Lexus SC430 :: On Start-up Thump / Whirring And Will Not Turn Over
SC430 with 104k miles on it
Went to start her up today. As I began to turn it over--nearly immediately--I heard what can only be described as a thump followed by whirring. (I'd like to believe the thump was related but cannot be certain). Tried to start again, only very briefly, and all I could hear is that "whirring". It will not turn over and I'm hoping that neither attempt damaged anything.
If I had to guess, I'd say the timing belt snapped immediately as the starter was beginning to turn over the engine. Is there a relatively quick way to diagnosis this without potentially damaging the engine any further? An access port/hole or cover I can see through or remove to determine if the belt is snapped? What else could it be? Starter solenoid failure? That would certainly be easier to diagnose.
Lexus SC430 :: 2002 - Whirring / Fan Sound Was Audible In Trunk
So, last night I was driving with radio off and a "whirring/fan" sound was audible in the rear of my 2002 SC430 - a sound that I have never heard. The sound seemed to resonate from the driver side, access panel (which I believe holds fuses and other systems for roof). After the vehicle was stopped and restarted the sound continued. Now today, I insert the key into the ignition - no sound; turn to accessory - sound is audible; started vehicle and did not hear sound. Second time I repeated and sound was heard; started and did not hear sound, Third time I repeated and no sound heard in accessory start position. What the heck is this? Any diagram of the trunk and what components are housed in the center bay? Does this vehicle have any auto-leveling function that activates?
View 13 RepliesPrius (2010-12) :: Sudden Whirring Sound From Rear And Accelerator Delay
I have a strange issue that just started happening. A whirring sound comes from the vent in the back seat I believe which sounds like escaping Air. Not like the last 2 years I've owned it. At the same time I noticed that the accelerator now takes a second to engage after I hit the pedal from a stop every time. Furthermore the engine seems to be over revving, as if engine braking. I've restarted the car a few times. I've checked all the fluid levels.
View 7 RepliesLexus SC430 :: Initial Idle RPM At Start Up
When starting your SC on let's say a day where the temperature is 35 - 55 degrees, what is your initial idle RPM?
Next, how long does it take to settle down to a lower RPM and what is lower RPM when the car is still in Park?
Lastly, can tapping the gas pedal after initial start-up bring the idle RPM down while the car is in Park?
Lexus SC430 :: Rough Idle With AC Or Headlamps On?
Idle is good in gear without load but if i turn on the AC or the headlamps the idle speed increases slightly but is not as smooth ...very weird...
View 7 RepliesLexus SC430 :: Intermittent Rough Idle
I have done hours of searching about the rough idle on the SC430. What I haven't been able to find is any information about an intermittent rough idle. I have cleaned my MAF sensor twice.
I am having my mechanic replace the radiator tomorrow because of a leak and he is also replacing the idler pulley and the belt tensioner (one of them is making a noise and I purchased an extended warranty!) At the same time he will be doing a throttle body cleaning. I had my timing belt replaced as well as the water pump and had my mechanic check all the spark plugs and all were fine.
I am going to have him check the motor mounts as well. The RPM's are fine with the AC on or off and I have used Lucas fuel treatment on this current tank of gas without any results and my next tank I will try Seafoam as suggested by my mechanic.
Lexus SC430 :: Seat Vibration When In Idle
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.
View 3 RepliesLexus SC430 :: Slight Vibration From Engine At Idle
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?
View 11 RepliesLexus SC430 :: Engine Shake At Idle When At Red Light
I have a 2003 SC430 with 170,000 miles on the odo. When at idle, the car shakes a little. I notice it the most when at a red light. But if I put the car in N, the shaking goes away. It happens with the most severity when in D and with my foot on the brake. I'm assuming the shake is normal for a car of this age and mileage, but i'd like to eliminate it.
View 10 RepliesLexus SC430 :: 2005 - Alarm Sounding Intermittently?
I have a 2005 SC430 and all of a sudden the alarm is going off. Twice today once at 6am and then at 7.30am. Since then (it's nearly 2.30pm) - nothing.
I've not changed anything inside the car since it went off this morning - and nobody was trying to get into the car. The problem of course is that it autolocks and turns on the alarm.
This has only just recently started happening. Is there anyway just to lock the car and disable the alarm?
Lexus - Sc430 :: 2005 - Antifreeze Odor Inside Car
I have an '05 Lexus SC430 with 53,000 miles on it. For the past couple of years, I have noticed an intermittent antifreeze smell (sweet odor) when driving. It never lasts for long and is apparently coming out of the vents. I can not figure out any common denominator to cause this, other than the radiator was replaced in Nov. 2014. My long-time mechanic has ridden with me a few times and I am unable to recreate for him to diagnose.
View 9 RepliesLexus SC430 :: 2005 - Got Seat Sensor Warning?
I bought my 2004 SC 430 used in 2005. The seat belt "reminder" buzzer or ding was silent and I have left it that way. Now that I am a member of this forum (just joined mid February) and after having so many questions answered solving problems I have been living with (like a steering wheel squeal when it retracts to let me out of the car, and a knocking above and behind the back seat, which turned out to be the shell that goes over the top when it is down, and lots of other solutions to things I did not want to go to the dealer about) I decided it is time to see if I can reconnect the seat belt warning. So, might that be a fuse?,Or maybe some wire under the dash that has been unplugged?
View 11 RepliesLexus SC430 :: Fuse Box For Driver Door / Vibration At Idle
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.
Lexus SC430 :: 2006 - Initial Engine Idle Not Going Down As Usual
My '06 SC has about 72k miles and I've notice of late after starting it, it initially idles at about 1,200 RPM and tends to stay there until after driving and warmed up and then goes down. It used to start up at 1,200 RPM and after a very brief period of time would settle at 1,000 or 800 RPM, I can't recall exactly. My question is, is this normal related to the life of the engine, or do I have a sensor or other type of issue that can be addressed.
View 12 RepliesLexus SC430 :: 2005 - Starter Making Loud Noise
I have a 2005 sc430 and the starter went out so i changed it but after i had change it its making a loud noise. So I don't know if its the starter or the intake manifold that is making that loud noise it sounds like i have a big supercharger on it or something every time i rev the motor u can hear it spool like a turbo...
View 3 RepliesLexus SC430 :: Shakes When Idle And At Stop Lights - New Motor Mounts?
I have recently had my motor mounts and transmission mount replaced.
Before the replacement, the car would shake quite noticeably when the engine was being started (maybe even shake 'violently'). I thought this was normal until I had my motor mounts and transmission mount replaced. Now when I start the engine the SC430 doesn't shake at all. The difference is profound.
Just a head's up. I'm not sure what the implications are of running with bad motor mounts for a long time, but I decided to get it done because my car would shake when idle and at stop lights.
Lexus SC430 :: 2005 - Steering Wheel Shakes When Step On Brakes At 50mph
drive an '05 sc430 and the steering wheel shakes at above 50mph when I lightly step on the brakes. I have recently had my brakes done and an alignment done as well as both rear shocks replaced.
View 14 RepliesLexus SC430 :: 2005 Bluetooth Pairing - Phone Icon Not Present On ML Nav Info Display Screen
Just took delivery of my 2005 SC430 (Egyptian Sand, white leather, 55k miles. Lovely vehicle.) which I thought came with Bluetooth.
However, when looking to pair my iPhone 4S the 'Phone' icon is not present on the ML Nav Info display screen, suggesting that maybe Bluetooth is missing? I confirmed it's a 2005 from the VIN.
When I depress the little button below and behind the steering wheel volume buttons (left side - this is a US car) I get a voice saying 'No cassette inserted' or words to that effect, suggesting it's a cassette control button, not a Bluetooth one. The Nav instruction book which came with the car specifically refers to the presence of Bluetooth.
How to find if I have Bluetooth or not? My iPhone cannot 'discover' anything.
Lexus SC430 :: 2005 - Driver Side Heater Fails After Applying Leather Care Liquid On Seat
Weird seat heater issue on my 05 TAP/Ecru. Drivers side seat heater tends to fail intermittently after I apply leather care liquid on the seat. Does not happen on the passenger side. In winter, it failed for nearly a week before coming back to life. Yesterday it failed for the evening, then started working again today. Each time right after I applied leather care to the seats. Same amount applied to passenger and driver's seat and the passenger seat is always OK.
What is causing this ? Of course each time I go to the dealer, it is working fine !!!!