Problems · by component
2004 Honda Accord engine and engine cooling problems
28 owner complaints to NHTSA about the 2004 Honda Accord cite engine and engine cooling, 3% of all 1,018 complaints for this model year.
Complaints
28
3% of all complaints
Crashes
1
Reported by owners
Fires
2
Reported by owners
Injuries
1
Reported by owners
What owners say about the engine and engine cooling
Verbatim from NHTSA complaints, newest first
“AS I AM DRIVING MY VEHICLE GETS STUCK AT 20 MPH AND THE RPMS GO HIGH (ABOVE 3,000-4,000). THEN THE RPMS EVENTUALLY GO BACK DOWN AND THE VEHICLE SPEEDS UP. I HAVE 2 BOYS, A 2 YEAR OLD AND A 5 YEAR OLD ALONG WITH MY WIFE. I AM FEARFUL FOR THEIR SAFETY. I RESEARCHED THAT THERE WAS A RECALL IN REGARDS TO THE TRANSMISSION OVER HEATING AT 2ND GEAR FROM LACK OF LUBRICATION BUT I NEVER RECEIVED A RECALL, OR AT LEAST MY DEALERSHIP DID NOT RECEIVE A RECALL NOTICE. I AM NOT IN THE BEST FINANCIAL SITUATION TO HAVE A TRANSMISSION SERVICED, BUT I HAVE KEPT UP WITH ALL OF THE VEHICLE MAINTENANCE INCLUDING THE TIMING BELT, WATER PUMP SEALS BELTS ETC WHICH WERE REPLACED NOT TOO LONG AGO. I WAS HOPING THAT THE NHTSA COULD ASSIST ME WITH THIS URGENT MATTER. *TR”
“I DID THE ROUTINE MAINTENANCE ON MY HONDA ACCORD. I HAVE FOLLOWED ALL OF THE SPECIFICATIONS REGARDING OIL CHANGES, MAINTENANCE ON THE TRANSMISSION, TIMING BELT REPLACEMENT, ETC. UNFORTUNATELY, EVEN WITH THE ROUTINE MAINTENANCE PERFORMED ON THIS CAR, MY TRANSMISSION FAILED ON A ROAD TRIP ON JULY 7, 2012. I WAS DRIVING ON THE INTERSTATE GOING 75 MILES PER HOUR WHEN MY HONDA ACCORD WOULD NOT ACCELERATE ANYMORE. THANKFULLY, I WAS ABLE TO SAFELY PULL ACROSS THREE LANES OF TRAFFIC IN ORDER TO GET TO THE SHOULDER. UNFORTUNATELY, THAT IS WHEN I DISCOVERED THAT MY TRANSMISSION FAILED AND I HAD TO TAKE IT TO THE NEAREST GARAGE. *TR”
“TL* THE CONTACT OWNS A 2004 HONDA ACCORD. WHILE STOPPED AT A STOP LIGHT, THE CONTACT DEPRESSED THE ACCELERATOR PEDAL AND NOTICED THAT THE VEHICLE WOULD NOT ACCELERATE. THE VEHICLE WAS TOWED TO THE AN INDEPENDENT MECHANIC FOR A DIAGNOSTIC TEST. THE MECHANIC STATED THAT THE TRANSMISSION WOULD HAVE TO BE OVERHAULED. AFTER THE REPAIR, THE CONTACT NOTICED A VIBRATION IN THE TRANSMISSION. THE VEHICLE WAS TAKEN BACK TO THE MECHANIC. THE MECHANIC INSTALLED A NEW CLUTCH. THE VEHICLE WAS REPAIRED. THE APPROXIMATE FAILURE MILEAGE WAS 94,100. THE CONSUMER ALSO STATED THE FRONT HYDRAULIC AND SIDE MOTOR MOUNT WAS REPLACED. TWO WEEKS LATER, THE CONSUMER WAS INFORMED THE MOTOR MOUNT WAS BROKEN. UPDATED 06/04/12”
“AUTOMATIC TRANSMISSION FAILED WHILE DRIVING. CAR WAS LURCHING AND JUMPING IN SPEED. ENGINE WAS RACING. ULTIMATELY, THE TRANSMISSION FAILED WHILE DRIVING. THE CAR WAS LEFT WITHOUT PROPULSION IN THE MIDDLE OF A BUSY HIGHWAY. THERE ARE 100+ SIMILAR COMPLAINTS ON CARCOMPLAINTS.COM AND THE #1 MOST REPORTED PROBLEM ON THE HONDA ACCORD IS THE TRANSMISSION. THE '03 ACCORD IS THE #2 WORST CAR LISTED ON THE SIDE WITH 747 COMPLAINTS (#1 PROBLEM) ON THE TRANSMISSION. THE '04 IS #12 ALSO WITH TRANSMISSION PROBLEMS BEING THE #1 COMPLAINT. PEOPLE DRIVING THE 2003 AND 2004 HONDA ACCORD HAVE A NASTY SURPRISE WAITING FOR THEM. *TR”
“I HAD A 2004 HONDA ACCORD WITH APPROX. 65,000 MILE ON THE CAR. ONE DAY WHILE DRIVING ON THE FREEWAY, ONE OF THE SPARK PLUG BLEW OUT OF THE CYLINDER HEAD AND CAUSED A ENGINE FAILURE AND VEHICLE TO STALL ON THE FREEWAY. THE HONDA OWNER MANUAL RECOMMENDED THE 1ST SPARK PLUG CHANGE AT 100,000 MILES. WHEN TOW THE CAR TO THE REPAIR SHOP, THE SHOP DISCOVER THAT THE ONE OF THE SPARK PLUG WAS NOT PROPERLY TORQUED AT THE FACTOR AND CAUSE THE SPARK PLUG THREAD IN FATIGUE AND BELOW THE PLUG OUT OF CYLINDER HEAD. THE THREAD WAS STRIP AND MADE DAMAGED TO THE ENGINE. TOTAL REPAIR $3000. I GOOGLE THE SUBJECT HONDA SPARK PLUG BLEW OUT AND FOUND A LOT OF PEOPLE WITH SIMILAR PROBLEM. MANY HONDA AND ACURA HONDA WITH ENGINE THAT MADE BETWEEN 2004 AND 2006 HAD SUFFER THE SAME PROBLEM. HERE ARE THE LIST OF THE LINK HTTP://WWW.ODYCLUB.COM/FORUMS/52-2005-2010-ODYSSEY/134863-SPARK-PLUG-EXPLODED.HTML HTTP://COMMUNITY.CARTALK.COM/DISCUSSION/2280195/2005-V6-HONDA-ACCORD-EXPLODED-SPARK-PLUG HTTP://WWW.PILOTEERS.ORG/FORUMS/14-PROBLEMS/27614-ANYONE-EVER-HEAR-SPARK-PLUGS-BACKING-OUT.HTML HTTP://WWW.ACURA-CL.COM/FORUMS/SHOWTHREAD.PHP?T=668825…”
“I HAVE A 2004 ACCORD EX-L V6. I BEGAN HEARING A STRANGE NOISE FROM THE TRANSMISSION WITH A LOSS OF MOTIVE POWER AT SPEEDS BETWEEN 25 TO 45 MPH.. MY HONDA DEALER SAID IT HAD AN INTERNAL FAULT AND WOULD REPLACE TRANSMISSION FOR $3800. I HAD A TRANSMISSION REPAIR SHOP REPAIR TRANSMISSION FOR $2900. THE TORQUE CONVERTER NEEDED REPLACING. CAR HAD 97K MILES. *TR”
Showing 6 of 28 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 3, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.