Lexus SC430 :: Bad Smell Coming From Exhaust
Oct 15, 2014
I have a 2003 SC430 with 170,000 miles on the odo. It runs great, but the exhaust smell is killing me. I'm pretty sure it's normal for an 11 year old car, but I want to eliminate it.
Do you know what part or part(s) I might be able to replace to eliminate the foul smell?
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I have a 2002 SC430 with 130K+ miles. I have recently noticed that after some spirited driving the front of my car smells strange. I can even smell it outside of the car in the front where the radiator is. The smell is coming from the engine and through the front grill.
If I set my climate control to pull air in from the outside then the smell will get pulled into the cabin.
I checked to see if the exhaust evap hose got disconnected but it has not (can also cause smell around the car). The check engine light is not on and the temperature gauge appears normal. I've noticed my windows seems to fog up easily too now (I run the heater all the time since it's winter here), perhaps some antifreeze is getting into the climate control system? I'm hoping it's not my heater core starting to go, since that's an expensive repair.
Perhaps this could be a sign that the radiator is leaking? I got the car used and believe I have the original radiator in there.
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I purchased two new exhaust tips for my 2006 sc430 because one of the exhaust tips was slightly bent. I thought by removing the screw near muffler would be all that it took and each one could be pulled off. However after removing the screw from one of them, I could not pull it off.
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I have noticed an oil burning smell when i come to a stop. Its been getting worse. I just replaced my valve cover gaskets. With new spark plugs also. Any way after I completed the job, I let the car run for a few minutes and seemed like i could still smell the burning smell. May be its just because it all needs to burn off the heat shields, but I thought I saw some oil accumulating on the bottom side of the v.v.t solenoid on the front of the valve cover. Is that a separate cover? Doesn't seem to be a gasket there. Do these v.v.t covers leak a lot?
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Lately I've noticed an exhaust smell coming into the car when idling. Could it be an gasket. Car doesn't sound different at all or anything.
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I have a sc430 and I had to change the Ecu, I've had it mapped so the keys all match and now it wants to start but it just doesn't seem to want to kick in , it turns over then just shuts down, there is a smell of petrol so I'm assuming its getting trough , I just wondered if there is any other reason for it not to start ...
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Mechanics are stumped. 3 months ago, during a 4WD commute through the snow, I started noticing what at the time smelled like bus exhaust coming into the cabin. My SES lights comes on for 2-3 days, then off for 2-3 days. Codes say MAP sensor and low coolant coolant.level. When the SUV warms up fully, you can smell the odor strongly under the hood, inside the cabin while sitting at a stop light, and inside with the Heat or AC on. Mechanics had the car for days, replacing cam and Map sensors. There is no evidence of exhaust leaks or coolant on the engine. Level of coolant has been dropping slowly in the reservoir.
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For the last few months, I've had an annoying problem with my 2003 Liberty. If I'm driving the car with the blower on (i.e. when it's cold out), whenever I stop the car and am idling, I get a very strong exhaust smell coming in through the vents. If I turn the fan off, the smell goes away. At first I figured it was due to being behind other vehicles, but now I've noticed that it does it all the time, even when there's nobody else around.
I brought the jeep into a shop a couple of weeks ago to deal with a separate CEL issue (evap leak - fixed by replacing gas cap) and I asked the mechanic to look for an exhaust leak. He said he didn't see any readily apparent problems with the exhaust line.
I'd like to deal with this because it's not very pleasant to inhale exhaust fumes through the vents. I intend to take it back in - but is there anything I can tell him (i.e. like, a particular part of the exhaust system to inspect more carefully) that will solve the problem?
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Mazda Millenia 1996-- Smell of gasoline & exhaust coming in when driving. When we open the hood - smell of gasoline. NO apparent gasoline leaks! Mechanic found fuel injector stuck open - replaced it. Worked a little better for a little while. It seemed to only smell for 5 minutes after starting the car instead of constantly. Mechanic changed the spark plugs. Worked a little better for a couple of hours. Now it's continuous smell of gasoline and exhaust.
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I have a sulfur smell in my 05 since new, it now has 23k and is a little better now. The dealer said to switch gas stations. I haven't noticed this. I notice it going up hill with the top down sometimes but mainly after parking it in the garage. The dealer said it would not hurt the car. I worried that it is running too rich and damaging the coverter, plus it is annoying. I love the car but it sure isn't perfect.
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The exhaust from my caprice if thick and white. And there's a strong carbon smell. Could this mean my cat converter is bad?
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My 2001.5 Passat traditionally does not start easily when it is less than 6degrees outside. Today it was that cold..it started easily..but about 30 minutes into my drive to work..I realized it was a little smoky and exhaustish smelling in the car..once I realized it wasn't the car next to me..i realized if I turned off the heat..the smell went away..but at the stoplight..i could see smoke coming from under the hood..out the corner by the passenger/dashboard... Car has 80,000, recent oil change, what it is?
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I purchased a 2011 Chevrolet Impala last year with 14,000. When the car reach 26,000 I begin to smell a very strong sulfur smell coming from the exhaust. I took the car to the local Chevrolet dealer and was told that the particles in the catalytic converter begin to break up at about 26,000 mile and the result is a sulfur smell.
I didn't believe that all Impalas had this problem. So I took it to the Chevrolet dealer in the next town where I personally know and trust the maintenance chief. He put his two best men on the car and could not find anything wrong. I was told to try another gas station which I did but it did not work. I now have 31,000 miles on the car and the smell is very strong coming into the passenger compartment when stopped.
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My car was running rough, with white smoke and strong gas smell coming from exhaust. It died out on me a few times as if it was not getting enough acceleration. Well, I coded it and said misfire cylinder 3 and 4. I also tried to shut down 3 and 4, but did not shut down. I switched 3 and 4 with 1 and 2, still did not shut down cylinders 3 and 4. Engine coils are good, engine module was tested and passed twice. Ok, fuel injectors 3 and 4 were leaky and I changed them out. New spark plugs and boots. New oil and filter..(There was gas in my oil and oil in my air filter.) With the new parts....my car sounds soooo much better!!! still a little rough, does not bog down, but it still has the strong gas smell and white smoke from exhaust..(gas smell soo bad I had to open all doors to the garage!!) What else could be wrong?!?! I'm getting frustrated!! It also has NOT ever over heated, does not run high.
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I have a 2014 RX 350. I have noticed an intermittent issue with exhaust smells coming into the cabin when the car is on recirculate and I am at highway speed. It happens when I am first accelerating after I've entered the freeway. If I get the odor, I can make it go away by briefly hitting the recirc/fresh button to bring in fresh air for a few moments. This doesn't happen driving around town.
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Today I drove to dinner in my 2012 6.7 with no problems then on the way home my brother said he noticed my truck was white smoking quite a bit and he said there was a very strong exhaust smell coming from my truck ( he was in his car behind me) I ran a diagnostic test and what came up was code P0401 (I believe that's right). Need to figure out what is going on with my truck before I take it to the mechanics and get charged up. The truck still has DPFs in it just has a DPF back exhaust and has a AFE cold air intake running on a stock tune. However I do have the DPF deletes and EGR delete sitting in my garage just haven't gotten them on the truck yet.
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The sulfur smell is due to poor exhaust design. The muffler outlets are not extended far enough out to dispense exuast from under the vehicle. I will be trying pipe extensions ... 2008 LS460 38,000 Mi...
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So the wife's 08 Mountaineer 4.6 likes coolant. None in the crank case. I suspect head gasket, since I can smell it a bit in the exhaust, but I have also noticed steam coming from the drivers side firewall area, but can't see anything. If it is head gaskets, am I pulling the engine? If I have to pull the engine.
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I have a 2009 lexus es 350. Its my baby since new. I have around 75,000 miles on it. Recently when I start the vehicle I noticed a heavier than usual exhaust smell, with some very very light white exhaust. The car seems to drive fine in every way.
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Over the past year I have been hearing a noise coming from the rear of the car. It seems to happen when the car is running and almost sounds like the fuel pump priming itself, but it happens when the car is running. So I don't think it would be that.
It doesn't happen all the time, it might but I miss it due to the loud levels I tend to listen to the stereo at.
My other thought is that it might be from the one of the top motors to raise and lower the roof.
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I just got home from a 650 mile trip and I have pinpointed something I have been hearing for a while but couldn't figure it out. It's a very very faint rattle (something like the sound a hard drive makes) and it seemed to be coming from behind the dash. I experimented a little today and this is what I noticed.
It is actually coming from somewhere around the gas pedal and it only does it when you are neither accelerating or decelerating. In other words, when the engine is at equilibrium if that makes any sense. It's a tiny sound and I should just turn the radio on and forget it, but it's just one of those little things that bugs ya.
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