Problems · by component
2006 Toyota Avalon engine and engine cooling problems
57 owner complaints to NHTSA about the 2006 Toyota Avalon cite engine and engine cooling, 16% of all 360 complaints for this model year.
Complaints
57
16% of all complaints
Crashes
0
Reported by owners
Fires
1
Reported by owners
Injuries
0
Reported by owners
What owners say about the engine and engine cooling
Verbatim from NHTSA complaints, newest first
“2006 TOYOTA AVALON CT DEALER QUOTED $1800 FOR TIMING COVER OIL LEAK; 17 HOURS OF LABOR, INEXPENSIVE PART; 3 RECALLS TO DATE WITH THIS VEHICLE-EXTREME INCONVENIENCE AND SUSPECT OF ANY ISSUES ON THIS CAR AND TOYOTA RECORD IS HORRENDOUS PER MULTIPLE SAFETY AND OTHER RECALLS. I'VE SEEN OTHER COMPLAINTS ON THIS TIMING COVER RESEAL EXACT ISSUE. A SERVICE BULLETIN WAS SUPPOSEDLY ISSUED IN 2007 EG 019-07. NHTSA BULLETIN 10021531. WHEN WILL CONSUMERS GET PROTECTION ON THESE FURTHER TOYOTA ISSUES?? I WILL RAISE THIS TO HIGHEST LEVELS. *TR”
“WE SPOTTED DROPS OF OIL COMING FROM OUR TOYOTA AVALON 2006. A TOYOTA DEALERSHIP DIAGNOSED THE PROBLEM TO BE A SLOW OIL LEAK FROM THE FRONT TIMING COVER. THE DEALERSHIP ESTIMATES IT WILL COST OVER $2,200 TO RESEAL OR REPLACE THE COVER WHICH COSTS ABOUT $50. WE HAVE DECIDED, AS OF NOW, TO NOT SPEND THE MAJOR DOLLARS INVOLVED, AND KEEP A EYE ON THE OIL IN THE CAR. WE HAVE ALSO RESEARCHED THAT PARTICULAR PROBLEM IN THE 2006 AVALON, AND HAVE FOUND NHTSA TECHNICAL SERVICE BULLETIN, ITEM NUMBER 10021531, AND 2006 TOYOTA AVALON, SERVICE BULLETIN #: 01907. THE SUMMARY OF THIS BULLETIN READS: "ENGINE OIL LEAK FROM FRONT TIMING COVER." THE BULLETIN SEEMS TO BE DESCRIBING OUR PROBLEM EXACTLY. WHEN A COMPARISON BETWEEN THE MONEY INVOLVED WITH THE REPAIR ($2,200) TO THE PART TOYOTA WILL REPLACE ($50), THERE'S SOMETHING WRONG WITH THE 2006 AVALON'S DESIGN AND/OR THE SITUATION CALLS FOR A TOYOTA RECALL. *TR”
“TL* THE CONTACT OWNS A 2006 TOYOTA AVALON. WHILE DRIVING AT APPROXIMATELY 5 MPH AN EXPLOSION OCCURRED IN THE ENGINE AND SMOKE BEGAN TO COME FROM UNDER THE HOOD. THE VEHICLE WAS PULLED OVER AND THE HIGHWAY PATROL APPEARED ON THE SCENE. A POLICE REPORT WAS FILED BUT NO INJURIES WERE REPORTED. THE VEHICLE WAS TOWED TO AN INSURANCE COMPANY GARAGE WHERE AN INDEPENDENT MECHANIC WAS UNABLE TO DIAGNOSE THE FAILURE. THE VEHICLE HAD NOT BEEN REPAIRED. THE FAILURE AND CURRENT MILEAGES WERE 142,000.”
“IN JULY 2009 OUR 2006 TOYOTA AVALONXL HAD A VVT-I OIL HOSE EXPLODE CAUSING OIL DAMAGE AND PERSONAL REPAIR EXPENSE OF $277.67. I WAS NOTIFIED BY TOYOTA OF A RECALL TO REPLACE THIS HOSE. IT STATED IF ALREADY REPLACED THEN TO SEND IN THE REPAIR ORDER, PROOF OF PAYMENT AND PROOF OF OWNERSHIP FOR REIMBURSEMENT. THIS WAS SUBMITTED TO TOYOTA ON JANUARY 11, 2010. NO RESPONSE WAS RECEIVED UNTIL I CONTACTED THEM AFTER 71 DAYS. AFTER A LENGTHY DELAY, I WAS DENIED REIMBURSEMENT BECAUSE REPAIRS WERE NOT COMPLETED BY AN AUTHORIZED TOYOTA DEALER. MY COMPLAINT IS I AM RESPONSIBLE FOR DAMAGES AND REPAIRS DUE TO TOYOTA'S DEFECTIVE PARTS WITHOUT REIMBURSEMENT AFTER TOYOTA ADMITTED THEIR PARTS WERE DEFECTIVE. *TR”
“MY 2006 TOYOTA AVALON HAD A SUDDEN LOSS OF ALL MY OIL FROM A RUPTURED OIL LINE WHILE I WAS DRIVING HOME FROM THE STORE 2 MILES AWAY. APPARENTLY TOYOTA KNEW ABOUT THIS PROBLEM BASED ON OTHER NUMEROUS SIMILAR INCIDENTS BASED ON WEB COMMENTS. THE OIL WARNING LIGHT NEVER WENT ON AND I NEVER RECEIVED A RECALL NOTICE ABOUT THIS PROBLEM WHICH WAS SENT TO OTHER AVALON OWNERS. *TR”
“1. I WAS AT A STOPLIGHT, FOOT FIRMLY ON THE BRAKE, DOING NOTHING BUT WAITING FOR THE LIGHT TO CHANGE. SUDDENLY I REALIZED MY CAR WAS MOVING FORWARD, SO I PUSHED THE BRAKES HARDER. THE PEDAL WENT DOWN FURTHER BUT THE CAR KEPT MOVING FORWARD. ALL OF THIS TOOK ONLY A FEW SECONDS. THEN I HEARD AND FELT THE ENGINE ACCELERATING VERY LOUDLY. JUST AT THAT MOMENT THE LIGHT CHANGED, AND TRAFFIC SPED AHEAD. WITHOUT THINKING, I PUT MY FOOT ON THE ACCELERATOR AND THE ENGINE STOPPED ROARING, THE CAR ACCELERATED NORMALLY AND THE BRAKES WERE RESPONSIVE. 2. THIS WAS THE ONLY INCIDENT. 3. I WAS ACTUALLY ON MY WAY TO THE TOYOTA DEALER FOR ROUTINE MAINTENANCE WHEN THE INCIDENT OCCURRED, SO I CONTINUED ON MY WAY. WHEN I GOT TO THE DEALER, I HAD THE PERSON WHO MET ME AT MY CAR CHECK THE FLOOR MAT BEFORE I WALKED AWAY. HE SAID IT WAS FINE. TOYOTA PERFORMED ALL RECALL ACTIONS, ASKED IF I WANTED THE COMPUTER RE-PROGRAMMED TO ALLOW THE BRAKES TO OVERRIDE EVERYTHING ELSE (I SAID YES), AND FILLED OUT THE FORMS AND PERFORMED ACTIONS IN ACCORDANCE WITH AN SUA INCIDENT. THEY GAVE ME A LOANER AND THE NEXT DAY TOLD ME THAT MY CAR WOULD BE RELEASED. I ASKED FOR, AND RECEIVED A COPY OF THE FORM…”
Showing 6 of 57 reports. Read every report on NHTSA.gov.
Data from NHTSA Complaints API (owner reports, unverified) · synced Nov 8, 2026NHTSA vehicle page
Complaints are unverified owner reports to NHTSA and are not normalized for sales volume. One complaint can cite several components.