Problems · by component
2006 Ford Explorer engine problems
58 owner complaints to NHTSA about the 2006 Ford Explorer cite engine, 9% of all 635 complaints for this model year.
Complaints
58
9% of all complaints
Crashes
0
Reported by owners
Fires
1
Reported by owners
Injuries
0
Reported by owners
What owners say about the engine
Verbatim from NHTSA complaints, newest first
“The contact owns a 2006 Ford Explorer. The contact stated while driving at an undisclosed speed, the engine seized. The vehicle was driven to the shoulder of the road. The contact parked the vehicle and allowed the vehicle to set for a while. The vehicle was started. The contact stated that the vehicle was driven 100 yards before the failure reoccurred. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 150,000.”
“Complete failure of the powertrain electrical harness. Heat degradation to wire insulation has exposed all conductors. Several other owner operators have experienced the same issue wherein the Dealer has attempted repair of existing trouble codes, by replacing sensors, modules and components. Problems range from vehicle shut-off at speed, vehicle fires, no-start and failed PCM modules due to short to power or short to ground. Based on my findings, this specifically impacts vehicles ranging from 2006-2010, Ford Explorer or Mercury Mountaineer with the 4.0L SOHC engine.”
“DRIVING ON SPEED LIMIT I STOPPED AT A LIGHT, CAR ENGINE WENT DEAD. I TURNED KEY OFF AND WAITED A FEW MINUTES, TURNED KEY ON, CAR STARTED AS NOTHING WAS WRONG. IT HAS HAPPENED 3 TIMES IN THE PAST YEAR. BATTERY AND ALTERNATOR ARE PRETTY NEW. DECIDED TO TAKE TO AN AUTHORIZED MECHANIC DEALER, COULDN'T FIND ANYTHING WRONG WITH THE ENGINE. REALLY? WHAT IF I WAS DRIVING IN A HIGHWAY? CERTAINLY I WOULDN'T BE ALIVE TO REPORT IT!”
“RADIATOR FLUID EXPLODED ALL OVER ENGINE AND FLOOR MASSIVE LEAK . SEARCHED IT UP ON INTERNET AND SEEMS THIS IS A COMMON PROBLEM WITH THIS VEHICLE . I STARTED VEHICLE AND FLUID STARTED GOING EVERYWHERE .I DROVE MAYBE 10 FEET AND SHUT THE CAR OFF IMMEDIATELY . *TR”
“I HAVE NOW HAD 2 PROBLEMS WITH THIS DEALERSHIP, AND PERSONALLY I BELIEVE EVERYONE DESERVES SECOND CHANCES, THE FIRST VEHICLE THE SELLER SOLD ME HAD MAJOR ISSUES WITH GAS TANK HAD A HOLE IN IT AND EXPOSED WIRES RIGHT NEXT TO IT SO THAT TRUCK WAS A TICKING TIME BOMB, NOW I HAVE A 2006 FORD EXPLORER WITH MORE ISSUES BUT AGAIN THE SELLER MAKES ITS SEEM LIKE A PRETTY RELIABLE CAR AND LIES ABOUT THE ISSUES, COVERS UP THE STORIES AND THANK GOD MY BUDDY IS A MECHANIC AND I TAKE EVERYTHING I BUY TO HIM, WHEN I FIRST RECEIVED THE CAR, (AS MANY PEOPLE NOT MANY PEOPLE KNOW ANYTHING AS SOON AS THEY HEAR A WEIRD NOISE) I TOOK IT TO HIM AND HE RIDES WITH ME AND NOTICES SOME MAJOR ISSUES, I TOOK IT FOR A DRIVE AND THE BACK SUSPENSION WAS GOING OUT (GOT THAT REPLACED) THEN THE TRANSMISSION SLIPPING , LIKE NOT ONLY WAS LIED TO BUT NOW HAVING TO PAY 2000$ JUST TO KEEP THE CAR RUNNING, NOT SUITABLE FOR ME NOR ANYONE, I FEEL BAD FOR WHOEVER THIS SELLER ALSO LIES TO. AND I AM FULLY AWARE THAT SOMEONE COULD GET THEIR LICENSE REVOKED FOR STUFF LIKE THIS, IF ANYONE WITH CLEAR EYES CAN SEE THIS SELLER SCREWS PEOPLE OVER. I TEXTED THE GUY ABOUT RETURNING THE VEHICLE AND JUST TO GET MY…”
“TL* THE CONTACT OWNS A 2006 FORD EXPLORER. THE CONTACT STATED THAT VARIOUS WARNING INDICATORS FLASHED AND THE VEHICLE STALLED SEVERAL TIMES. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC WHERE THE FLY BY WIRE PEDAL AND THE THROTTLE BODY WERE REPLACED, BUT THE FAILURE CONTINUED. THE VEHICLE WAS NOT TAKEN TO A DEALER FOR DIAGNOSTIC TESTING. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND DID NOT ASSIST. THE APPROXIMATE FAILURE MILEAGE WAS 150,000.”
Showing 6 of 58 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 7, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.