2003 TOYOTA SIENNA Engine And Engine Cooling Problems
4 NHTSA complaints on file
Engine And Engine Cooling Issues in the 2003 TOYOTA SIENNA
4 engine and engine cooling complaints have been filed with NHTSA for the 2003 TOYOTA SIENNA. Of these, 1 involved a crash, 0 involved a fire, and 0 resulted in injury.
4
Complaints
1
Crashes
0
Fires
0
Injuries
0
Deaths
All Engine And Engine Cooling Complaints
HERE IS A LIST OF MECHANICAL MALFUNCTIONS INDICATING MANUFACTURING DEFECTS ON MY TOYOTA SIENNA. THE CURRENT MODELS RECALLED BY TOYOTA MOTORS DO NOT COVER ALL VEHICLES WITH DEFECTS. BASED ON MY PERSONAL EXPERIENCE IN THE PAST FEW YEARS, TOYOTA MOTORS HAVE A LOT OF LYING EMPLOYEES IN THEIR AUTHORIZED DEALERSHIP. IN SHORT, TOYOTA MOTORS PUT THEIR BUSINESS INTEREST WAY AHEAD OF THE LIFE SAFETY OF AMERICAN PEOPLE. I HOPE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION WILL CHECK THIS MANNER AND ENFORCE PROPER REGULATION. UPDATED 03/14/10 *BF *TR THE CONSUMER STATED THE ENGINE WOULD STALL. THE DEALER REPLACED THE UPPER RADIATOR HOSE AND COOLANT. THE CONSUMER ALSO STATED HE HAD PROBLEMS STOPPING THE VEHICLE, WHICH LED TO AN ACCIDENT. UPDATED IVOQ 10/12/10
2003 TOYOTA SIENNA, SPONTANEOUS, UNCONTROLLED ACCELERATION. FIRST OCCURRENCE ON OR ABOUT 7/20/09. AT LEAST 3 SUCCESSIVE OCCURRENCES. TOYOTA DEALER (LARRY H MILLER BIG TOYOTA CITY) WAS ABLE TO DUPLICATE PROBLEM IN ROAD TESTS. WHEN IT HAPPENED TO ME, I THREW TRANSMISSION IN NEUTRAL. ENGINE HIT REDLINE IN TIME IT TOOK TO TURN KEY TO OFF.(1-2 SECONDS) FIRST MIS IDENTIFIED AS STICKING THROTTLE CABLES. TOYOTA REPLACED CABLES EVENTUALLY (AFTER RECURRENCE) REPLACED THROTTLE BODY. WIFE NEARLY HAD ACCIDENT WITH FIRST OCCURRENCE, HAD TO STAND ON BRAKES TO GET CAR STOPPED. SHUT DOWN VEHICLE IN LEFT TURN LANE ON BUSY SIX LANE ROAD. VEHICLE TOWED. I HAD TO REPLACE BRAKES/ROTORS. ABLE TO AVOID ACCIDENT WITH RECURRENCE BY SHOWING WIFE HOW TO THROW TRANSMISSION IN NEUTRAL AND SHUT DOWN VEHICLE. WIFE DOES NOT TRUST VEHICLE ALTHOUGH NEW THROTTLE BODY SEEMS TO HAVE SOLVED PROBLEM. TOYOTA KEPT VEHICLE TWICE FOR TOTAL OF TWO WEEKS, WE...
WHEN PICKING UP MY VEHICLE FROM TOYOTA TOWN IN STOCKTON, CA, WE DISCOVERED THAT THE OIL LIGHT WAS ON FOLLOWING A 60,000 MILE SERVICE. THE MECHANIC RELEASED THE VEHICLE TO US WITHOUT EXPLANATION. THEN AFTER TWO VISITS IN THE SAME DAY TO THE SERVICE DEPARTMENT, MY HUSBAND DEMANDED AN EXPLANATION. THE MECHANIC SAID IT WAS OUR PROBLEM THAT THERE WAS SLUDGE OR "GEL" IN THE OIL THAT WAS RELEASED WHEN HE REMOVED THE HEAD FOR SERVICING. AFTER CHANGING THE OIL HIMSELF TWICE, MY HUSBAND SAW THE OIL LIGHT GO OFF. THINKING THAT IT WAS SAFE TO DRIVE, WE TOOK IT ON THE HIGHWAY THE NEXT DAY. WITHIN 100 MILES THE ENGINE FROZE, LEAVING US STRANDED ON A MAJOR INTERSTATE. CURRENTLY, THE DEALER IS REFUSING TO FIX THE PROBLEM EVEN THOUGH TOYOTA RECENTLY SETTLED THIS PROBLEM WITH THE OWNERS OF THE 2002 MODELS. OUR VAN IS A 2003. THIS PROBLEM OBVIOUSLY...
OUR 2003 SIENNA VAN (TOYOTA) HAS BEGUN THROWING BLUE SMOKE OUT THE EXHAUST. WE TOOK IT TO A MECHANIC THAT TOLD US THAT IT'S A VALVE,RING SLUDGE PROBLEM IN THE MOTOR . HE SAID IT'S BEEN HAPPENING TO THIS PARTICULAR MODEL . I RESEARCHED IT ON GOOGLE AND FOUND THIS WEBSITE FROM OTHER OWNERS OF SIENNAS. FROM WHAT I UNDERSTAND TOYOTA HAS NOT BEEN WILLING TO FIX THIS PROBLEM AND HAS IN FACT FOUND A "LOOPHOLE"THROUGH AN ACKNOWLEDGEMENT OF THE PROBLEM. SO, HERE I AM WITH MY COMPLAINT. HOPE THAT YOU CAN HELP US OUT AS I DO NOT HAVE THE FUNDS TO BUY A NEW ENGINE. THANK YOU. *JB
Other 2003 TOYOTA SIENNA Problem Areas
Latcheslockslinkages
11 complaints
Vehicle Speed Control
11 complaints
Latcheslockslinkagesdoorslatch
9 complaints
Power Trainautomatic Transmission
7 complaints
Structurebodydoor
7 complaints
Tires
6 complaints
Structurebody
5 complaints
Fuel System Gasoline
4 complaints
Seat Beltsrearother
4 complaints
Service Brakes Hydraulic
4 complaints
Suspension
4 complaints
Electrical System
3 complaints
Equipment
3 complaints
Service Brakes Hydraulicantilocktraction Controlelectronic Limited Slip
3 complaints
Structure
3 complaints
Air Bags
2 complaints
Service Brakes Hydraulicfoundation Componentsdiscrotor
2 complaints
Child Seatharness Retainerchest Clip
1 complaint
Electrical System12v24v48v Batterycables
1 complaint
Electronic Stability Control Esc
1 complaint
Engine And Engine Coolingengine
1 complaint
Engine And Engine Coolingexhaust Systememission Controlcatalytic Convertor
1 complaint
Equipmentelectrical
1 complaint
Latcheslockslinkageshoodlatch
1 complaint
Power Train
1 complaint
Power Trainautomatic Transmissionlever And Linkagecolumn Shift
1 complaint
Power Trainaxle Assembly
1 complaint
Seat Belts
1 complaint
Seats
1 complaint
Service Brakes
1 complaint
Service Brakes Hydraulicfoundation Components
1 complaint
Service Brakes Hydraulicfoundation Componentsdisc
1 complaint
Service Brakes Hydraulicfoundation Componentsdiscpads
1 complaint
Service Brakes Hydraulicfoundation Componentsdrumshoeslinings
1 complaint
Steering
1 complaint
Steeringgear Box Other Than Rack And Pinion
1 complaint
Steeringhydraulic Power Assistpower Steering Fluid
1 complaint
Steeringlinkagestie Rod Assembly
1 complaint
Structurebodydoorhinge And Attachments
1 complaint
Structurebodyhatchbackliftgate
1 complaint
Structurebodytailgate
1 complaint
Structureframe And Members
1 complaint
Tirestreadbelt
1 complaint
Visibility
1 complaint
Visibilityglass Siderear
1 complaint
Visibilitysunmoon Roof Assembly
1 complaint
Visibilitywindshield
1 complaint
Wheelslugsnutsboltsstuds
1 complaint