Engine Cooling System Problems of Lexus RX300

2002 Lexus Rx300 85000 miles the steel lines running to the transmission oil cooler started to leak. Upon inspection they were found to be rusted through. The line must be in a bad place and receive road spray.

See all problems of the 2002 Lexus RX300 🔎.

When I run the air conditioning system, water seeps from under the floor board on the passenger side, sometimes up to 3/4 inch. I have to use a vacuum and or a cup to get it out. It is damaging the body. Please advise.

See all problems of the 1999 Lexus RX300 🔎.

Engine design fault in the cooling channels to the cylinder head of the vehicle were made too small resulting in excessives engine operating temperatures causing frying of the engine oil turning it to sludge, the sludge clogs the engine ports eventually causing engine failure. Nlm.

Engine design fault in the cooling channels to the cylinder head of the vehicle were made too small resulting in excessives engine operating temperatures causing frying of the engine oil turning it to sludge, the sludge clogs the engine ports eventually causing engine failure. Nlm.

Contact person: kevin ezratty service manger, bob baker Lexus el cajon,CA 92020 (619) 440 5398 car overheats and stalls when towing a 2500 lb r/v trailer Rx300 specs 3500lb. When towing in mountain terrain with ambient temperature around 100 degrees and going up hill, the car temp indicator will approach the red zone and will lose all power and stall. There is no warning or time to pull off the road, traffic mostly trucks makes it very scary and dangerous. The transmission was replaced and the car driven 1000 miles and it happened again, with no place to pull off. I returned the car to dealer, they have no idea if they are looking for a mechanical or electrical problem, ther is no history of any Lexus Rx300 with this type of failure. Their suggestions are don't drive in the mountains, don't drive in the desert, don't use the air conditioner, don't tow the r/v trailer, don't drive with any wind. They also requested that they be allowed to take my personal property, the r/v trailer and tow it around the mountains and desert and see if they can make it fail again. I asked if anyone in the facility had ever pulled a trailer, the answer was no one, so I declined. (I have $55,000 invested) I purchased this vehicle for the sole purpose of towing this trailer , now they tell me that just because the car is certified to tow 3500 lbs doesn't mean that it can. At this time we are at a stand still, they can't repair the car and I travel a lot and don't feel safe driving it. Without the trailer it seems to be fine, it is equipped with the trailer towing package. The transmission oil temp indicator does not light up, so I think the engine is becoming hot and shutting the car down, see page 208 owners manual. Your help and suggestions are appreciated. Thank you.