NHTSA owner reports · September 18, 2026 snapshot.
Engine And Engine Cooling complaints
24 reportsClear category filter116,367 miles · Feb 28, 2005
Engine And Engine Cooling
OUR VEHICLE'S OIL CONSUMPTION BEGAN TO INCREASE AT APPROXIMATELY 90K MILES. IT WOULD TAKE AT LEAST A QUART OF OIL EVERY 700 MILES OR SO. THE CHECK ENGINE LIGHT ALSO ILLUMINATED AROUND 100K MILES. FINALLY BROUGHT IT TO OUR LEXUS DEALERSHIP AND TOLD THAT WE NEEDED A NEW ENGINE BLOCK AND TOP END OVERHAUL. THE REASON GIVEN WAS "OIL …
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OUR VEHICLE'S OIL CONSUMPTION BEGAN TO INCREASE AT APPROXIMATELY 90K MILES. IT WOULD TAKE AT LEAST A QUART OF OIL EVERY 700 MILES OR SO. THE CHECK ENGINE LIGHT ALSO ILLUMINATED AROUND 100K MILES. FINALLY BROUGHT IT TO OUR LEXUS DEALERSHIP AND TOLD THAT WE NEEDED A NEW ENGINE BLOCK AND TOP END OVERHAUL. THE REASON GIVEN WAS "OIL SLUDGE" DUE TO LACK OF PROPER SERVICE. THE SERVICE DEPT QUOTED US 8,000 DOLLARS TO DO THE REPAIRS. UNFORTUNATELY WE DID NOT HAVE THE MONEY SO WE ARE GOING TO TRY AND FIND A NEW ENGINE ON OUR OWN.
NHTSA ODI #10112270
Mileage unknown · Feb 10, 2005
Engine And Engine Cooling
TOOK 1999 LEXUS RX 300 IN FOR REGULAR SERVICE AT 39,000 MILES, AND ASKED DEALER TO CHECK ENGINE NOISE. DEALER FOUND CRACKED EXHAUST MANIFOLD AND SPLIT EXHAUST PIPE COMING OFF MANIFOLD. MAIFOLD REPLACED UNDER EXTENDED WARRANTY PLAN BUT SPLIT EXHAUST NOT COVERED BECAUSE CAR WAS OUT OF ORIGINAL WARRANTY. DEALER CARRIED EXHAUST …
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TOOK 1999 LEXUS RX 300 IN FOR REGULAR SERVICE AT 39,000 MILES, AND ASKED DEALER TO CHECK ENGINE NOISE. DEALER FOUND CRACKED EXHAUST MANIFOLD AND SPLIT EXHAUST PIPE COMING OFF MANIFOLD. MAIFOLD REPLACED UNDER EXTENDED WARRANTY PLAN BUT SPLIT EXHAUST NOT COVERED BECAUSE CAR WAS OUT OF ORIGINAL WARRANTY. DEALER CARRIED EXHAUST MANIFOLDS IN STOCK DUE TO FREQUENCY OF PROBLEM. THIS WAS A DESIGN/MANUFACTURING DEFECT AND SHOULD HAVE BEEN COVERED BY MANUFACTURER.*AK
NHTSA ODI #10110272
62,000 miles · Jul 21, 2004
Engine And Engine Cooling
HAD MY 60,000 MILE SERVICE DONE ON MY 1999 RX300. THE WIFE DROVE IT WHEN I GOT HOME AND TOLD ME THE CAR WAS RUNNING SLUGGISH, DIDN'T ACCELERATE LIKE IT DID BEFORE I BROUGHT IT IN. I TOOK THE CAR OUT TO DRIVE IT AND FEEL WHAT SHE WAS TELLING ME AND NOTICED THAT WHEN I WOULD LET OFF THE GAS AND COAST THEM GIVE IT GAS THERE WAS A C…
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HAD MY 60,000 MILE SERVICE DONE ON MY 1999 RX300. THE WIFE DROVE IT WHEN I GOT HOME AND TOLD ME THE CAR WAS RUNNING SLUGGISH, DIDN'T ACCELERATE LIKE IT DID BEFORE I BROUGHT IT IN. I TOOK THE CAR OUT TO DRIVE IT AND FEEL WHAT SHE WAS TELLING ME AND NOTICED THAT WHEN I WOULD LET OFF THE GAS AND COAST THEM GIVE IT GAS THERE WAS A CLUNKING NOISE. I TOOK IT TO THE DEALER, THE MECHANIC HEARD THE NOISE AND SAID HE WASN'T SURE WHAT IT WAS. THE SERVICE PERSON SAID THAT I SHOULD JUST DRIVE IT NORMAL AND NOT TRY TO MAKE IT CLUNK AND IT SHOULD BE OK. IF IT KEPT DOING IT TO MAKE AN APPOINTMENT TO BRING IT BACK. CAR WILL BE OUT OF WARRANTY! IN 4 MONTHS. *LA
NHTSA ODI #10082354
80,600 miles · Apr 6, 2004
Engine And Engine Cooling
EXHAUST MANIFOLD CRACK. *LA
NHTSA ODI #10065652
Mileage unknown · Apr 9, 2003
Engine And Engine Cooling
I OWN A 1999 LEXUS RX300 AND HAVE HAD AN ENGINE SLUDGE PROBLEM WHICH WAS REPAIRED BY THE DEALER WITH THE VALVE SEAL REPLACEMENT BEING PERFORMED. ALSO HAD FRONT EXHAUST MANIFOLD AND FRONT DOWN PIPE FAILURE(CRACK) OCCURRING AT ABOUT 71,000 MILES. UNSURE AS TO ANY RELATIONSHIP BETWEEN THE TWO.*JB
NHTSA ODI #10014196
88,000 miles · Apr 6, 2003
Engine And Engine CoolingFuel System, GasolinePower Train
I OWN 1999 LEXUS RX300, SINCE FEBRUARY OF THE LAST YEAR, I HAD NUMEROUS PROBLEMS WITH THE CAR'S ENGINE (IT HAS SLUDGE), TRANSMISSION, EMISSION SYSTEM, AND OVER USE OF GAS PER MILE. FIRST PROBLEM STARTED DURING THE FIRST MONTH OF MY OWNERSHIP AND SINCE THAT TIME THE VEHICLE HAS SPENT WEEKS IN AUTO REPAIR SHOPS. LEXUS DEALER AND …
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I OWN 1999 LEXUS RX300, SINCE FEBRUARY OF THE LAST YEAR, I HAD NUMEROUS PROBLEMS WITH THE CAR'S ENGINE (IT HAS SLUDGE), TRANSMISSION, EMISSION SYSTEM, AND OVER USE OF GAS PER MILE. FIRST PROBLEM STARTED DURING THE FIRST MONTH OF MY OWNERSHIP AND SINCE THAT TIME THE VEHICLE HAS SPENT WEEKS IN AUTO REPAIR SHOPS. LEXUS DEALER AND OTHERS CHARGED ME LAVISH FEES BUT NEVER FIXED THE PROBLEMS AND LEXUS DEALERS EVEN NEVER ADMITTED THAT SERIOUS PROBLEMS EXISTED. *JB
NHTSA ODI #10014038
Mileage unknown · Oct 29, 2002
Engine And Engine Cooling
EXHAUST MANIFOLD ON RIGHT SIDE OF ENGINE CRACKED, WHICH RESULATED IN REPLACEMENT OF THE MANIFOLD AND 2 SENSOR AT OWNERS EXPENSE. THE PART CRACKED AT 71,000 MILES AND LEXUS WOULD NOT REIMBURSE REPAIR BECAUSE THE CAR WAS OUT OF WARRANTY. EXHAUST MANIFOLDS SHOULD NOT CRACK AT 71,000 MILES, IF EVER. DT
NHTSA ODI #769036
Mileage unknown · Jun 10, 2002
Engine And Engine CoolingSeat BeltsVehicle Speed Control
VEHICLE DID NOT START FOUR TIMES IN SIX WEEK PERIOD. BATTERY REPLACED TWICE. PROBLEM STILL EXIST. *TT
NHTSA ODI #566047
Mileage unknown · Apr 8, 2002
Engine And Engine Cooling
ENGINE FAILED DUE TO SLUDGE. TOOK TO ARBITRATION DID NOT WIN. VEHICLE OUT OF SERVICE FOR LAST 10 MONTHS. LEXUS DEALER AND CUSTOMER SERVICE CONTACTED OVER 50 TIMES. EVEN WITH NEW POLICY ENGINE STILL HAS NOT BEEN REPAIRED. LEXUS AND DEALER HAVE TREATED ME LIKE A VILLIAN. PIAD FOR VEHICLE THAT IS UNUSEABLE. *AK
NHTSA ODI #760398
Mileage unknown · Mar 5, 2002
Engine And Engine CoolingUnknown Or Other
ENGINE DESIGN IS FAULTY. WHILE DRIVING VEHICLE OIL BECOMES VERY HOT AND TURNS INTO SLUDGE. ENGINE CHECK LIGHT ILLUMINATES ON DASH CONTINUOUSLY. PLEASE PROVIDE ANY FURTHER INFORMATION. *AK
NHTSA ODI #8005011
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