2003 Toyota Highlander Engine

I HAVE A 2003 TOYOTA HIGHLANDER WITH ONLY 97,000 MILES THAT KEEPS "OVER HEATING". I HAVE REPLACED EVERYTHING UNDER THE HOOD EXCEPT THE ENGINE. THIS PROBLEM STARTED AROUND NOV. 2009. I HAVE READ OTHER BLOGS THAT HAVE THE SAME COMPLAINT AND IT APPEARS TO BE THE "BOLTS ON THE ENGINE ARE STRIPPED/DEFECTED" AND ALLOWS THE COOLANT TO LEAK OUT CAUSING OVERHEATING. ONE BLOG I READ STATED HE HAD THE "BLOTS" REPLACED AND THE NEW BOLTS ARE EXPANDING AND DOING THE SAME THING (OVER HEATING) AGAIN! I HAVE CALLED SEVERAL DEALERS AND SO FAR NO RECALL FROM TOYOTA TO FIX THIS PROBLEM, ALTHOUGH ONE DEALER SAID THERE IS A MEMO FROM TOYOTA REGARDING THIS PROBLEM, BUT NO RECALL! PLEASE HELP, I AM A SENIOR ON A FIX INCOME AND CAN NOT AFFORD THE COST OF A NEW ENGINE. I HOPE YOU CAN HELP ALL OF US WITH THIS PROBLEM.....THANK YOU. *TR

2003 TOYOTA HIGHLANDER 2.4L 4-CYLINDER ENGINE, 108,000 MILES, DEVELOPED COOLANT LEAK ON THE BACK SIDE OF THE TOP OF THE ENGINE, ADJACENT TO AN INSULATOR PAD AT THE BACK OF THE ENGINE BLOCK. THE BACK 3 HEAD BOLTS WERE STRIPPED, ALLOWING COOLANT TO ALSO LEAK INTO THE ENGINE. THE TOYOTA DEALER SAYS THAT THE SHORT BLOCK OR ENTIRE ENGINE MUST BE REPLACED, WITH NO OTHER OPTION. THE HEAD HAD NEVER BEEN OFF SINCE ORIGINAL FACTORY MANUFACTURE/ASSEMBLY. BASED ON THE FREQUENCY OF IDENTICAL ENGINE FAILURES, FAULTY ASSEMBLY AND/OR DESIGN ASSURES EVENTUAL FAILURE OF THE ENGINE. *TR

TOYOTA HIGHLANDER 2003 2.4 LITER, BLOWN HEAD GASKET DUE TO STRIPPED THREADS ON THE SHORT BLOCK ENGINE. *TR

TL*THE CONTACT OWNS A 2003 TOYOTA HIGHLANDER. WHILE DRIVING APPROXIMATELY 65 MPH WITH THE AIR CONDITIONER ON SHE NOTICED HOT AIR BEGAN TO FLOW FROM THE VENTS. SHE ALSO NOTICED THAT THE TEMPERATURE GAUGE MALFUNCTIONED. THE VEHICLE WAS DRIVEN ONTO THE EMERGENCY LANE AND SHUT OFF WHILE SHE ADDED COOLANT TO THE ENGINE. THE VEHICLE WAS THEN TAKEN TO AN AUTHORIZED DEALER WHERE SHE WAS INFORMED THAT THERE WAS AN ENGINE LEAK AND SOME OF THE BOLTS WERE LOOSE. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE WAS 109,171. THE CURRENT MILEAGE WAS 110,000.

2003 TOYOTA HIGHLANDER WITH 110,000 MILES STARTED TO OVERHEAT AND LOSE COOLANT. TOOK IT TO DEALERSHIP AND LEARNED THAT THE CYLINDER HEAD BOLTS HAD COME LOOSE DUE TO THE HOLES IN THE BLOCK BEING STRIPPED. TOYOTA ESTIMATED $3000 TO TAKE THE BLOCK OUT TO A MACHINIST TO BORE NEW HOLES, BUT IF THAT DIDN'T WORK IT WOULD COST $6000 TO REPLACE THE BLOCK. I THEN TOOK THE CAR TO A PRIVATE MECHANIC WHO SAID IT WOULD COST $9600 TO TAKE OUT THE BLOCK AND SEND TO MACHINIST OR BUY A RE-MANUFACTURED ENGINE FOR $8200. THE PRIVATE MECHANIC STATED THIS PROBLEM IS DUE TO FAULTY MANUFACTURING OF THE ENGINE AND ALSO STATED THAT HE SEES THIS PROBLEM ALL THE TIME IN THESE TYPES OF VEHICLES. ON THE INTERNET I HAVE FOUND CONSUMERS SHARING THE SAME STORIES ABOUT SIMILAR VEHICLES BY TOYOTA WITH SIMILAR ENGINES THAT HAVE THE SAME PROBLEM; SOME ONLY LASTING 70,000 MILES. I PUT IN A CALL WITH TOYOTA HEADQUARTERS AND THEY GAVE ME A REFERENCE NUMBER IN CASE ANY RECALLS SHOULD ARISE. TOYOTA SAID THAT THERE WAS NOTHING THEY COULD DO OUT OF "GOOD FAITH" SINCE IT IS PASSED THE WARRANTY MILEAGE AND SINCE I DID NOT DO ALL MY SERVICING AT TOYOTA. I CHANGED THE OIL EVERY 3,000 MILES AND TOOK VERY GOOD CARE OF THIS VEHICLE AS IT WAS MY FIRST PURCHASE OF A NEW VEHICLE AND I THOUGHT IT WOULD LAST ME A LONG TIME. *TR

VEHICLE SUDDENLY LEAKS ENGINE COOLANT TO THE OUTSIDE OF VEHICLE WITHOUT ANY WARNING OF OVERHEATING. LEAK IS COMING FROM A DEFECTIVE HEAD BOLT AND CANNOT BE FIXED. ENTIRE ENGINE BLOCK NEEDS REPLACEMENT. A VERY COMMON ISSUE AMONG 4 CYLINDER 2001-2006 TOYOTA ENGINES IN THE CAMRY,HIGHLANDER AND RAV 4 LEAKING HARMFUL COOLANT TO THE OUTSIDE OF VEHICLES THAT IS DEADLY TO HUMANS AND ANIMALS IF CONSUMED. NOT TO MENTION OVERHEATING OF ENGINE THAT CAN RESULT IN LOSS OF ENGINE POWER AND VACUUM THAT SUPPLIES POWER TO STEERING AND BRAKES. *TR

TL*THE CONTACT OWNS A 2003 TOYOTA HIGHLANDER. THE CONTACT STATED THAT THE VEHICLE WAS PARKED IN HIS GARAGE WHEN HE NOTICED COOLANT LEAKING FROM THE ENGINE. THE VEHICLE WAS TAKEN TO AN AUTHORIZED DEALER AND THE TECHNICIAN STATED THAT THE FAILURE WAS CONTRIBUTED TO A DEFECTIVE ENGINE BLOCK. THE CONTACT NOTIFIED THE MANUFACTURER WHO CONFIRMED THAT THE WARRANTY HAD EXPIRED. THE MANUFACTURER WAS UNABLE TO PROVIDE ASSISTANCE AND INFORMED THE CONTACT THAT THERE WERE NO RELATED COMPLAINTS PERTAINING TO THE VEHICLE. THE VEHICLE HAD NOT BEEN REPAIRED WHEN THE COMPLAINT WAS FILED. THE FAILURE MILEAGE WAS 118,000. UPDATED 01/24/11 *CN UPDATED 04/18/11

1. ENGINE OVERTEMP 2. ENGINE CONTINUALLY RUNS HOT. CANNOT USE VEHICLE 3. REPLACED HEAD GASKET, RADIATOR, THERMOSTAT. *TR

TL*THE CONTACT OWNS A 2003 TOYOTA HIGHLANDER. THE VEHICLE HAD A HEAD GASKET WATER LEAK. THE VEHICLE WAS TAKEN TO THE DEALER WHO STATED THAT THE HEAD GASKET WAS BLOWN AND IT WOULD COST $2500 TO BE REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED. THE VEHICLE WAS NOT REPAIRED. THE FAILURE MILEAGE 126,000.

MY WIFE'S TRUCK BEGAN LEAKING COOLANT. I WAS TOLD THE HEAD GASKET WAS BLOWN. I PAID NEARLY $1600 FOR THE REPAIRS. A YEAR LATER, THE COOLANT IS LEAKING. WHEN THE HEAD WAS PULLED, THE THREAD STRIPPED OUT ON 3 BOLTS. I FOUND THE SAME COMPLAINT NUMEROUS TIMES ON THIS WEBSITE AND ON OTHERS. AT THIS POINT, THE OPTIONS ARE THREAD INSERTS THAT MAY WORK OR A NEW ENGINE! AT THIS POINT, I HAVE BEEN ATTEMPTING TO GET HELP FROM TOYOTA. THERE HAS BEEN NOTHING TO DATE. *TR

MY 2003 HIGHLANDER HEAT GAGE INDICATED THE ENGINE WAS STARTING TO GET HOT. I PULL INTO SERVICE STATION TO CHECK COOLANT LEVEL AND NOTICED COOLANT LEAKING ON THE GROUND. I WAITED FOR ABOUT 15 MINUTES TO ASSURE MYSELF IT WAS SAFE TO TAKE OFF THE RADIATOR CAP. I COULD NOT SEE ANY COOLANT SO, I PURCHASED A GALLON OF PRE-MIXED COOLANT AND POURED IN ABOUT 1/2 TO 3/4 GALLON TO BRING IT UP TO FULL. I MADE THE TRIP HOME WITHOUT THE CAR GETTING HOT, BUT NOTICED THE LEAK WAS STILL THERE. I HAD THE VEHICLE LOOKED AT BY A LOCAL TOYOTA DEALER AND WAS TOLD THE CAR NEEDED MAJOR REPAIRS. THERE IS A TECHNICAL SUPPORT BULLITIN ON THE ENGINE IN QUESTION. A 2.4 LITRE (4 CYLINDER) ENGINE COMMON ON CAMARYS AND HIGHLANDERS. I FEEL TOYOTA SHOULD HAVE TO REPAIR THIS VEHICLE IN LIGHT OF THE FACT TOYOTA HAS KNOWN OF THE DESIGN DEFECT ON OTHER MODELS (CAMARY AND HIGHLANDERS). WHEN I TOOK THE CAR IN FOR REPAIRS THE SERVICE SCHEDULER KNEW EXACTLY WHAT PROBLEM I WAS DESCRIBING TO HIM ABOUT MY CAR. THIS INDICATED TO ME, TOYOTA HAS INFORMED THEIR DEALERS OF THE PROBLEM OR, THEY WOULDN'T HAVE SENT A SERVICE BULLITIN ON THE VERY FIX TO MY CARS PROBLEM. THE SERVICE BULLITIN DESCRIBED (3) HEAD BOLTS AROUND THE INTAKE MANIFOLD WOULD STRETCH AND FAIL TO SEAL THE HEAD THUS, LEAK COOLANT. THE BULLITIN EVEN DESCRIBES INSTALLING HELI-COILS IN THE (3) AFFECTED BOLTS TO SOLVE THE PROBLEM. THIS APPEARS TO BE ANOTHER FAILURE OF TOYOTA TAKING RESPONSIBILITY FOR KNOWN DEFECTS IN THEIR AUTOMOBILES. I BOUGHT AND PAID FOR THIS VEHICLE IN GOOD FAITH ON THE RELIABILITY RECORD OF THE TOYOTA COMPANY'S PAST RECORD. I NOW FEEL I HAVE BEEN TREATED UNFAIRLY BY THIS COMPANY. I WOULD UNDERSTAND IF THIS WAS AN ISOLATED OCCURANCE, BUT IT IS NOT AND TOYOTA KNOWS THIS FULL WELL. SERVICE BULLITINS DON'T GET SENT TO ALL DEALERS FOR A SINGLE OCCURANCE. PLEASE HELP !

TL* THE CONTACT OWNS A 2003 TOYOTA HIGHLANDER. WHILE DRIVING APPROXIMATELY 25 MPH, THE ENGINE BEGAN TO OVERHEAT. HE PULLED TO THE SIDE OF THE ROAD, AND THE VEHICLE WAS RESTARTED TO RESUME OPERATION. THE VEHICLE WAS TAKEN TO AN INDEPENDENT MECHANIC FOR INSPECTION. THE REAR HEAD BOLTS AND A BLOWN HEAD GASKET WERE STRIPPED. ALSO THE CYLINDER HEAD GASKET WAS REPLACED. THE TOTAL COST OF THE SERVICE REPAIR WAS $1,972. THE FAILURE MILEAGE WAS 120,047. THE VIN WAS UNAVAILABLE. UPDATED 05/06/10. *LJ

ENGINE OVERHEATED. SERVICE DEPT DIAGNOSED BAD HEAD GASKET. DISCOVERED STRIPPED THREADS IN THE BLOCK FOR TWO REAR HEAD BOLTS. SERVICE DEPT ATTEMPTED REPAIR WITH RETHREADED HELICOIL BUT WOULD NOT HOLD. ENGINE REPLACEMENT IS REQUIRED. *TR

THIS PERTAINS TO MY WIFE'S 2003 TOYOTA HIGHLANDER SUV, 4 CYLINDER ENGINE. ON FRIDAY, AUGUST 28, 2009, WHILE DRIVING SHE NOTICED THE TEMPERATURE GAGE ON THE DASHBOARD WAS HIGH. SHE DROVE THE CAR HOME AND CHECKED THE COOLANT LEVEL. IT WAS EXTREMELY LOW. SHE REFILLED THE COOLANT AND DIDN'T DRIVE THE SUV UNTIL SHE WENT TO HER APPOINTMENT ON WEDNESDAY, SEPTEMBER 9, 2009 WITH THE HAWAII TOYOTA DEALER SERVCO'S MOTOR IMPORTS SERVICE & PARTS CENTER AT 609 SOUTH STREET, HONOLULU, HAWAII 96813. THEY TOLD HER THE ENGINE HAD A BLOWN HEAD GASKET. WE UNDERSTAND THIS IS BECAUSE THE CYLINDER HEAD BOLTS ARE STRIPPED ON THE BACK SIDE OF THE ENGINE. THIS IS WHAT CAUSED THE COOLANT LEAK IN THE FIRST PLACE. SERVCO TOLD US THAT THE SURE REPAIR (A WHOLE NEW ENGINE) WOULD EXCEED $20,000, AND THE LESS SURE REPAIR (TRYING TO FIX THE OLD ENGINE) WOULD COST $13,000. WE PICKED UP THE CAR THE NEXT DAY AND TOOK IT TO PRIAM'S AUTOMOTIVE SERVICE & REPAIR AT 2002 PAUOA ROAD. THEY DID A QUICK TEST AND SAID THAT THE HEAD GASKET WAS INDEED BLOWN, AND REFERRED US TO ROD'S AUTO SERVICE AT 972 KAWAIAHAO STREET BECAUSE PRIAM'S WAS NOT EQUIPPED TO HANDLE THAT MAGNITUDE OF REPAIR. ROD'S HAS ADVISED US THAT THE BEST SOLUTION IS REPLACING THE ENTIRE ENGINE WITH A REBUILT ENGINE FOR $5,000, BUT THIS HAS BECOME A COMMON PROBLEM WITH TOYOTA HIGHLANDERS AND LOCATING A REBUILT ENGINE ON THE MAINLAND WILL TAKE TIME. IN DOING SOME INTERNET RESEARCH, I'VE LEARNED THAT CAMRYS OF THE SAME VINTAGE HAVE ALSO DEVELOPED SIMILAR PROBLEMS, BUT IT LOOKS LIKE TOYOTA IS REFUSING TO RECALL THE VEHICLES AND FIX THE DESIGN FLAW. HTTP://WWW.CAMRYFORUMS.COM/FORUM/SHOWTHREAD.PHP?P=21539 TO DATE, THE VEHICLE REMAINS IN DISREPAIR. *TR

I NOTICED THAT THE ENGINE NOISE CHANGED. TOOK THE SUV TO THE DEALER TO CHECK IT OUT, DEALER STATED THAT THE NOISE WAS OK AND RETURNED THE VEHICLE TO ME. AFTER DRIVING THE VEHICLE LESS THAN 10 MILES RETURNED IT TO THE DEALER AND THE ENGINE WAS BLOWN. *TR

WHILE DRIVING ON THE HIGHWAY, MY ENGINE TEMP IN MY 4 CYL, 4WD 2003 HIGHLANDER SUDDENLY SPIKED HIGH. I HAD TO PULL OF THE ROAD. TOWED TO DEALER. DEALER SAID BOLTS ON SHORT BLOCK OF ENGINE WERE STRIPPED AND ALLOWED COOLANT TO LEAK OUT AND ENGINE OVERHEATED. I WAS AT 68,000 MILES, SO OVER THE WARRANTY PERIOD. I TOOK IT TO MY LOCAL DEALER AND THEY SAID I HAD A BAD WATER PUMP...I PAID TO HAVE THAT FIXED, BUT THE CAR STILL OVERHEATED. I TOOK IT BACK TO THE DEALER AND THEY THEN SAID IT WAS THE ENGINE ITSELF..THE SHORT BLOCK, SOMETHING ABOUT THE SCREWS WERE STRIPPED, THAT I HAD GOTTEN A BAD ENGINE WITH STRIPPED SCREWS. DEALERS SERVICE MANAGER TOLD ME THIS WAS A KNOWN ISSUE ON SOME 4CYL 2003 HIGHLANDER BUT COULDN'T HELP ME AS IT WAS OUT OF WARRANTY!!! THE SERVICE MANAGER CALLED ME BACK LATER AND SAID THAT TOYOTA WOULD HELP OUT...I ENDED UP PAYING A TOTAL OF ALMOST $1000 FOR THE REPLACEMENT SHORT BLOCK, WITH TOYOTA PAYING THE REST OF THE COST FOR THE SHORT BLOCK REPLACEMENT. THIS WAS ON TOP OF THE COST I PAID JUST A FEW DAYS PRIOR FOR A WATER PUMP THAT TURNED OUT TO NOT BE THE ISSUE. VERY FRUSTRATING...I HAVE ALL MY RECEIPTS FOR MAINTENANCE AND FOR THESE REPAIRS. *TR I AM FILLING OUT THIS COMPLAINT OVER A YEAR AFTER THE INCIDENT, BECAUSE I HAVE SEEN THE SAME THING IN THE COMPLAINTS AND WANTED TO ADD MINE. I DO HAVE ALL THE DOCUMENTATION FOR MY REPAIRS FOR THIS AND AM MORE THAN WILLING TO ANSWER ANY QUESTIONS, THANK YOU.

ENGINE HEAD BOLTS ON 2003 TOYOTA HIGHLANDER BECAME LOOSE; THREADS HAD WORN OFF ON 2 OR 3 BOLTS THAT HOLD THE TOP OF THE ENGINE TO THE MAIN ENGINE BLOCK. VEHICLE HAS BEEN WELL-MAINTAINED; 87,000 MILES. REPAIR REQUIRES NEW ENGINE BLOCK AT COST OF $6,400. APPEARS TO BE MANUFACTURING DEFECT - ENGINE BOLTS SHOULD NOT COME LOOSE. TOYOTA REFUSES TO PROVIDE ANY ASSISTANCE IN REPAIR. VEHICLE OVERHEATED AND WAS TOWED TO REPAIR SHOP. *TR

I HAVE A 2003 TOYOTA HIGHLANDER WITH A @AZFE MOTOR IN IT. THERE IS A MAJOR PROBLEM WITH THESE MOTORS STRIPPING OUT THE HEADBOLTSIN THE BACK OF THE MOTOR. I AM NOW IN A PREDICAMENT AS I HAVE TO GET A BLOCK WHEN I KNOW IT WILL MESS UP AGAIN AND TOYOTA HAS AS OF YET TO DO ANYTHING ABOUT IT. *TR

THE SUV WAS OUT OF COOLANT & WATER AND MY HUSBAND TAKE THE CAR TO THE DEALER TO CHECK THIS PROBLEM AND FOR REGULAR MAINTENANCE (THE CAR ONLY HAS RECEIVED SERVICE AT THE DEALER, EXCEPT FOR TIRES). THE DIAGNOSTIC WAS THAT THE SHOCK BLOCK HAS IT THREADS SEPARATED FROM THE SCREWS (OR BOLTS). THE ENGINE HAS TO BE REMOVED IN ORDER TO CHANGE THE SHOCK BLOCK. THE REPAIR HAS COST $4701.31, BECAUSE IT WAS ALSO RECOMMENDED TO CHANGE THE OIL PUMP. PREVIOUS TO THIS REPAIR, THE SUV WAS TAKEN TO THE DEALER BECAUSE THERE WAS A RECALL TO REPROGRAM ITS COMPUTER BECAUSE THE CHECK ENGINE LIGHT TURNED ON (THIS HAPPENED TWICE). WE HAVE A FULL RECORD IN THE DEALER OF ALL MAINTENANCE CHECKS AND REPAIRS THE SUV HAD. *TR

MY CAR ENGINE IS FILLED WITH SLUDGE AND THE MANUFACTURER (TOYOTA MOTOR CORP.) WILL NOT HONOR THE WARRANTY. *TR

2003 TOYOTA HIGHLANDER V6 4WD 45000 MILES. IT WA S ALREADY MORE THAN 2 YEARS I HAVE BEEN EXPERIENCING EXACTLY THE SAME PROBLEM AS 'DESCRIBED IN NHTSA RECALL 100I0160 000- CONCERNING ACCESSORY DRIVE BELT SQUEAL/ BELT TENSIONER RATTLES. DEALERSHIP RESPONSE WAS THAT NHTSA ITEM NUMBER 100I0160 DIDN'T APPLY TO V6 HIGHLANDERS. *AK

SUDDEN RAPID INCREASE IN ENGINE TEMPERATURE. MECHANIC FOUND LEAK AT BACK OF HEAD GASKET. TWO BOLTS TO ENGINE BLOCK WERE LOOSE ENOUGH TO BE REMOVED BY HAND AND NEW BOLTS COULD NOT BE REINSTALLED DUE TO DEFECT IN THREADS. ONLY REPAIR SAID TO BE NEW ENGINE. VEHICLE WAS PREVIOUSLY WELL MAINTAINED AND HAD 73,000 MILES. *JB

TL*THE CONTACT OWNS A 2003 TOYOTA HIGHLANDER. WHILE DRIVING AT AN UNKNOWN SPEED, THE CHECK ENGINE LIGHT ILLUMINATED. TWO TO THREE MONTHS LATER, THE CONTACT RECEIVED A RECALL NOTICE REGARDING THE ENGINE. TOYOTA REPAIRED THE VEHICLE. THE CURRENT MILEAGE WAS 50,000 AND FAILURE MILEAGE WAS 40,000.

1) NOTICED RADIATOR FLUID SLOWLY LEAKING UNDER BOTTOM (TOWARDS BACK OF ENGINE). HAD MECHANIC CHECK ENGINE, - WAS LEAKING AT BACK OF HEAD GASKET, TOOK APART ENGINE AND NOTICED 3 BACK BOLTS TO ENGINE BLOCK (HEADS) COULD BE REMOVED BY HAND. WHEN HEADS WERE FIXED COULD NOT INSTALL NEW BOLTS (WOULD NOT TIGHTEN) - MECHANIC SAID THERE IS A MANUFACTURER DEFECT - NO THREADS. 2) CANNOT FIX ENGINE - NEED NEW ENGINE 3) TRYING TO GET TOYOTA TO PAY FOR REPAIR - IN PROGRESS WITH THEM NOW - NO RESOLUTION YET. *JB

A FEW MONTHS AFTER THE PURCHASE OF MY NEW 2003 TOYOTA HIGHLANDER, IT HAS DEVELOPED A PRONOUNCED "TICKING" SOUND WITHIN THE ENGINE. I AM CONCERNED THAT THIS COULD MEAN THAT A PROBLEM IS DEVELOPING, AND IT IS ALSO AN ANNOYING SOUND IN AN OTHERWISE QUIET VEHICLE. I AM GOING TO REPORT THIS TO TOYOTA VIA THEIR WEB SITE. THIS VEHICLE COST ME ALMOST $35K AND I DO NOT FEEL THAT THIS PROBLEM IS INSIGNIFICANT NOR SHOULD BE IGNORED BY THE DEALER. SHOULD I CHOOSE TO SELL THE VEHICLE, I WOULD SUSPECT THIS WILL SIGNIFICANTLY LOWER THE PRICE I COULD ASK AND MAY EVEN PREVENT ME FROM UNLOADING IT ALTOGETHER. *NM