2016 Ford Mustang · symptom sheet

Engine overheats or leaks coolant

29owner reports
79,089median miles
$8,000median quote
0involved a crash

Newest report Sep 3, 2026 · checked Sep 19, 2026

82 of the 375 complaints on this car are about the engine. 29 of those describe overheating.

Tick what matches of 29 reports

the temperature gauge climbed into the red

coolant is disappearing or on the ground

white smoke from the tailpipe

the heater stopped blowing hot

the dealer found a head gasket or cracked block

the engine was replaced afterward

What got replaced

Owners who name the part that was replaced mention the head gasket (8 reports), the water pump (3 reports) and the coolant hose or reservoir (3 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

None of these investigations covers the 2016 model year.

What owners paid

5 of the 29 reports quote a price. Each dot is one quote. The middle half runs $3,500 to $10,000.

$3,500$8,000$10,000

$0k$2k$4k$6k$8k

When it happens

The middle half of failures fell between 46,000 and 103,000 miles, from the 19 reports that gave a mileage.

116

220

222

523

824

525

626

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 itâs 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. Iâve 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

“My cars head gasket blew at only 45,000 miles. Replaced my a local well known mechanic for around $3500.00. Now my car at 96,000 miles has blown the head gasket again. I believe the car needs a whole new block. I have seen several lawsuits regarding this and just would love my car running again. This is NOT cheap to fix for me.”
Filed Jan 1, 2026 · 45,000 miles

Should you keep driving it?

This page can't tell you that. 0 of 29 reports involved a crash. 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.