Hello! My name is Jake and I have an 04 RX330 with 230,000 miles on it. Not certain on the history of it but I have gotten it with no heat and an overheating problem(EDIT: previous owners said it has overheated on them). I immediately knocked out the easy stuff, checked coolant levels, verified fans were working. So I end up doing serious work that it needed: waterpump, timing belt, power steering pump, upper/lower intake gaskets, thermostat(THM 117-$11.32 at napa), valve cover gaskets, spark plugs. I end up finding smoke swirling out of a crack in the radiator while the car was idling for an hour during a fuel injector decarbonizing process. I end up replacing the radiator as well as the fan motors with the relay because the fans wouldn't turn on. I ended up using a power probe straight to the old fan motors and only fan #2 worked. I end up putting it all together-bled all of the air out of the cooling system with an airlift evacuation tool-and this thing is still overheating! Today I pulled it in and put the scantool on it-temp reads 244 degrees, so it's up there. I take a laser thermometer gun and the passenger-side (or upper hose) of the radiator read 183 degrees give or take and the part of the intake that the sensor screws into was around the same. So I thought it's only a $20 sensor, and replaced it-also considering it had a previous P0117 code(engine coolant temperature circuit low input). I know when the DTC is aiming at the input part of a circuit, it's talking about something with the sensor. I thought this would do it, BUT the car still overheats via gauge. Good news was I had heat, so I'd blast it when it starts climbing up and it'd slowly go down. I'm really stumped now, because I know the heater core acts as a mini radiator, but it doesn't make sense that the heatercore cools the engine down but not the fans and radiator being fully functional. The upper heater hose is piping hot with pressure but the lower hose is room temperature with pressure, I verified by squeezing the hoses. Is the thermostat defective? I installed it with the wobbler pin positioned at the top via installation instructions. I feel like I might run a compression test tomorrow to check the head gaskets, but I feel like I'm missing another sensor or something-I'm a freshman in college so anyone with experience I'd greatly appreciate it!
My guess would be either the first gen rx300 or the most recent gen rx350 because they have the most ground clearance. Not sure how they all compare with locking diffs, gearing, wheel articulation, low end torque, etc since I only own the first gen.
Second question: is the RX a lot worse off road than the LX and GX or are they close?
I got (in Europe) US 2003 1st gen Rx300.
About a year ago i have managed to change stereo from us (no navi) to UK version (with navi) and all was fine (bit os soldering was needed as plugs on both radios are different.
However now my radio sometimes has no sound for few hours/days and after that plays fine for few hours/days.
When I loose audio, under sound control I am missing MID range control and although i can see Bass/Treble + Left/Right & Front/Back controls they don't work - no level visible.
From what I understand it is an amplifier issue. I already got a new -second hand - one, but from UK market.
Now, I can not find info what is the difference between:
86100-48050 - US version and 86100-48040 UK version
Also, (before I get to my amplifier) would any of you have pictures of sockets/plugs in US amplifier?
I could make sure my plugs will fit into UK amplifier before I unscrew everything.
I attached pictures of UK amplifier
6 months ago I purchased a Certified Pre Owned LX 570 and have been loving it so far. However, yesterday the sound suddenly cut off while I was driving. Did some reading and found that these Mark Levinson amplifiers have been acting up since 2001 vehicles. I took the vehicle to the dealer and confirmed that the issue was the amplifier and enquired as to why haven't Lexus done anything about this issue which seems to be over 16 years old. I spoke to someone and they suggested there may be ground for a class action lawsuit based on the number of vehicles that have had this issue. I am curious as to how many have had this problem to see if there is indeed a systematic issue or if they are isolated incidents.
Look forward to hearing back.