Diagsheet

2016 Ford Mustang · symptom sheet

Check engine light or misfire

  • 33owner reports
  • 78,000median miles
  • $8,000median quote
  • 1involved a crash

Newest report Sep 3, 2026 · checked Sep 9, 2026

161 of the 375 complaints on this car are about the engine. 33 of those describe misfire.

Tick what matches of 33 reports

9
2
1
6
10

What got replaced

Owners who name the part that was replaced mention the ignition coils (5 reports) and the spark plugs (5 reports).

Recalls and investigations

One recall on the engine covers the 2016 model year. A recall on the same system isn't always the same failure, so read the defect text.

16V-779Oct 26, 2016
Engine And Engine Cooling:Cooling System:Hoses/Lines/Piping/Fittings

Ford Motor Company (Ford) is recalling certain model year 2015-2017 Mustang vehicles manufactured February 24, 2015, to August 30, 2016. A hose may separate from the engine oil cooler tube assembly causing an oil leak.

Risk and remedy
Risk: A sudden loss of engine oil may cause engine failure, increasing the risk of a crash. Additionally, an oil leak, in the presence of an ignition source, increases the risk of a fire.
Remedy: Ford will notify owners, and dealers will replace the engine oil cooler tube assembly, free of charge. The recall began on March 23, 2017. Owners may contact Ford customer service at 1-866-436-7332. Ford's number for this recall is 16S40.

NHTSA investigations into the engine on the Mustang

DP05-005opened Sep 22, 2005
Engine And Engine Cooling · model years 1997 to 2004

Spark plug ejection from cylinder head. Closed jan 4, 2006.

NHTSA summary
ON SEPTEMBER 6, 2005, ODI RECEIVED A PETITION REQUESTING THAT THE AGENCY INVESTIGATE ALLEGATIONS OF ENGINE SPARK PLUG EJECTION IN CERTAIN MODEL YEAR 1997 THROUGH 2004 FORD VEHICLES WITH TRITON V-8 AND V-10 ENGINES.ODI RECEIVED A TOTAL OF 474 NON-DUPLICATIVE COMPLAINTS ON THE SUBJECT VEHICLES WHERE THE COMPLAINANT, OR THE DEALER REPAIRING THE VEHICLE, REPORTED THAT A SPARK PLUG DETACHED FROM THE CYLINDER AND/OR EJECTED FROM THE ENGINE.AS OF DECEMBER 8, 2005, ODI IS NOT AWARE OF ANY ALLEGATIONS WHERE THE ALLEGED DEFECT RESULTED IN A LOSS OF VEHICLE CONTROL, A CRASH, AN INJURY, OR A FATALITY IN ANY OF THE 10,319,810 SUBJECT VEHICLES.IN ADDITION, ODI IS AWARE OF ONLY TWO INCIDENTS WHERE THE VEHICLE STALLED WITHOUT RESTART.INFORMATION CONTAINED IN THE ODI CONSUMER COMPLAINTS AND OBTAINED FROM 72 TELEPHONE INTERVIEWS WITH COMPLAINANTS SHOWED THE FOLLOWING:(1) 99% OF THE COMPLAINTS WERE ON MY 1997 TO 2002 SUBJECT VEHICLES.(2) MOST THE COMPLAINANTS REPORTED HEARING A LOUD POP WHILE DRIVING OR UPON STARTING UP THE VEHICLE FOLLOWED BY A LOUD, REPETITIVE CLICKING OR POPPING SOUND.(3) MANY OF THE COMPLAINANTS REPORTED THAT THE POPPING SOUND WAS ACCOMPANIED BY SOME LOSS OF VEHICLE POWER; HOWEVER, IN 99% OF THE INCIDENTS REPORTED, THE VEHICLE DID NOT STALL.IN THE VERY FEW INCIDENTS WHERE THE VEHICLE DID STALL, MOST VEHICLES COULD BE RESTARTED.(4) ONLY A SMALL PERCENTAGE OF THE COMPLAINANTS CITED THAT THEY SMELLED GAS OR A SLIGHT BURNING SMELL WHEN THE INCIDENT OCCURRED.(5) IN ALL BUT A VER
PE99-029opened May 3, 1999
Electrical · model years 1998

Fires in the center console. Closed jul 27, 1999.

NHTSA summary
There is no summary currently available
PE87-028opened May 1, 1987
Electrical · model years 1984 to 1986

Stalling. Closed jan 21, 1988.

NHTSA summary
NO SAFETY DEFECT TREND HAS BEEN DETECTED.===

None of these investigations covers the 2016 model year.

What owners paid

5 of the 33 reports quote a price. Each dot is one quote. The middle half runs $700 to $10,000.

$700$8,000$10,000
$0k$2k$4k$6k$8k

When it happens

The middle half of failures fell between 35,000 and 103,000 miles, from the 23 reports that gave a mileage.

116
117
219
220
121
322
723
824
425
426

What owners wrote

“Brought the car in for service. The tech called me back and said the engine was blown. Condensation in cylinder 3. This was due to the cylinder walls being engineered to small. Which caused a leak in the coolant jacket. I paid out of pocket nearly $10,000 to have it replaced because the third party warranty that I had purchased declined my coverage to fix it because it’s a known issue by ford. Bc”

Filed Sep 3, 2026

“The head gasket in my 2016 mustang eco boost failed. I have 126k miles and coolant is leaking into cylinder 2. I’ve always taken care of the maintenance on a timely matter and no modifications have been done.”

Filed Jan 28, 2026 · 126,000 miles

“2016 Ford Mustang 2.3L Ecoboost Engine. Coolant intrusion into the cylinder. It's a known issue, an engine block design flaw. Ford was replacing the whole engine when those cars were under warranty. There is extensive content online about it and dozens of class actions.”

Filed Jan 8, 2026

“Coolant intrusion into the cylinder head. This caused a sudden halt of he vehicle which could have caused an accident and loss of life. The engine coolant overheating temperature warning light came on. Vehicle was inspected by ford dealership and found to have blown head gasket. The car is vat for inspection.”

Filed Aug 29, 2025

Should you keep driving it?

This page can't tell you that. 1 of 33 reports involved a crash and 3 people were hurt. Owners who file are the ones who had a bad experience, and nobody checks their reports. If the problem affects steering, braking, power or a fire risk, treat it as a safety fault and have it inspected before a long or high-speed drive.

File your own report with NHTSA. Complaint counts are how a problem gets an investigation.

Other problems on this car