2011 LEXUS GX460 Engine Problems
2 NHTSA complaints on file
Engine Issues in the 2011 LEXUS GX460
2 engine complaints have been filed with NHTSA for the 2011 LEXUS GX460. Of these, 0 involved a crash, 0 involved a fire, and 0 resulted in injury.
2
Complaints
0
Crashes
0
Fires
0
Injuries
0
Deaths
All Engine Complaints
LEXUS GX460 & TOYOTA 4.6L EXHAUST MANIFOLD CRACKS AND POTENTIAL CARBON MONOXIDE POISONING. THE SYMPTOMS I IDENTIFIED WERE A DIESEL-LIKE CLATTER ON COLD START WHICH WENT AWAY WHEN THE ENGINE WARMED UP. I DID FEEL ABOVE NORMAL FATIGUE WHEN SITTING IN THE CAR FOR LONG PERIODS. MY MULTIPLE REPAIR ATTEMPTS WITH THE LEXUS DEALER SHOULD BE DOCUMENTED WITH LEXUS. LEXUS AND TOYOTA 4.6L V8 EXHAUST MANIFOLDS HAVE CHRONIC CRACKING PROBLEMS. THESE CRACKS COULD EXPOSE DRIVERS AND PASSENGERS, INCLUDING YOUNG CHILDREN, THE ELDERLY AND PEOPLE IN POOR HEALTH, TO CARBON MONOXIDE POISONING WHEN THE CAR IS IN TRAFFIC OR STATIONARY WITH THE ENGINE RUNNING FOR LONG PERIODS OF TIME. IT TOOK OVER 2 YEARS OF COMPLAINTS WITH MY LOCAL LEXUS DEALER AND ME, THE OWNER, SUGGESTING THE 'HIGHLY TRAINED AND CERTIFIED LEXUS TECH' CHECK OUT THE EXHAUST MANIFOLD. IT WAS DETERMINED THERE WAS A CRACK. THE NOISE WAS CAUSED BY THE...
THROTTLE ACTUATOR VALVE STUCK OPEN, REPAIRED 3 DIFFERENT TIMES & NOW SECONDARY AIR INJECTION SYSTEM SWITCHING VALVE IS STUCK OPEN BANK 1 CAR STALLS OUT & GOES INTO LIMP MODE. CHECK ENGINE LIGHT, 4LO, TRAC LIGHT- VEHICLE IS UNSAFE TO DRIVE. CODES P2440 & P2442 THIS IS A FAULTY PART ON TOYOTA TUNDRA & SEQOUIA.