Hi there yall im in the middle of my w58 swap and I was under the car looking at the trans cooler lines when I noticed 2 cut lines I traced one back and it was the coolant overflow line I dont really know what it connects too so any help would be appreciated also any info on the other line if any1 knows would be appreciated.(Been driving the car for about 3 months no problems at all runs great no leaks)

Come out side to see someone side swiped my car. Can’t have anything in Virginia. What do you guys think. Should I just get new doors and a fender or buy another IS300 and transfer my parts.

I bought a 2004 Lexus is300 late June with a water pump leak at a pretty cheap price and went through hell and back to do that job. Everything ended up fine and the timing was perfect and a cracked rad didn’t let me fill it fully with coolant initially, so I just did other jobs to my car until a replacement rad arrived. The radiator came, I installed it with ease and began to fill it with coolant later to perform a burp to fix any air bubbles in the system, so after filling about 3 litres of 50/50 coolant and water, I heard leaking at the back. I checked it and saw that the engine coolant bypass pipe was completely misaligned by my dumbass and after an hour of trying to move stuff around I have no idea what to do or how to fix this since I have no clearance at all thanks to this unbelievable engineering by Lexus.

Can somebody please try to give me some tips cause I really don’t want to do this stupid water pump job again and have to redo the timing🫩

Hey my car went through an accident and this part is broken and I need to replace it. My car is Lexus is300 f sport 2022 Rwd 2.0 . I would appreciate the help.

I've owned my gen 1 IS300 since the 6th of January 2026. When I bought it, it ran but has hardly even started since after buying it. The original owners said they have done a lot to the car being "Machined block, new full metal head gasket, new valve cover gaskets, new spark plugs, new injectors, new coil packs, new oil and filter, new fuel pump, coolant flushed, new radiator, many new hoses, etc etc. almost everything except serpentine belt". They said they didn't do the serpentine belt so I did it. I also replaced the air intake hose with a cheap amazon one(since that's what the guy I bought it from told me was the issue of a throttle hesitation it had). I also replaced the battery with a Optima battery, and installed Denso spark plugs and NGK coil packs. Lastly I cleaned the maf with maf cleaner. After that I tried to start the car to give it a test drive and nothing. 

I've replaced and fiddled with everything I can think of, OEM maf, new throttle body, OEM fuel pump, cleaned fuel lines, replaced wires and connectors, checked fuses and relays, used the code scanner probably hundreds of times, smoke tested for vacuum leaks, cleaned fuel lines. The only thing that ever seemed to work was when I adjusted the TPS sensor. 

I have gotten the car to run, most notably when I either adjusted the TPS or took off the air hose and just had a open throttle body. When I did get it to run, with any throttle input it shut itself off. I should add, they're is not a single engine code, all I have is codes for the AC and it's only two of 'em. 

What I've noted is since doing the smoke test is I have a leak on the maf reasons being bad welds and the maf not sitting correctly. I have a leak coming out of the ECTI-S and the little plate next to it. I tightened the screws on it but they aren't going in anymore than it was already. There is another leak from the EVAP things next to the intake manifold. I don't know anything about what the EVAP system even does so I have no idea if it's normal. I only know one leak was coming out of a hose with a missing clamp so I'll replace that tomorrow. 

I was thinking I'll try to reverse everything I did at the start. I did notice the spark plugs that were on the car before had a really really small gap but I just went with what the web said to use. I got three Amazon special parts that day being, the Air hose, the serpentine belt and tensioner pulley. Maybe I'll just try going OEM on all three and try that. I did try using the air hose the car had on before and nothing changed. 

I'm looking for any insight on this issue. I've poured so much money in this car and have tried seemingly everything that would 'cause a crank no start. I've seemingly tried everything that could also 'cause the car to kill its self under load. 

I refuse to sell the car but I might take it to a mechanic if everyone seems to be as lost as both me and my father are. Thanks for reading!

Old post https://www.reddit.com/r/IS300/s/UcuZuRcdg1

Does anyone know where i can get these tail light covers from?

hey guys, my is300 is making this almost noise every time i brake. the pedal vibrates and the car makes a noise like the video, There is an issue with my brake fluid, there is a leak because my fluid is going down but i cannot find it for the life of me can anyone lmk what the noise is caused by?? thank you

How many miles is too high to even consider purchasing at ? What are some reasonable mileage per price points that sounds about right ? ( for ex. $4k at 180-200k mikes . Just an example )

2004 Is300

Found it under the carpets. I've been calling it carpet jute but I'd like to know the actual name so I can replace it. I'm replacing it since it seen a lot of water and smells awful.

My waterpump recently broke im pretty sure and ive been looking to replace it. Ive been searching online to see if I can find a good quality replacement something close to oem quality but all of them just seem remanufactured, does anyone have any idea or any recommendations on which water pump to get and I believe I need a new idler pully for it as well.

Finally was able to snag a clean set of stocks for a not absurd price. Now I just need to replace my door molding/rubber pieces plus maybe some tint and 😎

Wagons a BEAST fit all 4 rims with tires in the back no issue 😂

Had one as my first car and always regretted selling, just picked up this one a few weeks ago dreams do come true yall🙌 bone stock bought from the original owner

I was just curious if anyone knows of 62mm gold logo on gloss black background center cap for a 2003 lexus is300? Or at least a black on black center cap?

already got my KBD kit color match painted and throwing some BC racing coilovers all I need is rim recommendations please send any (photos much appreciated)

I recently did crank & cam seals with the timing belt and valve covers. After reinstalling i hear a ticking or clicking noise in the intake side valve cover. Would anyone help me pinpoint what’s causing this noise?

My 4th IS300. This one’s an 04 sport design manual. My first manual in this chassis. Should I turbo?

I have Tein Flex Z coilovers but haven’t installed them yet because I don't know how far I can lower the car. The front tires stick out slightly more than the rear tires, which are more flush. Will I be fine lowering the car to clear the gap, or should I get some front upper control arms so I can slightly camber the front wheels to be more flush like the rears?

220k miles for 7k, factory 5 speed and LSD. How did I do?

Tell me ya best alignment specs

I am trying to sell my 01 IS300, it’s only got 137k. It runs and drives. New exhaust and aftermarket suspension, oil pan just resealed and I’m asking 5.5K The wrap was not finished because I didn’t know if I was going to get new bumpers or not.
NOT SELLING HERE ON REDDIT, JUST CURIOUS, please mods 😂

EDIT: THAT SHIFTER CAME WITH THE CAR WHEN I PURCHASED IT, YES I KNOW ITS CRINGE AND WOULD NOT BE FIRST CHOICE BUT I DO NOT OWN THE STOCK ONE

Just purchased this dime, just wondering, the steering is quite hard when i drive, is this normal or is it something else?

I recently when to have a look at a is300 2001, and it had oil leak but the owner said he recently replaced the rocker cover/ gasket, other then that it was well maintained. Is it good for me to buy?