Lexus SC430 :: 2002 - Shaking Slightly When Idling At Traffic Lights
Sep 23, 2011
My high mileage 2002 SC430 seems to shake very slightly when I the car is idling at traffic lights (both when it is warm and when it is cold). The shaking is very very slight but it is noticeable. The shaking does not occur if the air conditioning is running or when the car is moving. The check engine light is not on.
The previous owner did mention that the alternator may need to be replaced eventually, but I don't know if this could be related.
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I hate trying to describe noises. When idling at lights I hear AC noise. Not the air coming through the vent. It's something else. Is that normal? Previous cars were silent when new, wheezing didn't happen until older.
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My brake light and ABS lights appeared today on my '02 SC430. What this might mean and the solution?
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My check engine light came on.. so I took it to express tires.. And they said that they need to replace my vacuum hoses cause it busted ... well when I saw the guy used the obd checker thing.. after checking the codes.. i saw that when u turned on the engine.. the vsc on and vcs off lights came on..
So I figured after he fixed the problem.. it will go off.. well after he got done.. fixing the problem.. I drove away.. after bout like 2min.. i had to turn around cause the vsc on and vsc off came on.. and I told the guy to check.. And he used his checker.. and there was no problem.. and the "check engine" light is not on anymore.. just the vsc on and vsc off!!
Could the checker.. messed it up??? the vsc off button.. only works when the key is turned on.. " not when the engine started but right before it.. when the power comes on" so the button is working correctly.. it just comes on.. when i start driving the car...
And no they did not check my tire pressure or do anything to the tires or the wheels.. it just turned on.. when he inserted the obd thing to check..
And yes I read the [URL] .....
Is it dangerous to be driving with the vsc and vsc off light on??
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Where the license plate lights get thir power from? I have a 2002 SC430 and the plug is just dangling. It goes behind the plate and then if I look under the car, it is just there by the bumper and I cannot find a connector that it can reach.
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Just picked up a pretty nice 2002 sc430 today. On the drive home I realized all the dash backLights are not lighting up. However the The radio and climate control unit do have a dim backlight working but is stuck at one level of illumination.
Like most cars the all dash lights should be very bright during the day and when you turn on the headlights they should all Dim down. ..... Not on this SC.
Makes no difference what position the headlight switch is in....Nothing changes or lights up
and
The little Dimmer does nothing either when turned all the way one way or the other.
Fuses? I am not sure what to try.
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My 4 cylinder Tacoma vibrates a lot when it is idling, especially sitting in "drive" at traffic lights. My regular mechanic has tried various things to remedy it but none has really worked. He suggested the valves may need to be adjusted. Is this plausible? Or is he off-base? And is it really expensive?
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2002 sc430 73k miles.
I have a slight steering wobble (not really shaking/vibration) at higher speeds and only when I turn the wheel to the left or right a little (maybe a 1/2 inch). If I am driving straight down the highway it is smooth at any speed 40-90mph no issues. If I move the wheel to the left or right I feel the the wobble in the wheel. If I go back and forth a little, constantly, with the wheel it continuously wobbles.
I had recently addressed some other vibration issues by installing new LCA #2, continental DWS tires, and had the front end aligned (front -.3L and -.5R for camber, Rear -1L and -1R camber, front and rear toe set to -.07, if I recall). I couldn't really remember if I felt this wobble before because the tires and LCA's needed to be done badly. I am not sure if I should replace the struts either since ride feels good.
My steering feels darn good and responsive at low speeds and does not wobble when turning the wheel slightly. I have purchased new oem steering rack bushings but have not installed them yet (purchased as a preventive maintenance part when i had some free time, before I discovered this issue).
I have read a few threads about alignment of the steering rack causing issues if it is not perfectly centered. Not sure if that would cause anything like this. Love driving the car but the wobble is rather annoying when i turn the wheel a little to change lanes at 75mph.
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When I come to either a hard stop or apply my brakes hard while on the highway I can feel a slight shift of the seat forward (as if it is tilting forward) and then when I accelerate again I feel it rock back into place. I only weigh about 150lbs so I doubt it has to do with that. It's minimal and I think it started at around 50K miles (so, just a couple thousand miles ago).
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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!
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When I go out in the morning to my c430 and start to reverse always on full lock either right or left the wheels seem to slip or slightly spin - it only happens for a second but it's strange and doesn't always happen.
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After getting rid of my front end shaking problems with some new tires the installer blamed the directional tires.
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So i replaced everything, Crack pipe, thermostat, greentop CTS, water pump... still getting 1 or 1.5 bars past the vertical in traffic after about 10 minutes...
The fans work... atleast they are both on when i shut off the car...
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I was slightly overheating in traffic, watching the gauge creep up a little. So i bought a new fan, swapped it in this morning, and still no Big Fan.
Fuses on top of the battery are all good. Does this mean my FCM is gone?
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My 2007 with 73k has started to idle rough at traffic lights. Not horrible, but a noticeable vibration. Rpm's are around 500. If I put it in neutral, rmps go up to about 800 and idle gets better. What could cause a rough idle like this?
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I am having issues that i think are related to the transmission.
When I am stopped and the car is in drive it starts to vibrate significantly however once i start moving again the vibrations stop.
Switching to neutral or reverse also causes the vibrations to stop.
I am thinking that somehow the transmission is not fully disengaging when the break is pressed like it is supposed to but i may be way off on this.
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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.
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I have 2002 SC430 with an annoying vibration through the seat/chassis at 60mph but she's smooth at 55 and slower and at 65+ mph ? Things I have tried so far ...
wheel balance
wheel alignment
2 rims rerolled that were out of round
bushes and suspension all checked
moved wheel positions front to back etc
Thinking now maybe driveshaft or uni joints ? or new tires but that's an expensive exercise !!
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My dash lights are very dim during daylight and marginally bright at night. This is for a 2002 Lexus SC430.
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Noticed the antenna did not go all the way down. It will also not go up. When I turn the radio off the motor grinds for few seconds but the antenna does not go all the way down. Mast problems? Any links how to fix it?
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On my 2002 SC with 51K miles, the front end is squeaking. BTW, shocks are good...
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