1999 Toyota Sienna Engine

A DESIGN FLAW IN THE ENGINE CAUSED THE ENGINE TO DEVELOP SLUDGE, THIS IS WHEN THE OIL TURNS INTO A THICK TAR LIKE GOOP THAT CLOGS THE ENGINE A OIL SYSTEMS, WHEN THE VEHICLE WAS TAKE TO THE DEALER IT WAS STATED THAT THE ONLY CAUSE WAS IMPROPER MAINTENANCE WHICH VOIDS THE CUSTOMERS WARRANTY, THERE WAS NO WARNING OR INDICATION THAT THE ENGINE AS ABOUT TO BE DAMAGED, THE CONSUMER HAD TO HAVE A NEW ENGINE INSTALLED IN THEIR NEW VEHICLE. NLM

PURCHASED A MANUFACTURER-CERTIFIED SIENNA AND IT SPEWED BLUE SMOKE ON THE FIRST COLD START. ENGINE SLUDGE WAS BLAMED FOR THE PROBLEM AND THE MANUFACTURER COVERED THE ISSUE UNDER WARRANTY SINCE THE VEHICLE WAS CERTIFIED AND RECENTLY PURCHASED. *AK

AT 30,874 MILES OUR VAN STARTED BLOWING BLUE SMOKE. WE TOOK IT TO THE DEALER WHO TOLD US THAT THE ENGINE HAD "SLUDGED UP" AND WOULD REQUIRE AT LEAST $3,000 TO FIX. WE WERE ALSO TOLD THAT IT WASN'T COVERED BY WARRANTY (3 YEAR/36,000 MILES). WE ASKED WHY AND WERE TOLD THAT THE SLUDGE COULD ONLY BE CAUSED BY LACK OF MAINTENANCE (OIL CHANGES). WE PRODUCED RECEIPTS SHOWING OIL CHANGES WERE DONE, BUT THE COMPANY STILL WON'T COVER THE WORK UNDER WARRANTY. WE HAVE SPOKE TO THE TOYOTA'S REGIONAL CUSTOMER RELATIONS ADMINISTRATOR AND GONE THROUGH THE TOYOTA PROVIDED ARBITRATION PROCEEDINGS TO NO AVAIL. WE WENT TO THE INTERNET AND SEARCHED UNDER "TOYOTA SIENNA SLUDGE" AND FOUND DOZENS OF OTHER PEOPLE HAVING THE SAME PROBLEM WITH THEIR SIENNAS AND WARRANTY COVERAGE. WE BELIEVE THE IS A DEFECT IN THE SIENNA V6 ENGINE CAUSING THE SLUDGE BUILD UP.*AK

BLUE SMOKE IS COMING FROM TAILPIPE OF VEHICLE. THERE IS SLUDGE BUILD UP IN ENGINE. DEALER CLAIMS THIS WAS CAUSED BY NON CHANGING OF OIL. CONSUMER STATED THAT OIL WAS CHANGED EVERY 3000 MILES. ENGINE NEEDED TO BE REBUILT OR REPLACED.*AK

NO SUMMARY LISTED FOR ABOV EVEHICLE. *AK

EXCESSIVE SLEDGE BUILD UP IN ENGINE WHICH CAUSED ENGINE FAILURE. MANUFACTURER NOTIFIED, AND REFUSED TO HONOR WARRANTY. FEEL FREE TO PROVIDE ANY FURTHER DETAILS ON THIS MATTER. *AK

NO SUMMARY LISTED FOR ABOVE VEHICLE. *AK

NO SUMMARY.