Lexus SC430 :: Slight Vibration From Engine At Idle
Dec 31, 2014
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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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 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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Experienced slight vibration at idle with the ac on ranging from 780-825rpm n causes shaking. Don't remember it ever doing it before. Also once I off the ac it goes away. Also the car started dropping rpm a little when slowing down.
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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'm not sure if this is normal, but I have noticed a slight vibration in the steering wheel. This happens when the engine is completely warmed up and If I'm sitting at a complete stop in drive (no air conditioning, seat warmers, or headlights on) it happens. It is not a vibration where the idle goes up and down. The rpm gauge shows that it is between a consistent 550-600 rpms. When the headlights or air is on, the idle goes to around 700-750 and the steering wheel vibrations go away. I do not have any cel on and I know the car is not miss firing. I think it's just because the low idle.
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I posted a while back about my 04 5.4 having an issue at idle. I did all the normal things like replace coil, spark plug, etc etc. No change to the issue. It still acts as though it's misfiring on a cylinder and I get codes P0306 and P0316. Finally took it to ford and had a diagnostic check ran. Everything on the top end was in working order. The tech even put a known working coil on 6 and nothing changed. I was told that it's either an intake or valve issue on that cylinder. But no definite answer to problem.
Fast forward to yesterday. I got a wild hair at lunch and went out and started truck. Pulled injector plug off of 6. No change to the way it was running. I did the same for 5, 7, 8, 1, and 2. All of which made a big difference in the way it ran. It was obviously misfiring with no fuel to cylinder. This gave me the idea to swap 5 and 6 when I got home to see if the issue followed the injector from 6. I did NOT. I pulled the plug on 5 and got the obvious change in the way it ran. So there is definitely something going on at cylinder 6 that I cannot figure out.
PCM, bad intake, bad valve? I'm not rich so a trip to ford for repair is gonna have to wait. Truck seems to run fine when driving except for slight hesitation during acceleration.
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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.
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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.
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I have a 02, sc430. Modded with blitz supercharged and straight exhaust all the way..( accept the 2 catalytic converter before the o2 sensor.) But I have slight delay or lag during the first gear. From (rpm) 1k to 4k its delay or lag.(not revving smooth). But when its reach 4k and above, the power just kicks in suddenly.
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I have a 2008 focus and at about 15000 miles started having a slight vibration at idle. Its idling at about 700rpm is that normal? It more annoying than anything. Took it to Ford and they just say its normal. What the problem could be? Should I replace the plugs?
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2015 GTI have a slight vibration at Idle speed is this normal I have a 2008 a3 that car doesn't do it, it's almost like it's misfiring I know the car switches between direct injection and port injection?
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1.8T Car only has 73k on it.? When I am sitting at a stop I can hear a vibration sound coming from the engine bay. It goes away as soon as RPMs hit about 2000. My best guess is old, worn out engine mounts.
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I just bought a 2008 Elantra SE with 26K miles. So far, I've really enjoyed it, except for, at times, it does vibrate somewhat during idle.
I took it to the nearest Hyundai dealer, and they clipped the throttle cables to the inside of the firewall. This did make some improvement, but I still feel vibration during idle when the engine is warm (doesn't seem to as long as RPMs are up). It's almost as if the idle is set a little too low.
Maybe this is just normal vibration? It's not too bad, just noticeable. Can idle in these cars be adjusted? It seems the car is too new to have clogged fuel injectors. Everything else about driving it feels great, acceleration, etc. Do you think using a higher octane gas would work?
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I have a slight squeal from the left rear brake when in reverse. Doesn't do it all time and never when roads are wet. I disassembled the caliper and all looks good. I replaced the pads about a year ago and the noise just recently started, so its hard to blame that. I did not use the brake anti-noise lube......but I never have.
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I recently bought a 2004 Hyundai santa fe 2.4l with 94k miles. when sitting at a idle it has a slight vibration in the cabin, feels like a slightly rough idle, when you drive the vibration is gone. I also had it throw misfire codes for cyl 2 and 4. I put in new plugs and changed the wires, coils are on the way. When the car is in drive and I put the parking brake on and walk up to the motor it sounds like it has a exhaust manifold leak, but I only hear it when in drive. I guess my question is, could this exhaust leak be causing the rough idle or will this be fixed once the new coils are on?
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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'm looking at a 2001 Excursion with 242k miles. Truck is all stock, and everything checks out well. The only thing is there is a slight vibration at idle, that increases quite a bit when the engine is revved to about 12-1500rpm. Ran a CCT, and #8 was flagged. I know that can be somewhat normal depending on the CPS, right? Otherwise the truck is smooth, and in great shape. Should I be concerned about what feels like a slight miss on #8?
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5.0L ... I'm having one of those moments, you know after you do a mod to your truck and all of a sudden you notice something about your truck that could have been there all along but now you notice it as something new? Ok earlier in the week I had my exhaust resonator removed and replaced with a straight-pipe by a reputable exhaust shop. IMO the work looks to be pretty good for what it is.
That said I have always been nervous about getting exhaust work on any vehicle because it always seems like tampering with or removing the OEM plumbing for aftermarket or custom work tends to develop a vibration at some point.
So here is what I've noticed over the last couple days, when driving my truck it is extremely smooth, almost like glass. When I come to a complete stop say at a traffic light about 1-2 seconds after making the complete stop I feel this slight harmonic vibration in the steering wheel. For those of you that have an iphone it would be like having your phone bolted to the steering shaft somewhere and it on constant vibration if that makes sense.
Just to prove it only happens when I'm sitting still and idling in (D)rive I sat in my driveway with the truck idling, set the park brake and released the brake pedal holding the truck in place in (D)rive with the parking brake. No vibration, smooth as glass engine idle, as soon as I put my foot back on the brake pedal the vibration comes back. It's as if the extra draw of applying the brakes puts an extra load on some sort of accesory drive or componant under the hood and the result is this harmonic vibration.
Just so everyone knows, the vibration is very noticeable to me because I drive the truck daily, most people wouldn't pick it out if I didn't tell them first. Case in point if my wife drives the truck she can't feel it unless I tell her what to look for. There are going to be some of you that just say my truck doesn't do this and has had a smooth idle for XX,XXX miles I believe you but let me know now that I have explained exactly what to look for. Like I said for all I know it's done this since day one.
I have a feeling that the straight pipe might have been welded in slightly longer than the oem section that was removed thus putting more tention on the exhaust and engine if that makes sense, the end result being a slight vibration?? I know that manufactures put these little rubber bushings along the exhaust system on cars/ truck to absorb harmonic vibrations and for all I know my resonator might have been designed to balance out harmonic vibes in the exhaust system as well as quiet down the exhaust.
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