Engine And Engine Cooling Problems of Ford Mustang - part 2

The contact owns a 2018 Ford Mustang. The contact stated that the check engine warning light was illuminated. The vehicle was taken to a certified mechanic who diagnosed the vehicle with a misfire in cylinder #1, and coolant leaking into the engine. The mechanic referred the contact to the dealer. The vehicle was taken to the dealer who confirmed the diagnosis and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and opened a case. The manufacturer referred the contact to the NHTSA hotline to report the failure. The failure mileage was 49,000.

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While driving at highway speed it randomly shifts into first gear almost causing and accident/.

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Took car into dealership because it was running rough at start up and check engine light came on. They told us today that coolant leaked into cylinder requiring head gasket repair and pissible engine replacement. The car has less than 40,000 miles, has been gently driven, with full service records from the dealership and the extended warranty just ended in July 2024. Reading online forums, this is a very common issue due to design flaw of the Ford ecoboost engine. What recourse do we have?.

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The contact owns a 2016 Ford Mustang. The contact stated while at a stop sign, the vehicle lost automotive power. The check engine warning light illuminated. In addition, the contact stated that the vehicle had a rough start prior to the failure. The contact stated that the vehicle was pushed into a nearby local independent service center where it was diagnosed with coolant leak intrusion into the engine. The vehicle was towed to a local dealer where it was left for further investigation at the owner's expense. The vehicle was not repaired. Upon further investigation, the contact related the failure to NHTSA campaign number: 16v779000 (engine and engine cooling); however, the VIN was not included. The manufacturer was not made aware of the failure. The failure mileage was approximately 99,000. The VIN was not available.

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The contact owns a 2017 Ford Mustang. The contact stated while driving approximately 40 mph, the message "high temperature - pull over" was displayed on the instrument panel. The contact was consistently adding coolant to the coolant reservoir for the vehicle to return to normal operation. The failure had occurred on several occasions. The contact stated that there was no warning light illuminated. The vehicle was taken back to the residence. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline to report the failure. The failure mileage was approximately 80,000.

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The contact owns a 2017 Ford Mustang. The contact stated while driving at various speeds, there was white smoke coming from under the hood. No warning light was illuminated. Upon further investigation, the contact related the failure to TSB: 19-2260; however, the vehicle was not included. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 25,000.

The contact owns a 2016 Ford Mustang. The contact stated while stationary the vehicle's revolutions started to go up, and the vehicle kept accelerating without a reason or the accelerator being depressed. There were no warning lights illuminated. The contact then tried to look around to see if any mats or if anything else was making the vehicle accelerate on its own, but found nothing was making the vehicle accelerate. The vehicle was shut off and when the contact tried to start the vehicle, the vehicle kept accelerating on its own. The vehicle was taken to an independent mechanic where the mat air flow sensor was replaced. The vehicle was repaired but the failure persisted. The independent mechanic was not able to provide a diagnosis. The manufacturer was made aware of the failure. The dealer was not made aware of the failure. The failure mileage was approximately 50,682.

I have experienced two engine failures in my 2005 Ford Mustang due to timing chain issues, specifically the failure of the timing chain cassette, guides, and tensioners in the 4. 0l sohc v6 engine. The first failure happened suddenly with no warning, resulting in severe bottom-end damage, including rod knock. The timing chain cassette ends tend to snap off, sending debris through the engine and damaging lifters, camshafts, and other critical components. The second failure was preceded by an audible “death rattle,” a known symptom of timing chain guide and tensioner failure. Despite this, my vehicle never displayed a check engine light or oil pressure warning before either failure. Unlike later Mustangs with an oil pressure gauge, mine only has a warning light, which never activated. This issue poses a major safety risk, especially at highway speeds. My first engine failure occurred with no prior symptoms, which could have led to an accident had I been merging or overtaking. A failing timing chain can cause misfires, loss of power, or sudden engine shutdown, endangering the driver and others on the road. Independent mechanics have confirmed this issue, and Ford service centers recognize it as a common problem with the 4. 0l sohc v6 engine. Ford has quoted $3,000–$4,000 for timing chain service, making repairs nearly as expensive as engine replacement. These engines rely on multiple chains and hydraulic tensioners that wear out over time, causing slack in the timing chain, jumped timing, and catastrophic damage, typically after 100,000 miles. Despite this, there are no clear warning systems to alert drivers before failure occurs. While timing chains are considered serviceable components, the high failure rate of the timing chain guides and tensioners in these engines, combined with excessive repair costs, indicates a design flaw. I have spent around $4,500 addressing this issue, yet the risk of recurrence remains.

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Blown head gasket causing coolant to leak into the engine at 49,000 miles.

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.

Purge valve has gone out multiple times, replaced multiple times. Very bad randomly occurring idle.

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Vehicle engine is noisy with grinding sounds coming from lower side of engine, can be heard at idle speeds plus popping, ticking. Engine has no power, smells like raw fuel. Engine internal problems exist at 46,000 miles. Vehicle feels like will stall any minute. Ford engine v8 gt fastback, Ford Mustang. Engine internal parts grinding, popping and ticking sounds from engine while running. Under warranty but dealer is not honoring warranty. Nielsen Ford, morristown, NJ.

I was driving home from work at approximately 65mph when my transmission shifted and slammed back into gear. I stopped in a safe location, cut the car off and then back on, but the transmission is still slipping. The dealership was notified of powertrain, electrical, and oil consumption issues at three different service appointments, but the manufacturer has been no help at all. Had I not known what to do, this could have been a completely different scenario.

See all problems of the 2024 Ford Mustang 🔎.

The contact owns a 2021 Ford Mustang. The contact received notification of NHTSA campaign number:25v455000 (fuel system, gasoline); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The contact stated that after storing the vehicle in storage for the winter and connecting a battery retainer, the check engine warning light temporarily illuminated for one day. The dealer was contacted and was unsure when parts would be available. The contact called another dealer, evansville Ford (428 n union rd, evansville, WI 53536); who was unable to confirm when parts would be available. The manufacturer was not made aware of the failure. The failure mileage was approximately 21,000. VIN tool confirms parts not available.

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.

The contact owns a 2005 Ford Mustang. The contact stated that the check engine warning light was illuminated. While driving at approximately 25-35 mph for approximately two miles, the engine started overheating. The oil pan gasket was leaking. The contact stated that the failure was related to NHTSA campaign number: 16v779000 (engine and engine cooling). There were several hoses that were split. The vehicle was taken to an independent mechanic who determined that the radiator and engine were cracked, and the pistons were loose. There was air in the oil. The local dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not contacted. The failure mileage was approximately 123,000.

The contact owns a 2020 Ford Mustang. The contact stated while driving 55-60 mph, the check engine warning light illuminated. The vehicle was taken to autozone, where the contact was informed that there was no coolant in the vehicle. The contact added coolant to the vehicle; however, the failure persisted. The vehicle was taken to the dealer, where it was diagnosed that the head gasket had failed, causing coolant intrusion into the engine. The dealer determined that the entire long block and the head gasket needed to be replaced. Additionally, the dealer informed the contact that the long block and the head gasket needed to be aligned correctly. The vehicle was not repaired. The manufacturer was notified of the failure and offered to partially cover the cost of the repair. The failure mileage was approximately 53,500.

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• std cruise control failure. Yes, available for inspection, test drive and failure analysis. • upon turning cc (cruise control) on the green icon appears (should be ghost icon) and is set at the speed limit. If below the speed limit no speed up to "set" speed occurs. Instead if you speed up, manually, to "set" speed you can't go past the "set" speed. Pressing on the accelerator has a power loss and flat lining. Speed does not increase until you go to heavy open throttle then it "takes off". Impossible to drive in cruise control mode. • problem was presented to gaudin Ford dealership >>> twice. Once on December 17th, 2024 and again on March 4th, 2025 gaudio Ford states " npf - no problem found normal operation at this time". Also, "unable to duplicate concern no dtc were present no tabs or scams for this concern rise with shop foremen all systems are working with spec at this time". Back on Dec 17th, 2024 reported "checked oasis found ssm 53160. Per ssm they will be an update available at first quarter of 2025. Recommend returning when update is available ". • has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? no. • were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? no. Not aware of.

The contact owns a 2016 Ford Mustang. The contact stated that while attempting to start the vehicle, the vehicle failed start. No warning lights were illuminated. The vehicle was towed to a local dealer to be diagnosed. The contact was informed that the valve had fallen into the engine, and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 139,766.

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 2016 Ford Mustang. The contact stated that while driving at approximately 45 mph, the check engine warning light illuminated. The vehicle was taken to a dealer where it was diagnosed with a cylinder #3 misfire, and that the spark plugs, coil pack, vacuum sensor, and engine needed to be replaced. The vehicle was repaired, but the failure reoccurred two days later. The vehicle was taken back to the same dealer where it was diagnosed that the coolant level was low and there was coolant leaking into cylinder #3, and the engine needed to be replaced again. The manufacturer was notified of the failure. The failure mileage was 79,575.

The contact owns a 2016 Ford Mustang. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost all motive. The contact was unable to pull to the shoulder of the roadway and the vehicle failed to restart. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the engine block sidewall. The vehicle was not repaired. The contact also stated that the incident was the fourth time the failure. The manufacturer was notified of the failure and referred the contact to the NHTSA hotline for assistance. The failure mileage was 70,000.

The contact owns a 2017 Ford Mustang. The contact stated that while driving at 30 mph, the check engine light illuminated. The vehicle was taken to a dealer where it was diagnosed that coolant leaked into the engine and the head gasket needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 31,000.

My 2019 Ford Mustang shelby gt350 was driving fine until all of a sudden I got a check engine light on the dash. The vehicle was not as responsive as usual and was shaking a little bit at idle. I shut the car off and then had it towed to the Ford dealership for further analysis. After inspection at a dealership it was identified, that my engine had failed. Cylinder 8 would not hold compression and had cracked the engine block. This failure can cause complete engine failure and can be a risk to the driver, passengers and anyone else in traffic.

Engine failure. In the right situation, complete loss of power of vehicle could cause several safety problems including injury and/or death. The problem was determined by the dealer and extended warranty inspector. There were no warning lamps or any other indications of a complete engine failure. No smoke exiting the exhaust, no contaminated oil, plenty of coolant in radiator, and was not making any noise. Reason for taking the car in for service was, on oct 1, 2024 the gauge was acting erratic. The car never ran hot. The car was taken to the dealership on oct 2, 2024. 2 days after, received a call with results stating that I need a complete engine replacement due to overheating and coolant found in cylinder #3.

Began over last month with difficulty or rough engine start in mornings then engine overheated once and continues to lose coolant without visible sign of any leakage. Scan error codes p0300, p 0303, p 0304. Now with excessive steam/smoke out tail pipe when it’s started. Took to mechanic where they verified engine coolant is in atleast, cylinder #3. My safety and that of others is the engine can fail or completely break or explode while driving, causing failure to be able to control vehicle, possibly resulting in a crash or even death.

The contact owns a 2016 Ford Mustang. The contact stated that when purchasing the vehicle they noticed the instrument panel had failed to illuminate. Then while driving at approximately 20 mph the red wrench displayed on the instrument panel and there was a loud noise coming from the vehicle, and the vehicle began shaking and emitting a burning oil odor. The contact lost control of the vehicle before it stalled and a spark of fire came from underneath the hood of the vehicle. The contact was able to get out of the vehicle where they watched black smoke come from underneath the hood of the vehicle. The contact noticed that there was oil all over the road. The fire department was not called. A police report was not made. The contact had received a concussion from hitting their head on the steering wheel when losing control of the vehicle. Medical attention was needed. The vehicle was towed to the dealer where they diagnosed that the piston dropped through the turbo causing a hole in the engine. The engine needed to be replaced. The vehicle had not been repaired. The manufacturer was made aware of the failure where it was confirmed the VIN was not covered under a recall or warranty. The manufacturer referred the contact to the NHTSA hotline to file a safety complaint. The failure mileage was 52,109.

As I proceeded to get over on a highway with cars speeding, my car would not allow me to move over because it would not accerlate to be safe and my car slowed down as if there was no power as I had to get to the side of the highway to avoid getting hit as cars were traveling at a high rate of speed. My car then stopped and I was forced to move into the grass to avoid getting hit and causing a wreck. The speed limit was 80 mph and I was traveling at 72 mph. As I try to increase my speed but the car seemed it did not have enough power. The next day I called to report it and take it to the shop, I was informed to not drive the car for my safety. The diagnosis was that one of the fuel lines stopped working and the control module was a recall. My niece and myself was put in danger as well as the emotional fear to drive the car. This occured on June on June the 20th and the car was picked up on June the 24th. It was a recall issue. I was told by Ford corporation that because it was fixed and I was safe then the matter was closed. Next incident, I reported that my lights and radio keep going off and then dimmed. I was driving, and had no lights at certain times at night. As I passed a non-lited highway, I could not see the direction I was traveling. During a rain storm at night, I had it continued to dim then go dark then back on. This was also another recall. I was advise that it was fixed so I had recourse against the manfualted Ford corporation. At 16,000 miles, the tires had no tread because the same tires have been recalled. This stopped my ability to drively safe and advoid stopping when needed. There were other issues, the car was taken in. There is a current recall that the is no remedy, that I could lose sterring and the wheel will cause a crash. I am one of the 30,000 Mustang that are having safety problems and are in the risk of crashes. I am in fear of driving the car, was denied of a buy back insure that I am not in danger.

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The contact owns a 2020 Ford Mustang eco boost. The contact stated that while driving at 25 mph, the check engine warning light illuminated. The vehicle overheated while driving. The contact was able to pull over. The vehicle was towed to the local dealer, where it was diagnosed that there was coolant in the combustion chamber, engine block, cylinder head, and low-pressure fuel pump failure. The dealer recommended an engine replacement. The vehicle was not repaired. The vehicle was taken to an independent mechanic who replaced the head gasket, but the failure recurred. The manufacturer was contacted, who referred to the NHTSA hotline. The failure mileage was approximately 86,000.

While driving at approximately 40 mph, my vehicle briefly sputtered, and the check engine light was on. The vehicle seemed to return to normal functionality afterward, but upon inspection at a Ford dealership, I was informed that coolant intrusion had caused damage to the engine. As a result, I was advised that the engine needs to be replaced. There are many others that have complained about this problem and to solution. My car has 81. 5k miles on it.

Brake lights don’t function brake switch bumper broke off and lights stay on but not bright when brake is depressed. Loss of power random misfire cut from loss of power. Brake switch fault in computer.

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The contact owns a 2020 Ford Mustang. The contact stated that after adding oil to the engine, the contact became aware that a significant amount of the engine oil had leaked out onto the ground. The vehicle was not diagnosed or repaired by an independent mechanic or a dealer. The manufacturer was notified of the failure and informed the contact that they could not assist because the VIN was not under recall for the failure. The failure mileage was approximately 72,000.

Blown head gasket. 26k miles. Only 6 months outside of warranty. Car is lightly driven on local roads . Routine maintenance by dealer up until end of warranty.

The 2016 used car that I bought in 2017 with 20,711 miles has a defective ecoboost engine that leaks coolant on to the cylinder heads & causes engine failure. The vehicle has less than 100,000 miles & is currently in engine failure. Ford knew about this defective engine & never sent me a recall. There are class action lawsuits in CA & DE against Ford for the same ecoboost engine in my car. They want to charge me $12,000 for a new engine. I had a 5 year 100,000 mile warranty expire due to 5 yrs expiration & not the mileage, during covid while the car sat in front of the house & was barely driven. Once covid lifted restrictions I drove to florida & put some miles on it locally & the engine is failing. This is absolutely absurd & Ford should be held accountable & be investigated in the state of MD for consumer fraud. This defective ecoboost engine dates back to 2012. They never should have sold me a car with a defective engine.

The contact owns a 2019 Ford Mustang. The contact stated that there was a ticking sound coming from underneath the hood of the vehicle while driving at various speeds and while the vehicle was idling. The contact stated that the rpm dropped while idling and while decelerating. There were no warning lights illuminated. The vehicle was taken to the dealer where it was diagnosed with a failure in the lifters inside the cam phaser. The vehicle was not repaired. The vehicle was taken to another dealer, lithia springs Ford (870 thornton rd, lithia springs, GA 30122), where it was diagnosed with the same failure. The dealer informed the contact not to repair the vehicle due to the design of the engine being known to have the failure. The contact was informed that the failure was related to TSB: ssm52334, NHTSA id number: 10251951 (engine and engine cooling). The vehicle had not been repaired. The vehicle had been taken to a certified mechanic who confirmed the diagnosis. The vehicle had not been repaired. The manufacturer was made aware of the failure. The manufacturer referred the contact to the NHTSA hotline to file a safety complaint. The failure mileage was 94,000.