Lexus SC430 :: When Drive On Freeway At Around 60 - 70mph Car Decelerates
I've own my Lexus sc430 for a couple of years now and I've been experiencing some problems. Its a 2002 sc430 with 77k miles. When I drive on the freeway at around 60-70mph the car decelerates. Everything else is working. The car feels like I let off the pedal, but I really didn't. I went to the my mechanic and try to see if any codes came up but nothing. Also hooked it up to the scanner while driving and when the problem happens still no codes. the mechanic cleaned the MAF sensor and throttle body. He said he thinks it might be fuel filter problem. I read that the Throttle Position Sensor could be the problem, but when I told my mechanic he said he doesn't think that it could be the problem or else it would throw a code. The mechanic also thought that it could be that the tires are low on air so he filled them up and drove home and had no problems. but I feel its still might happen. a
View 14 RepliesLexus SC430 :: On Start And Put In Drive Transmission Slip For About 5 To 10 Seconds
I have an interesting automatic transmission problem. Hot or cold makes NO difference. When the car is started, put in reverse it will work perfectly 100% of the time. When the car is started, put in Drive the transmission will slip for about 5-10 seconds before working perfectly. When the car is started, if you wait 3-5 minutes, then put it in Drive it will work perfectly.
View 13 RepliesLexus SC430 :: 5 Speed Vs 6 Speed - Difference In Drive?
I am in search of a SC430. I know that from 02-05 it has 5 speed trans. 06 and newer has 6 speed.
Is there a big different in the drive? I just want to justify the extra cost for the 06 and newer.
Lexus SC430 :: How To Replace The ECM In 02
I need to replace the ECM in an 02 SC430 my question is.......?
If i get my hands on a used one will I still have to Reflash the ECM or will the car start run and drive plug and play?
Lexus SC430 :: Antenna Goes All The Way Up?
New owner of a 2007 and 1st post. My antenna goes all the way up and then one of the sections retreats.
View 8 RepliesLexus SC430 :: 2 - 3 Second Delay To Take Off
The lexus sc430 is nice but when I floor it , there is a 2-3 second delay until she kicks down and really takes off. Someone said there is actually an adjustment on the transmission to eliminate this delay. Never heard of such a thing.
View 3 RepliesLexus SC430 :: Convertible Top Won't Go Down?
Just bought my sc and the top won't go down,when I press the button nothing happens no blinking lights or noise.if I open the windows and press the close button the Windows go up,but when I press the down button nothing happens.
I have the trunk cover close and I checked all the fuses in the trunk but they all seem fine nothing blown that I can see.i disconnected the battery overnight and still nothing. I also checked in the glove box and the button is pushed in like it is suppose to be.
Lexus SC430 :: Turn Off Antenna When CD Is On?
Is it possible to turn off antenna when CD is on?
View 7 RepliesLexus SC430 :: AC Started Blowing Hot Air
A few months my AC starting blowing hot air. When I was at the dealer, they claimed the compressor was bad and wanted over a 1000 to replace. I looked online when I was there and said the new denso compressor was about 300 online. They wanted double. I just left and didn't worry about it since it was about winter then. Now I need to get it fixed.
A guy noticed the other day when I cut the AC button on, the clutch engaged and cut back off. He didn't have time to fully check it that day and wants me to bring back if I can another day.
I did some searching on this board, but haven't seen compressor issues with the SC430. I have a 94 ES300 and a 2004 RX330 and neither have had compressor issues. So I am shocked at this anyway.
I bought a relay, but that did not work. I just read on the LS forum that a lot of people have had problems with the AC pressure switch.
I understand that switch could prevent the compressor from coming on when the switch goes bad. Do we have that switch on the 06 SC430? If so, where is it? I can't find a part number listed in All data. I would love to check it before spending a ton of money on compressor replacement.
By the way, I have plenty of refrigerant. They checked that at the dealer and added some then. And I did AC diagnostics and show no codes.
Lexus SC430 :: Squeaking When Windows Go Down And Up
What's the best thing to put where the glass meets the rubber to stop squeaking when windows go down and up?
View 7 RepliesLexus SC430 :: 2004 - Convertible Top Does Not Go Up Or Down
The top of my 2004 SC430 got stuck halfway open and I put it up manually. Now it does not work at all. The dealer told me it would cost $8,000 to fix! I love this car. How I can get the top fixed without going bankrupt?
View 3 RepliesLexus SC430 :: Shaking Occur Anywhere Between 55 To 70 Mph
I thought I'd post an update about my front end shakes that I've been working on eliminating since I bought my SC. They used to occur anywhere between 55-70 mph. The remaining shake occurs around 65-70 mph. I should mention that when I added H&R 25mm wheel spacers in the back and 20mm spacers in the front. I had the shakes both before and after adding the spacers though. The following list is what I've done over the past couple of years to try to eliminate my shakes:
1) New tires - Bridgestone Potenza's, nice tires, better ride.
2) Replacement, chrome, OEM wheels. Look nice.
3) Road force balancing.
4) Steering rack was replaced with a rebuilt unit because the old one was leaking. Came with inner tie rods and I put on new outer tie rods at the same time. No change in shaking.
5) Daizen polyurethane lower control arm #2 bushings.
6) Daizen upper control arm and lower control arm bushings.
7) Daizen steering rack polyurethane bushings. Still not perfect, but this made a huge difference.
I did the steering rack bushings today. I've really, really developed a dislike for Lexus steering bushings!
Some background: I had issues with my '01 LS430 steering bushings @ 85K miles. My only choice was to replace them with OEM. I should have replaced them at 50K. They were really, really awful. The interesting thing, though, is that they physically looked pretty good. The result is amazing; nice and tight.
The bushing design of the SC is essentially the same as the LS. But luckily we have more choices with our steering rack bushings than the LS crowd. I began to hang around the GS guys because their front end is quite similar. The '98-'05 GS430 uses the same steering rack and bushings as our SC. Sewell sells both OEM and an aftermarket polyurethane solution for around $30 complete.
At this point my SC tracks very, very well. The polyurethane suspension bushings probably add a bit of harshness to my ride but I don't find it objectionable and it's a reasonable tradeoff for the added precision in the front end. I don't believe that the polyurethane steering rack bushings have any tradeoffs at all. The remaining shake that I'm experiencing is pretty darn subtle but I'm not done. I'm going to rotate the tires tomorrow and see if anything changes. I'm also looking at toe in. My front tire wear tells me that I don't have enough. I've been running factory settings but I'm going to experiment with a bit more toe due to the additional road forces created by the wheel spacers. I don't give up easily!
Lexus SC430 :: Car Acts If It Is Off When Put The Key In To Unlock
I insert the key, turn it all the way to ignition, car starts, dash is lit up, everything seems to be working. Once I let the key snap back from IGN to anything else, the engine continues to run, but the car acts as if it is off (dash completely dead, wont come out of park).
If I remote start the vehicle using my luxlink (which I've had zero problems with since it's install about 4 years ago), car starts fine, dash lights up, everything is in working order. However, I have to put the key in to unlock the steering wheel, and once I depress the brake, again, car acts as though it's off (no dash/radio/nav, anything electrical, won't come out of park), but the engine continues to run.
Lexus SC430 :: Dash Lights Become Dim At Day
My dash lights are very dim during daylight and marginally bright at night. This is for a 2002 Lexus SC430.
View 1 RepliesLexus SC430 :: 2003 - Vibration At Around 55 - 68 Mph
I just purchased my 2003 sc it has 78000 miles on it and I am not sure if im running rf's in the rear and non rf's in the front. I know the ones in the rear are very different looking they are s800 bct's , and the front they are continentals. Anyway how can i tell between a run flat tire and a non run flat tire??
Do they look different in appearance? All i know is that sucker vibrates damn good at around 55-68 mph. should i get a wheel balance?There is no spare in the trunk and the tires look brand new.
Lexus SC430 :: 2002 - Lag On Throttle
just bought a 2002 lexus sc430 the car is nice but i have been reading in regards to the throttle lag. Any resolution for this. I've read that the apexi or blitz trottle control is an option to work with the lag.
View 14 RepliesLexus SC430 :: No Start Not Even A Click
I am stationed in Europe at the moment and my wife has been driving my car.
She last drove it a week ago and when she got in to drive last night it would not start - Not even a "click". Interior lights worked, radio etc.
Could be the battery of course with not enough voltage threshold to even engage starter solenoid.
But I was looking for other things she could check before I come back in 3 weeks. I will deal with a battery replacement then if required.
She confirmed car is in "park".
Lexus SC430 :: Passenger Side DRL Went Out
On my 2006 SC430 the DRL's come on with the low beam lights.I assume this is standard across all second Gen SC430's. My issue is the passenger side DRL went out. The high beams worked fine, but only the drivers side DRL would work when the headlights are on (no DRL's come on with the headlights off).
So, I went to AutoZone and picked up replacement bulbs. I just put them in and the exact same thing is happening. Brights work fine, DRL only works on the drivers side. Where to even look now that I have replaced the bulbs.
Lexus SC430 :: Lowering The Ride?
Going to lower the SC tomorrow with some pbm coilovers, thinking 1.5 inches. Wondering if I can go lower without having issues. Wondering how much other members have lowered there's, and how it rides
View 14 Replies