2021 Ford Explorer: engine knocking or ticking

Filed May 7, 2026 · Engine · ID

I own a 2021 Ford Explorer ST (3.0L EcoBoost) with 47,680 miles. The vehicle is exhibiting a severe metallic knocking noise at idle, a flashing Check Engine Light, and a dangerous loss of motive power while driving. A certified Ford dealership technician (Kendall Ford) diagnosed the vehicle with catastrophic engine failure, requiring a full engine replacement estimated at $13,000.My vehicle is exhibiting the exact mechanical failure described in Recall 24S55 (the federal safety agency Campaign 24V635000) regarding brittle engine intake valves. Although my vehicle shares the same build year, engine type, and failure symptoms as the recalled units, Ford states my specific VIN is not currently included in the 'repair' population.The sudden loss of engine power while operating at highway speeds creates an immediate crash hazard. I request that the federal safety agency investigate whether the scope of Recall 24S55 should be expanded to include this production range.Furthermore, Ford offered a 'goodwill' assistance of approximately $3,762, which I believe is an admission of a known manufacturing defect. At the time of this failure, the vehicle was only 17 days past the 5-year warranty period and well under the 60,000-mile limit. Despite this premature failure and the safety risk, Ford refuses to cover the full replacement, leaving me with a $9,000+ bill for a defect already acknowledged in 90,000 other units.

Filed Sep 9, 2025 · Engine · 80,000 miles · IN

The contact owns a 2021 Ford Explorer. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as needed and then lost motive power. The engine made ticking sounds, and the vehicle was running rough. No warning light was illuminated. The contact coasted the vehicle into the driveway. The vehicle was towed to the dealer, who discovered that the timing chain, spark plugs, and intake valves were fractured. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 80,000.

Filed Mar 7, 2025 · Engine · IL

I had complete engine failure on my 2021 115,000 mi Ford Explorer ST. The truck was only 3 years old. I heard a knocking noise and pulled over. Throughout the summer smoke had been coming out of the exhaust pipe every time I turned on the car before work. There was a cloud of smoke. A week before the engine failure I had the vehicle in the ford shop. They said everything was fine. I towed the vehicle to Currie Ford in Frankfort and they stated that there was catastrophic engine failure. Nothing could be done but I needed to put a new $12,000 engine in a $63,000 car. They said the warranty did not cover nor do I have any recourse. The safety of my family was placed at risk., I was travelling with my family, my wife, son, daughter, nephew who is [XXX] old and niece who is [XXX] . It left us stranded. There were no warnings. The dealership inspected the car a week before and said it was good to go. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Oct 31, 2024 · Engine · 74,000 miles · PA

The contact owns a 2021 Ford Explorer. The contact stated while coming to a stop, the vehicle stalled with an engine misfire. The contact stated there was a knocking sound coming from the engine with the check engine warning light illuminated. The vehicle was restarted; however, the failure recurred. The vehicle was taken to the dealer where it was diagnosed that valve springs in the engine cylinder needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and confirmed that the VIN was not included in the federal safety agency Campaign Number: 24V635000 (Engine and Engine Cooling). The contact was referred to the NHSTA Hotline for assistance by the manufacturer. The approximate failure mileage was 74,000.

Filed Oct 25, 2024 · Engine · 31,000 miles · MI

The contact owns a 2021 Ford Explorer. The contact received notification of the federal safety agency Campaign Number: 24V635000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated prior to the failure, the oil was changed 2-months prior at approximately 27,000. The contact stated that while driving at an undisclosed speed, there was an abnormal knocking sound coming from under the hood. No warning light was illuminated. The vehicle was towed to a local dealer where it remained for further diagnostic tests. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 31,000. VIN tool confirms parts not available.

Filed May 22, 2024 · Engine · OR

I have a catastrophic engine failure. The dealership (Doherty Ford) in Forest Grove Or acknowledges it. They are working with me. However, Ford has not responded to the dealers request for warranty work. It will be two weeks since I took the car to the dealer with a loud ticking noise. Dealer found a BUNCH of metal in the oil. I'm waiting to hear how Ford will fix it. The car has 45k on it. They also gave me an extended warranty because of all the issues I had with the car when I first got it. The [XXX] steering coupler to the rack was loose and almost came off when I drove it home. I have had a number of other issues. All dealer repaired. The car has also been to Doherty Ford almost exclusively for all its oil changes. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)