Impala - Chevrolet :: 2011 - Strong Sulfur Smell Coming From The Exhaust
Apr 20, 2013
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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Experience a strong smell when WOT? Seems like every time I put my foot down hard through a couple of gears it stinks for a few minutes. The car only has 28000km, fresh oil change and running great.
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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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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 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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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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Just put a dual flowmaster exhaust on my truck, a week later my engine light came on. I also smell a sulfer smell and the truck seems to sutter when in gear at a stop, and also hard to start at times. What this could be!
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I have been noticing this Rotten egg/sulfur exhaust smell I have been getting for the past 2 months. So far it only happens when the engine hits 3000rpm or higher.
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My 2003 F150, 5.4L has been having some rough idle/misfires issues both at idle and under load.
I have fixed one big vacuum leak, replaced the PCV valve, new sparkplugs, seafoam and heet in the gas, replaced fuel filter, tested the fuel injector resistance. Coolant levels have not changed. The truck burns about a quart of oil every 1000 miles or so. The white exhaust is heavier than condensation, but it comes and goes. The rough idling comes and goes as well, and it usually happens under load and the CEL flashes.
The codes I get are random cylinders, po303, po308, po171, po174 were the most recent but there have been other cylinders as well. I clear the codes after each attempt to fix it and they come back different.
I notice that there is a small exhaust leak that drips water just behind the engine, and when I shut down the truck a lot of water will pour out of an area just behind the cab on the passenger side as well as out of the bottom of the muffler (small hole, looks drilled).
Usually the rough idle occurs after filling up the tank, but from different stations so I do not think it would be watery gas. I use Heet every fill up as well. Also, there is a sulfur smell after the rough idling occurs (catalytic converter?).
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There is no noise that would indicate a hole in the muffler, just the exhaust smell. I'm wondering if the catalytic converter is going out? If it is the catalytic converter, will it strand me on the highway eventually?
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I'm going to take my Elantra in to get it checked. My Elantra is a 2013, got it in March. Over the last few weeks, I would say, on 4 days or so there has been a STRONG exhaust smell. No smoke, nothing else but a smell. If I'm pulling into the garage with no idling, just pull in and park, I get out and the smell in the garage is very strong. I have to leave the garage open for at least an hour if not more to air it out. The cab ends up having a light smell inside the next day still.
If I'm parking outside when I get out I can still smell it, but not quite as strong, because I'm not in an enclosed area. I don't think it's an exhaust manifold leak, because I don't hear the popping. My best guess is it would be in the tail pipe area pre-catalytic converter, or in the catalytic converter if it is in fact an exhaust leak.
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Not long ago my wife said the air recirc doesn't work any more on our '04 V8 and I had to admit that I agreed. After a little investigative driving, I noted that heavy acceleration (or uphill climb) causes V8 to tick (can hear it reflecting on passing walls, for instance) and strong smell of exhaust in cabin.
I thought it might be a manifold/exhaust system leak causing the noise and the exhaust smell. Seems to be only when driving aggressively or climbing. Soonest the local dealer can see it is 7/21 (16 days from now). You think it safe to drive?
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I just had a blown motor swapped with a used engine with around 50,000 on it in my 2002 Toyota Camry LE 4 cyl.
After driving the car enough to warm up I turned the vent on and in comes a fairly strong exhaust type smell.
I have driven the car for a little over an hour since the motor swap.
The car is driving fine with plenty of power and no sputtering or rough idling.
I just called my mechanic and he seems to think it is due to the oil that is present on/around the motor/exhaust from the swap that is burning off.
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We've had a run of -20 to -40 weather here for the past few weeks.
A few weeks back I noticed that when I climbed into my truck after command-start warm up for 10 minutes, and I could smell strong exhaust.
I figured it was hopefully the wind, or an isolated event.
Over the past few weeks I've used my truck for 3-4 more around town runs and every time I warm it up I get the strong exhaust smell. It's that rich, eye watering, sickening exhaust smell. I also notice a small yellow frozen puddle under the exhaust tips that wasn't there before.
It's bad in the cab, but even walking around outside the truck and the smell is sickening. I actually just started the truck and I could actually smell the exhaust smell faintly, from inside my house! This has never before occurred. Prior to this, a person could hardly tell it was a diesel by the smell of the exhaust.
Once the truck is up to temperature the smell seems to disappear, or at least lessen.
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Not at the exhaust, but from the engine compartment. Have to open the windows at a stoplight. Can also smell it when I walk past the parked truck. What's up?
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1994 reg cab 4.ol 13ok.. my wife just got it, been doing some small things like replaced dome light, replaced cargo/third brake light, truck starts and seems to run ok. but i get a headache in it which i believe is carbon monoxide, has a leak or something? i text previous owner, he said he replaced 02 sensors, but didnt say if they were bosch or a good brand.. also trucks has a oil pressure and coolant temp gauge fitted on by the gear shift as the dash gauges for those functions are out. Does this mean the CTS may not be working and affecting fuel/air I do not know these trucks i only just found out what this strange silver looking thing was it is the IAC, I Believe, then there is this black plastic vacuum type cylinder by the passenger side firewall, what is that? and right against the drivers side fire wall is a small reservoir type thingy, is this something to do with ABS? i do have an ABS light on, was hoping it was the bulb out on the third brake light or something quirky like that no such luck its still on after starting engine. but i am concerned about this running rich/strong smell as we really cant take it far as is it, its dangerous, may have to get a smoke test? Just got the truck, trying to get caught up..
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I was checking my oil the other the other day and it has a pretty strong smell of gas. The car has 2700 miles and still on the original oil. I drive about 20 miles to work one way and don't make a lot of short trips. I checked tho oil when the car was new and didn't notice the smell. Whats going on? Is this normal for a GDI engine? I will take the care in this week to talk to the service manager but wanted to get some input before i went in.
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I have a 2011 GTI (stock - no mods) and noticed in the past two weeks or so a gas smell. The past few days it will be strong at start up after sitting for a few hours. I brought it to the dealer and they did not find any issues. After long drives, the odor is not present.
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There is an odor when it idles both in and out of the car but only after some driving - if I sit there a while the smell goes away. It is most noticeable when I get off the highway on my way to work and sit at a stop light. If i have to sit and wait for someone, the smell dissipates. I cannot find a leak. There is a performance issue but I'm not sure if it's related. At highway speeds it is having trouble accelerating - if I'm at 55 and want to go to 65, it'll go but it feels like there's resistance, almost a pulling, it causes the car to rock back and forth a bit - again it only happens at higher speeds. It has 140000 and is in good shape (except for things mentioned). The last repair was a water pump replacement about 4 months ago.
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My 2003 Impala has been running fine for months now, after about 6 months or more it got exhaust work and 2 months ago it had to get exhaust work again.
The muffler actually fell off on a long drive and a garage nearby said the previous garage totally screwed it up because the said the exhaust pipe was cut too short and they had to weld together a "fixer piece".
Then we took it to our local Firestone simply to get the hubcap covers taken off as it was a free service and after we had to them put back on, about 1 day later, we started getting a strange noise.
Everything sounds fine when you are idling yet the minute you start moving and especially with all the windows up it sounds like somebody is running a lawn mover or an airplane is flying above.
There is no vibration or anything just that strange noise.
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I recently had a turbo installed, everything went well, car runs very smooth considering having just upgraded the turbo. However, I keep noticing a strong smell coming from the engine bay. Kind of like a gas like smell or some chemical. At first I thought it was the loctite we used to put the gaskets in place burning off or the coating of the turbo but it has been a week and it still smells. I do not have a check engine light, my vacuum is right on the money, I am boosting fine, and my temperature gauge hasnt moved. What could this be? exhaust leak maybe?
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