BEFORE FINALLY WORKING RIGHT.

Mileage: 27,000

TL* THE CONTACT OWNS A 2018 FORD MUSTANG. WHILE THE VEHICLE WAS COMING TO A STOP WITH THE BRAKE PEDAL DEPRESSED, THE VEHICLE SHOOK VIOLENTLY AND STALLED. THE CONTACT HAD TO SHIFT INTO PARK AND TURN OFF THE VEHICLE. WHEN THE VEHICLE WAS RESTARTED, IT RESUMED NORMAL OPERATION. THE CONTACT CALLED THREE DEALERS: LANDMARK FORD (LOCATED AT 12000 SW 66TH AVENUE, TIGARD, OR 97223, 503-639-1131), DICK'S MACKENZIE FORD (LOCATED AT 4151 SE TUALATIN VALLEY HWY, HILLSBORO, OR 97123, 844-424-8102), AND SKYLINE FORD (LOCATED AT 2510 COMMERCIAL ST SE, SALEM, OR 97302, 503-581-2411). NONE OF THE DEALERS COULD DIAGNOSE THE FAILURE. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS MADE AWARE OF THE FAILURE AND OPENED CASE NUMBER: CAS24128956. THE APPROXIMATE FAILURE MILEAGE WAS 11,000.

Mileage: 11,000

I HAVE THE EXACT PROBLEM AS NHTSA CASE NUMBER 11187080. I BOUGHT IT NEW. NOW HAS ABOUT 11000. HAVE TAKEN IT TO TWO DIFFERENT FORD DEALERS AND BOTH HAVE SAID THAT THEY CANNOT FIND ANYTHING WRONG AND IT OPERATES AS IT SHOULD. I PLAN TO TAKEN IT BACK IN AGAIN AND SHOW THEM THE OTHER NHTSA COMPLAINTS.

Mileage: 5,000

AT 60MPH ON THE FREEWAY, MY 2018 MUSTANG GT WITH 2,000 MILES ON IT BLEW THE ENGINE. MASSIVE AMOUNTS OF SMOKE WERE POURING OUT THE EXHAUST PIPES AND FROM UNDER THE HOOD AND THE VEHICLE WAS VIOLENTLY SHAKING AND SOUNDER LIKE A TIN CAN FULL OF NUTS AND BOLTS. GOT THE CAR TO THE SHOULDER BUT MY WIFE AND I WERE SCARED TO DEATH AS CARS WERE WHIZZING BY JUST INCHES AWAY. ACCORDING TO ONLINE CHAT ROOMS A NUMBER OF THESE ENGINES ARE EXPERIENCING SIMILAR FAILURES. A BAD BATCH WAS PRODUCED AND FORD SHOULD HAVE RECALLED THEM. I ASKED FORD TO REPLACE THE CAR WITH A FACTORY INTACT VEHICLE AND THEY DENIED THE REQUEST. THEY SAY ALL THAT IS REQUIRED OF THEM IS TO FIX THE ISSUE. I BOUGHT THE CAR AS A COLLECTORS ITEM AND THIS TAKES AWAY ALL VALUE AS A COLLECTORS CAR. I OFFERED TO SPLIT THE COST OF GETTING A NEW ONE AND THEY SAID NO. I HAVE SUFFERED MONETARY DAMAGE ON THE VALUE. IT'S A DANGEROUS SITUATION HAVING THESE ENGINES BLOW UP. I FEEL FORTUNATE TO HAVE MADE IT THROUGH THE ORDEAL ON THE FREEWAY AND ITS AFTERMATH. THE BACK WHEELS COULD EASILY HAVE LOCKED UP AND THAT WOULD HAVE BEEN CATASTROPHIC. *JS

Mileage: 2,000

I HAVE THE EXACT SAME PROBLEM AS NHTSA CASE NUMBER 11192330

Mileage: 2,500

WHEN THE ENGINE IS COLD AND WHEN WARM AND RUNNING UNDER 2000 RPM THE ENGINE MAKES A INCONSISTENT TICKING NOISE WHICH CAN BE HEARD WHILE DRIVING AND AT IDLE. THIS ONLY STARTED AFTER THE FIRST OIL CHANGE WHICH WAS PERFORMED WITH THE RECOMMENDED OIL.

Mileage: 4,000

PURCHASED A 2018 FORD MUSTANG SPORT EDITION AND TWICE NOW ONCE AT ABOUT 15,000 MILES AND AGAIN AT 20,000 MILES, I LOSE HALF MY POWER AND THE ORANGE WRENCH LIGHT COMES ON. FORD HAS HAD MY CAR FOR 4 DAYS AND DOES NOT KNOW THE CAUSE OF THE PROBLEM.

Mileage: 20,000

CAR HAS A LOUD TICKING SOUND ONCE WARMED UP AND AT IDLE. ALSO OCCURS WHEN RPMS ARE BETWEEN 1500-2000. DEALER TOLD ME IT'S THE NEW DIRECT FUEL INJECTION SYSTEM. RESEARCH ONLINE SHOWS MANY OTHER MUSTANG GT OWNERS HAVING THE SAME PROBLEMS AND FOUND EVIDENCE OF PISTON SLAP AND SCORING. DEALERSHIP WON'T TAKE INITIATIVE TO FIX OR DIAGNOSE THIS PROBLEM. PROBLEM ALSO SHOWING UP ON 2019 MODELS. FORD KEEPS DEFLECTING THEIR RESPONSIBILITY TO ADDRESS THIS ISSUE AND DEALERSHIPS WILL NOT STAND BEHIND THEIR CUSTOMERS AND HELP THEM. PLEASE HELP BRING FORD TO TAKE RESPONSIBILITY FOR THIS PROBLEM AND FIX THE ISSUE.

AT CERTAIN RPM RANGES THE PISTON CAN BE HEARD SLAPPING THE CYLINDER WALLS, CYLINDER WALL SCORING IS PRESENT AND MAY CAUSE PREMATURE FAILURE OF ENGINE. IT CAN BECOME WORSE DOWN THE ROAD AND CREATE MISFIRES, FROM NO COMPRESSION, ALSO CAN MAKE FOR A VERY LOUD ENGINE KNOCKING NOISE. I HAVE DRIVEN A FEW OF THEM AND THEY ALL HAVE THE SOUND. FORD BUILT THE ENGINES WITH TOO MUCH CLEARANCE BETWEEN PISTONS AND CYLINDER WALLS. ALSO THERE IS A TICKING NOISE AT IDLE THAT FORD CLAIMS IS NORMAL BUT PEOPLE ARE HAVING DAMAGES TO THERE VEHICLES FROM THIS. ATTACHED IS CYLINDER WALL SCORING PHOTOS

Mileage: 6,500

PISTON SLAP NOISE FROM ENGINE. TICKING AND THUDDING NOISE FROM IDLE TO 2500 RPMS. CAN HEAR DIESEL TYPE SOUND INSIDE THE CAR WHEN AT IDLE. CHECK ENGINE LIGHT WITH CODE P0300 FOR ENGINE MISFIRE. CAR IS 1 YEAR OLD AND HAS OIL CONSUMPTION ISSUES. DEALER IS OF NO HELP SAYING ALL THESE ARE NORMAL. MY CAR SHUT OFF WHILE CRUISING DOWN THE HIGHWAY AND I LOST CONTROL OF BRAKES AND STEERING AS THEY WERE EXTREMELY HARD TO MODULATE. FORD AND DEALER ARE OF NO HELP IN RESOLVING THESE ISSUES AND I WORRY FOR MY AND MY FAMILY'S SAFETY DRIVING THIS CAR.

Mileage: 19,500

MY CHECK ENGINE LIGHT CAME ON WHILE ON CRUISE CONTROL ON THE INTERSTATE GOING 80MPH ON A 75 AND A FEW SECONDS AFTER THE CHECK ENGINE LIGHT CAME ON , THE CAR SHUT OFF AND LOCKED UP AND CAUSED ME TO LOSE CONTROL. CAR WAS TAKEN TO A DEALERSHIP , AND THE ENTIRE BOTTOM END WAS TORN APART AND A FEW ENGINE COMPONENTS WERE REPLACED. AFTER RECEIVING THE VEHICLE BACK FROM THE DEALERSHIP THE VEHICLE CONTINUES TO HAVE ELECTRICAL AND ENGINE PROBLEMS. THE CAR WILL AT RANDOM TIMES SHUT OFF WHILE DRIVING , MAIN TIMES IS THE FREEWAY. SECOND ISSUE IS THE CAR HAS LOUD KNOCKING TO THE ENGINE , SOUNDS LIKE A LIFTED KNOCK , THE CAR WAS TAKEN TO A DEALERSHIP, AND MY CAR WAS NEXT TO A SAME YEAR MUSTANG TO COMPARE SOUND AND MINE WAS DEFINITELY KNOCKING COMPARED TO THE OTHER MUSTANG. THIRD ISSUE IS THERE IS A CONSTANT SQUEALING SOUND LIKE A LOSE BELT COMING FROM THE BACK SIDE OF THE ENGINE (THIS RECENTLY STARTED) AND THE FOURTH ISSUE IS WHEN I'M COMING DOWN TO A STOP OR SLOWING DOWN EVEN WITHOUT TOUCHING THE BREAKS THERE IS A METAL CLINGING SOUND THAT DOESN'T STOP UNTIL THE CAR COMES TO A COMPLETE STOP. THE CAR ONLY HAS 17K MILES AND IS NEVER ABUSED , AND HAS ALWAYS BEEN PROPERLY MAINTAINED.

Mileage: 3,000

ENGINE HAS A LOUD TICKING SOUND. SOUND LIKE A SLOW TYPEWRITER. I HAVE A A VIDEO WITH THE NOISE.

Mileage: 550

TL* THE CONTACT OWNS A 2018 FORD MUSTANG. WHILE DRIVING, THE VEHICLE MADE AN ABNORMAL CLICKING NOISE. THE DEALER (FIVE STAR FORD, 6618 NE LOOP 820, NORTH RICHLAND HILLS, TX 76180) AND THE MANUFACTURER WERE CONTACTED. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE FAILURE MILEAGE WAS 6,500.

Mileage: 6,500

I PURCHASED A NEW 2018 FORD MUSTANG 2 DR 4 CYL ECOBOOST ON JULY 9TH 2018. ON AUGUST 15, AFTER HAVING DINNER WITH PARENTS AT THE HOUSE, I WENT TO VISIT SOME FRIENDS IN DAVIE AND IT WAS APROX 7:45 PM WHILE DRIVING ON A 4 LANE ROAD DIVIDED BY A MEDIAN. ROAD HAS FREQUENT SPEEDBUMPS AND THE MEDIAN HAS MATURE TREES. WHILE TRAVELING ON THIS ROAD - I FELT NAUSEOUS AND PLACED BOTH HANDS ON THE STEERING WHEEL AND SUDDENLY THE ROAD BECAME BLURRY AND I LOST CONCIOUSNESS AND STRUCK A TREE IN THE MEDIAN. THE CAR CAUGHT ON FIRE AND ACCORDING TO A POLICE OFFICER, HE TRIED TO REVIVE ME AND TO HELP ME GET OUT, HOWEVER MY LEGS WERE BROKEN AND INJURED. MY RIGHT LEG WAS BROKEN AND MY LEFT LEG WAS BADLY INJURED. I WAS WEARING A HIGH BOOT ON THE LEFT FOOT AND NO BOOT ON THE RIGHT FOOT IN ORDER TO BE ABLE TO DRIVE COMFORTABLY. SECONDS AFTER THE POLICE OFFICER REMOVED ME FROM THE CAR, THE CAR EXPLODED. I BELIEVE THAT I WAS SOLD A DEFECTIVE CAR THAT LEAKED POISENOUS GASES WHICH CAUSED ME TO PASS OUT AND CRASH I TO A TREE. HAD IT NOT BEEN FOR THE POLICE OFFICER, I WOULD HAVE DIED TRAPPED IN THE BURNING CAR.

Mileage: 1,500

SIGNIFICANT ENGINE RATTLE BETWEEN 2000-2500 RPM UNDER LIGHT LOAD. RATTLE IS LOUDEST IN THIRD GEAR AT 2200 RPM. SERVICE TECHNICIAN DUPLICATED THE ENGINE RATTLE AND FOUND DAMAGE TO CYLINDERS 5-8 AND SUBMITTED HIS REPORT ALONG WITH PHOTOS TO FORD. THE TECHNICIAN RECOMMENDED FULL ENGINE REPLACEMENT. FORD ONLY APPROVED A NEW SHORT BLOCK.

Mileage: 700

2018 MUSTANG GT WITH MANUAL TRANSMISSION. ENGINE STALLS WHEN SHIFTING INTO NEUTRAL (MANUAL TRANS) AT HIGHER ENGINE SPEEDS. FOR EXAMPLE, COMING UP TO A RED LIGHT (WAS TRAVELING APPROX 50MPH) OR WHILE EXITING THE FREEWAY (WAS TRAVELING 65MPH AND THEN WAS TURNING AROUND AN OFF-RAMP). HAS OCCURED AT ANY DRIVING SPEED (IF REVVING ENGINE AT FULL STOP, OR WHILE TRAVELING). STALLING DOES NOT OCCUR IF THE TRANSMISSION REMAINS ENGAGED WHILE SLOWING DOWN. IF I SHIFT TO NEUTRAL WHEN THE ENGINE IS NEAR IT'S NORMAL IDLE SPEED (500 RPM AFTER WARM-UP), IT WILL NOT STALL. THE PROBLEM ONLY OCCURS WHEN SHIFTING TO NEUTRAL ABOVE ~2,000 RPM, AND ONLY AFTER THE ENGINE IS WARMED UP. THE PROBLEM WAS PRESENT FROM THE TIME THE VEHICLE WAS BRAND NEW. AT 1500 MILES I RETURNED TO THE DEALER AND WAS ABLE TO SUCCESSFULLY REPRODUCE THE ISSUE TOGETHER WITH THE SERVICE ADVISOR. IN SOME INSTANCES, THE ENGINE SPEED WILL DROP BELOW IDLE SPEED AND THEN WILL RECOVER AND NOT STALL. I MADE A RECORDING OF THE CAN BUS TO TRY TO DIAGNOSE THE ISSUE ON MY OWN, WHICH IS AVAILABLE UPON REQUEST. IT SEEMS THAT THE ENGINE CONTROLLER IS REQUESTING MORE TORQUE FROM THE ENGINE WHEN THE SPEED DROPS, BUT THE THROTTLE WILL NOT RESPOND TO THE REQUEST AND THE ENGINE WILL STALL. NO DTCS OR WARNING LIGHTS WERE GIVEN TO INDICATE THAT THERE WAS AN ISSUE. NO MODIFICATIONS WERE MADE TO THE CAR, AND IS IN COMPLETELY 'STOCK' CONDITION.

Mileage: 20