Lexus SC430 :: 2003 - Vibration At Around 55 - 68 Mph
Nov 10, 2010
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.
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Car has this vibration for the first mile or so. After that it smooths out to nothing. don't hear anything on corners, no metal on metal ( I know they are pressed in bearings sealed).
New rubber, fresh alignment, balanced wheels. Anyway, I can't tell what wheel it is coming from. What would cause a good vibration for a short period of time? Is this the start of wheel bearings? If so, how do you figure out what corner?
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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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I took my car to a mechanic the other day to get the spark plugs change. Then I notice when I turn my car on my seats starts to vibrate when in idle. Is this normal cuz the mechanic says this is normal and that every car vibrates just a little. I read some where it could be the mounts but someone on here told me they not because it doesn't shake my seats just vibrates if I seat there I can feel the seats vibrating on and off its not crazy bad vibrate. It's a minor vibration. I was hoping for no vibration what so ever like sitting in on my leather couch in my living room. Mine is a old model 2002.
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Noticed a slight vibration from my engine at idle. Nothing too overbearing but just had a concern. How much should I expect if the engine mounts need replacement? Parts? Labor?
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1) Where to find a driver's lower fuse panel in cabin fuse cover/kick space left side, near brake?
2) I have a slight intermittent magic fingers kind of idle. I changed spark plugs, no diff, have been using Techron, timing belt replaced, etc.
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I have noticed that when pressing on the brakes at 50 MPH and higher my steering wheel starts vibrating and it feels like the car is being tugged a little to the left. This started a couple of weeks ago, what might be causing this?
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Here's the deal:
1. My 2002 SC430 with 23,000 miles on it is making a low rubbing noise when slowing down, with a slight vibration, not severe enough, but it is annoying and frankly surprising on this car. The dealer tells me it's because the brakes have "glaze" on them, and short of a new brake job, you can jam on the brakes to clear or loosen some of this and reduce the noise. ( I live in the desert so I'm sure I could find a deserted stretch or road for this craziness...) The dealer reports the brakes have 70 - 80 percent life on them and I don't need a brake job.
2. Power steering. I thought this particular car was just hard to steer, but even the tech at the dealer commented it's like I have no power steering. I test drove two other cars, and the steering is markedly lighter on the other two SC430's I drove. (2002 and 2005) Dealer can't seem to find an explanation, but I have to drive this car with two hands around town... I know this is not the way this car was intended to feel.
I don't believe the car changed that much from the 2002 model so as to affect the steering. BTW, I'm using stock tires, not run flat, 4 months old. And the steering is stiff at idle anyway, regardless of tires. The first SC I drove, which sealed the decision to buy one, was so quiet I didn't know the engine was running, easy to steer, and smooth.
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I have a 2003 430 with 110K miles. Car would not start this morning. It cranks so it appears the battery and starter are fine. Battery was changed last winter. I had the timing belt changed at 80k. Its been a great car with very little problems.
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My 2003 sc 430 navigation works, but no voice. I have made sure voice is on in set up. Reset everything to default... nothing works... I want to upgrade to latest 13.1 navigation, but want to figure our voice issue first...
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About month ago, the CHECK ENGINE, VSC, and VSC OFF lights came on in the dash of my '03 SC430 (~175k miles). Took it to the dealer and they read the codes; indicating a bad O2 sensor. They replaced it, and the lights went off. A few days later, the lights came back on. The lights remained ON until this past weekend.
On Sunday, i went to start the car in the morning and the thing wouldn't turn over. Turns out the battery was dead. The label indicated it was 5yrs old. So i bought a new battery. After installation, i noticed the error lights were no longer illuminated on the dash, but just figured it was due to the fact that the battery was disconnected during installation. But after driving it extensively since then, the lights have remained off.
Something else i've noticed since installing the new battery is the lack of the "rotten egg" smell from the exhaust. Before the change, i noticed a significant decrease in acceleration and the emissions smelled very bad. But for the past few days, i've noticed a dramatic increase in power and cleaner smelling emissions. Not sure if they're related...
Could the check engine lights have been the result of my battery dying? I'm not sure why they haven't come back on since the battery replacement. Nor a reason why i'm noticing improved performance and better smelling emissions.
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Neither key fob will work (yes batteries are good). We use both keys everyday, but I sent my daughter to store and she calls me and says the key won't open the door using the Fob or manually. I bring her my key and I can't get in the car either. When you press any button on either Fob absolutely nothing happens except the lil red light on the Fob blinks.
When using the key manually turning to the left does nothing, turning to the right causes a click that you can hear and feel but the door is still locked. Nothing has changed. The only thing different that she did was when she got out she hit the lock button on the door instead of using the Fob once she was out. ( she's not use to using Fob because her 93 SC400 Fobs don't work). So what happened here, what broke? Or did somehow she activate some Anti-Theft system or something? What do I need to do?
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2003 with about 140k miles, radiator was replaced a couple years back, recently replaced timing belt (#2) and some valve cover gaskets in advance of a road trip.
On the road trip, used no cooling air, occasionally used heat at night with the roof down. At one point, I thought I heard my engine louder than normal, but decided it was actually machinery nearby.
The next morning, after only about 1 hour of leisurely driving through a civil war park for about an hour, I confirmed that in fact it was my vehicle making the noise.
It was fairly frequent, and basically sounds and feels (hand on air filter) like the blower kicking on, as if to cool the car off.
But the air temp was cool, the car temp was solid and cool, so there wasn't a good reason for this to be happening.
Because I had just had the timing belt & such done, I stopped at a dealer. The engine light came on as I pulled in.
They indicated that they saw a MAF sensor failure, and that while it needed to be replaced, it wasn't a problem to finish my road trip. They indicated the check engine light was related and also ok to drive with. They then lost a lot of credibility when they tried to ask me if perhaps the AM radio was the noise I was hearing...
Despite that, I continued on (had to be somewhere and they said it was ok to drive). The engine light actually went off the next time I filled up, so I decided perhaps that was actually a gas cap pressure issue (saw that once before in my ~6 years of driving the car).
Back at my home Toyota shop, they confirmed the MAF replacement need, and have also suggested spark plugs (fair enough).
But re: the air, they don't believe it sounds 'wrong'. I agree with that- it sounds 'right', as in when the blower kicks on, and I vaguely recall that it was something I heard back when my radiator actually rusted out / failed.
My issue is that it seems to be happening MUCH more frequently than normal.
So while I don't recall hearing it at all over the past couple years or only on very rare occasions under load, or when the radiator failed, it seems to be almost routine now, where at a given stop light (even in just a few miles of driving in town at low speeds), I'll hear the extra noise.
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I like the sound of my ML system in my 2003 SC430, but I hate the lack of features...
Specifically iPod integration, Bluetooth hands-free and Sat radio. Is there any way to swap out my stock Mark Levinson head unit with one that would do the above?
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The temperature gauge continues to go above the half way mark. Yesterday it was 88 here and I ran the a.c.. The gauge got a little over the second white mark from the top. I don't know if this is normal, I have taken it to a mechanic twice and he said I had nothing to worry about.
I am just used to the gauge staying right in the middle, and this one does not do that. The fan that cools the engine is almost always on as well. This is another thing that leads me to think there is a problem.
Would you mind telling me if your 430 gauge moves around like mine? I have to get something done before I hurt the engine?
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i have a 03sc430 with 144,000 on the clock and the rear of the car shakes around 60-70 mph ive had all tires road forced balanced nothing wrong with tires rides fine until i get to 60 mph i heard a click noise once when the car was parked in a driveway on an angle.
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I put brand new pads on my 2003 sc430 about 6 months ago, and have noticed this rubbing sound coming from all 4 tires. It is very noticeable and annoying. I'm wondering if I should have put brand new rotors on the car while I was changing the pads. I did not here this noise prior to changing the pads.
I'm attaching a link of a video [URL] .....
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I just got it and the gauge is showing a little hot. I took it in they found nothing. The fans runs almost all of the time. It even started running when I was sitting in my driveway with it in park (it was about 55 degrees outside at the time). I also hear some grumbling noise in the dash on the drivers side. It sounds like something is trying to work (the radio is off and it still makes this sound).
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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?
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New owner of a 2007 and 1st post. My antenna goes all the way up and then one of the sections retreats.
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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.
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