Problems · by component
2005 Honda Pilot engine and engine cooling problems
43 owner complaints to NHTSA about the 2005 Honda Pilot cite engine and engine cooling, 6% of all 679 complaints for this model year.
Complaints
43
6% of all complaints
Crashes
0
Reported by owners
Fires
0
Reported by owners
Injuries
0
Reported by owners
What owners say about the engine and engine cooling
Verbatim from NHTSA complaints, newest first
“MY WIFE WAS DRIVING TO WORK WHEN SUDDENLY SHE HEARD LIKE A WHIRRING SOUND AND THE CAR JUST SUDDENLY SHUT DOWN. SHE PULLED ON THE SIDE AND NOTICED FLUID WAS LEAKING UNDERNEATH THE FRONT SIDE OF ENGINE. WE HAVE THE VEHICLE TOWED TO DEALERSHIP. TALKING TO THE AGENT, THEY TOLD US THAT TRANSMISSION FLUID LEAKED INTO RADIATOR AND RADIATOR COOLANT/TRANS FLUID LEAKED INTO TRANSMISSION. COST OF REPAIRS: $1130 TO FLUSH OUT THE FLUIDS AND 5000 TO FIX TRANSMISSION. MY PROBLEM IS THAT WE'RE UPTO DATE WITH THE SERVICE CHECK-UP AND UPSET THAT THIS WAS NOT PREVENTED FROM HAPPENING. *TR”
“TL* THE CONTACT OWNS A 2005 HONDA PILOT. THE CONTACT STATED WHILE DRIVING APPROXIMATELY 10 MPH, THE ACCELERATOR PEDAL WAS DEPRESSED AND FAILED TO RESPOND WITHOUT WARNING. THE VEHICLE WAS TOWED TO A MECHANIC WHERE IT WAS DIAGNOSED THAT THE RADIATOR AND THE TRANSMISSION NEEDED TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE ISSUE. THE FAILURE MILEAGE WAS 137000.”
“TRANSMISSION COOLER LINE INSIDE RADIATOR FAILED COMBINING FLUIDS AND CAUSING THE TRANSMISSION TO MALFUNCTION. LOSS OF ABILITY TO DRIVE/MOVE VEHICLE WITH FAMILY IN THE VEHICLE. THIS IS A COMMON FAILURE AND REQUIRES A NEW RADIATOR AND REPLACE / REBUILD THE TRANSMISSION. A RECOMMENDATION FROM HONDA TO REPLACE THE RADIATOR EVERY 100,000 MILES WOULD HAVE PREVENTED HAVING TO REPLACE / REBUILD THE TRANSMISSION. SUBSEQUENT TO REPAIR, OIL REMAINS IN THE COOLANT SYSTEM AND HAS CAUSED FAILURE OF A COOLANT LINE DUE TO OVER-PRESSURIZATION. THE VEHICLE, WITH MULTIPLE CHILDREN IN IT, HAS BEEN STRANDED TWO MORE TIMES DUE TO COOLANT SYSTEM FAILURE. *TR”
“RADIATOR FAILED CAUSING THE TRANSMISSION FLUID TO MIX WITH THE COOLANT. MY WIFE WAS STRANDED WITH MY FOUR CHILDREN. WE HAD THE RADIATOR CHANGED AND COOLANT AND TRANSMISSION FLUID FLUSHED. THE TRANSMISSION HAS NOT FUNCTIONED PROPERLY SINCE THE PROBLEM HAPPENED. *TR”
“TRANSMISSION COOLER LINE INSIDE RADIATOR FAILED COMBINING FLUIDS AND CAUSING THE TRANSMISSION TO MALFUNCTION. LOSS OF ABILITY TO DRIVE/MOVE VEHICLE WHILE ON A RURAL ROAD BETWEEN CITIES DURING A SNOWSTORM WITH MY FAMILY IN THE VEHICLE. THIS IS A COMMON FAILURE AND REQUIRES A NEW RADIATOR AND REPLACE / REBUILD THE TRANSMISSION. A RECOMMENDATION FROM HONDA TO REPLACE THE RADIATOR EVERY 100,000 MILES FOR A MARGINAL FEE(SIMILAR TO THE TIMING BELT) WOULD HAVE PREVENTED HAVING TO REPLACE / REBUILD THE TRANSMISSION. *TR”
“TRANSMISSION COOLER LINE INSIDE RADIATOR FAILED COMMINGLED FLUIDS AND CAUSING TRANSMISSION TO MALFUNCTION. LOSS OF ABILITY TO DRIVE/MOVE VEHICLE WHILE IN MIDDLE OF MULTI-LANE HIGHWAY. *TR”
Showing 6 of 43 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 9, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.