2006 Scion tC Engine Problems

The contact owns a 2006 Scion TC. The contact stated that after performing a vehicle inspection of the engine compartment, he became aware that the coolant reservoir was abnormally low; eventually finding a leak near the rear of the engine. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the cylinder head bolts resulting in a coolant leak. The vehicle was not repaired. After investigating the failure, the contact related the failure to Technical Service Bulletin: S-SB-0004-11. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 287,000.

ENGINE BLOCK BOLTS ARE ATTACHED TO AN ALUMINUM BODY OF THE ENGINE CAUSING BOLTS TO BECOME LOOSE WITH TIME AND CAN NOT RETHREAD. CAUSING COOLANT TO LEAK FROM BOLT AREA

LEAKING ENGINE COOLANT FROM BACK OF CYLINDER HEAD. TOOK CAR IN TO HAVE HEAD GASKET CHANGED WAS TOLD THE GASKET WAS NOT THE PROBLEM. THE PROBLEM WAS THE ENGINE BLOCK THAT THE THREADS IN THE ENGINE BLOCK WERE STRIPPED. WAS TOLD BY TOYOTA THAT IT WAS A BIG PROBLEM AND IT WOULD COST BETWEEN 1500-1700 TO FIX THE HEAD BOLT THREADS. CONSIDER THE NUMBER OF CARS TRUCKS AND SUVS WITH THIS ENGINE THERE SHOULD BE A RECALL OR SOME TYPE OF OWNER ASSISTANCE FOR THIS PROBLEM.

I CHANGE MY OIL EVERY 3000 OR LESS MILES WITH FULL SYNTHETIC AMSOIL 5W-20. I HAVE TO PUT IN 1/2 A QUART OF OIL FOR EVERY GAS FILL UP. I'M A HIGHWAY DRIVER THAT SETS CRUISE CONTROL AT 75. I DON'T DIVE CRAZY. 2007 HAS AN EXTENDED WARRANTY, WHERE IS THE ONE FOR 2006?

TL* THE CONTACT OWNS A 2006 TOYOTA SCION TC. WHILE DRIVING AT ANY SPEED, THE CHECK ENGINE WARNING LIGHT ILLUMINATED AND THERE WAS A FUEL ODOR. THE VEHICLE WAS TAKEN TO THE INDEPENDENT MECHANIC WHO DIAGNOSED THAT THE IGNITION SWITCH LEAKED. AS A RESULT, THE CHARCOAL CANISTER WAS REPLACED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE APPROXIMATE FAILURE MILEAGE WAS 47,841.

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

THIS CAR IS CONSTANTLY BURNING OIL. MY OIL PRESSURE LIGHT NEVER FAILS TO TURN ON SOMEWHERE BETWEEN 1000-2000 MILES AFTER EACH OIL CHANGE, AND I HAVE TO REFILL TO STOP THE LIGHT FROM COMING BACK ON.

THE ENGINE SOUND INCREASED WHILE I WAS DRIVING ON HIGHWAY. GOT BACK HOME CHECK THE OIL LEVEL IT WAS DRY. FOUND OUT THAT THESE SCIONS HAVE A PROBLEM WITH OIL CONSUMPTION. *TR

OIL CONSUMPTION!!! I'VE OWNED MY 2006 SCION TC FOR ABOUT 5 YEARS AND HAVE RECENTLY BEEN EXPERIENCING A HUGE OIL CONSUMPTION ISSUE. IT DIDN'T PHASE ME AT FIRST, ALTHOUGH NOW I NEED TO SET MY ODOMETER TO ZERO AND REFILL MY OIL EVERY 800 MILES. I BELIEVE IT IS CERTAIN INTERNAL PARTS THAT ARE CAUSING THIS PROBLEM, SUCH AS THE PISTONS AND THE PISTON RINGS . I'VE NOTICED THAT THIS HAS BEEN AN ONGOING PROBLEM FOR A LOT OF SCION TC'S LATELY, WHICH HAS BEEN TAKEN CARE OF THROUGH AN EXTENDED WARRANTY PROGRAM FOR THE MODEL YEARS OF 2007-2009. I'M TRYING TO PROVE THAT ISSUE IS ALSO AFFECTING THE 2006 MODEL YEAR TOO, AND WOULD GREATLY APPRECIATE IT IF I COULD RECEIVE SOME HELP CONCERNING THIS ISSUE. I WILL UPLOAD A PHOTO OF AN OLD PISTON THAT SHOWS THIS EXACT PROBLEM.

SCION TC 2006 - TEMPERATURE WENT ALL THE WAY TO HOT ON THE GAUGE. THE CHECK ENGINE LIGHT CAME ON. THE CAR STARTED RUNNING ROUGH. TOOK THE CAR TO LOCAL SERVICE STATION. THEY TOOK THE HEAD OFF. SAID THE ENGINE BLOCK BOLTS ARE STRIPPED. MECHANIC IS CHARGING $3000+ TO FIX. SEE THIS ISSUE POSTED HERE AND ELSEWHERE ON LINE WITH THE 2006 SCION. *TR

HEAD GASKET LEAKING FOUND 6 HEAD BOLTS LOOSE. INSTALLED NEW HEAD GASKET SET, NEW INTAKE MANIFOLD. PAID 2000 DOLLARS FOR REPAIRS, NOW HAVING PROBLEM WITH THE ENGINE. MAKES LOUD NOISE AND OVERHEATS. MECHANIC AND BAR AGENT ADVISED IT WAS A MANUFACTURING PROBLEM. HEADBOLTS CAME LOOSE AGAIN AND NOW I NEED NEW ENGINE. PREVIOUS TO THIS MY INSURANCE HAD PAID A TOTAL OF 5000 DOLLARS FOR SOME MECHANICAL AND BODY WORK. I HAVE BEEN WITHOUT A VEHICLE FOR ALMOST SEVEN MONTHS NOW. CALLED TOYOTA MANUFACTURE COMPANY THEY TOLD ME THE ONLY WAY THEY WOULD INSPECT THE VEHICLE WOULD BE IF THEY CHARGED ME. I DO NOT HAVE THE MONEY TO AFFORD THE REPAIR AGAIN AND TO BUY A NEW ENGINE. I JUST NEED IT TO BE INSPECTED ESPECIALLY SINCE I HAD A GOVERNMENT OFFICIAL FROM THE BUREAU OF AUTO REPAIR CONFIRM THAT THERE WAS A MANUFACTURING DEFECT. *TR

ENGINE HAS SEVER OIL CONSUMPTION TO WHERE WE ARE ADDING A QUART OR MORE EVERY 1000 MILES OR SO IN BETWEEN OIL CHANGES. WORRIES ME TO WERE I CHECK EVERY WEEK JUST TO MAKE SURE THERE IS ENOUGH OIL. I SHOULD NOT HAVE TO WORRY ABOUT THAT SORT OF THING. WHILE DRIVING OM STREETS OR HIGHWAYS, HAPPENS EVERY WHERE, AS YOU SHIFT AT A CERTAIN RPM (ABOUT 1500-2500-3000 ECT) THE CAR WILL HESITATE FOR A FEW SECONDS. WE ORIGINALLY THOUGHT IT WAS FROM THE A/C SINCE I BOUGHT THE CAR IN THE SUMMER TIME BUT ONCE THE A/C IS OFF THE CAR STILL HESITATES. WE HAVE NOTICED WE ARE NOT THE ONLY ONES WITH THIS ISSUES BUT WE ARE THE ONLY YEAR THAT IS REPORTING THEM. WHAT IS GOING ON WITH MY ENGINE AND FUEL SYSTEM?! PLEASE HELP!!!!

THE ENGINE COVER IS CRACKED, THIS COVER HAS NEVER BEEN REMOVED FOR ANY TYPE OF REPAIR. WONDERING IF THE HEAT OF THE ENGINE CAUSED IT TO CRACK. *TR

TOOK MY CAR TO THE SHOP FOR REGULAR MAINTENANCE AND FOUND OUT THAT MY CAR WAS LEAKING COOLANT OUT OF THREE HEAD BOLTS ON BACK OF ENGINE BLOCK. THEY WERE STRIPPED OUT BECAUSE OF TOYOTA IMPROPER DESIGN OF THE BLOCK. 4 1/2" HOLE WITH 4" BOLT WITH ONLY THE BOTTOM 1 1/2" THREADED WHICH IS ONLY AN INCH TO INCH THREAD. POUR DESIGN FOR AN ALUMINUM BLOCK FOR THAT TENSILE STRENGTH. ITS AN 06 SCION TC THEY WANTED 6000 TO REPLACE BLOCK. EVEN CALLED CORPORATE BUT THEY WOULDN'T DO ANYTHING ABOUT IT SINCE ITS OUTSIDE OF POWERTRAIN WARRANTY WHEN THEY KNOW ITS A KNOWN ISSUE. THEY EVEN ISSUED A TSB OUT IN 3/2/2011. SOMETHING NEEDS TO BE DONE I HAVE SEEN MANY CASES ON THIS ISSUE AND TOYOTA IS NOT WILLING TO DO ANYTHING ABOUT THEIR PROBLEM AND THEIR POUR DESIGNS. SERVICE BULLETIN: S-SB-0004-11. *KB

MY CAR CONSUMES ABOUT TWO QUARTS OF OIL PER 1000 MILES. MECHANICS HAVE TOLD ME THAT IT DOESN'T APPEAR TO BE LEAKING, IT COULD BE BEING BURNED THOUGH. I KEEP MY CAR RUNNING WITH FREQUENT OIL CHANGES AND GO THROUGH A GOOD AMOUNT OF OIL EVERY MONTH IN BETWEEN. MANY OTHER TC DRIVERS HAVE TOLD ME THEY HAVE THIS SAME ISSUE ALSO. *TR

EXITING HIGHWAY, OIL LIGHT ON MY 2006 SCION TC FLICKERED ON. I PULLED OVER AND THERE WAS NO OIL ON THE DIPSTICK, ALL THERE WAS IS A BLACK GOOP. I REGULARLY CHANGE MY OIL. *TR

OIL CONSUMPTION

TRD SUPERCHARGER WAS BOUGHT AND INSTALLED AT DEALER MULTIPLE ISSUES WITH PRODUCT BLOWN SUPERCHARGER AND ENGINE AND PAID FOR ANOTHER SUPERCHARGER OUT OF POCKET AFTER 7 SUPERCHARGERS AND 5 MOTOR BLOCKS CAR WAS PUT BACK TO STOCK AND WAS NEVER REIMBURSED FOR EITHER SUPERCHARGER AND ITEM WAS DISCONTINUED DUE TO MULTIPLE PEOPLE HAVING SIMILAR PROBLEMS WROTE TO CORPORATE AND THEY STILL REFUSE TO REIMBURSE FOR MY PAID FOR EQUIPMENT A LOT OF PEOPLE HAVE HAD THE EQUIPMENT REPAIRED AND EVEN HAD THE CAR FULLY REIMBURSED MINUS DEPRECIATION I'M ONLY ASKING FOR REIMBURSEMENT OF THE 2 UNITS THAT I PAID FOR THAT TOYOTA HAS TAKEN AWAY FROM ME. *TR