Sonata I45 (YF - 2011+) :: Steam / Smoke From Exhaust At Startup
Nov 24, 2015
How steamy the exhaust is right after a cold start? I have always noticed it in my passenger mirror, but yesterday I decided to stand behind the car and watch it right after starting it up, and I actually saw a few puffs of black smoke coming out with the steam. I'm not losing any coolant, so I think all of this must be caused by the engine running extremely rich when cold, the fumes were pretty bad too. Once the idle settles down the black puffs go away, but the steam lasts a good while. I have never had a newer car run so rich that it caused black sooty smoke.
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I have an 07 Sonata V6 Limited with 65K miles. Recently I've noticed at startup, the valves pinging and blue smoke coming from the tail pipes. Settles down after a few seconds and doesn't do it again if you shut it down and re-start. Last time I experienced this was on a Silverado with well over 100K miles. Back then it was valve seals. Could this be possible with 65K? I noticed in the maintenance log that they request having valve clearance inspected at 60K. Could this be causing my condition? I'm the second owner, so the 100K warranty is out of the question.
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So this only happens one time a day when i do it. It does not matter if it's early morning or afternoon.
I pretty much give full throttle and i see in my back mirror grayish smoke coming out of the exhaust, kind of like when you are on a very dusty road. But i do it again right after or 10 minutes later and it does not happen again until the next day. Then it's the same deal.
I'm not doing anything different.. I do my oil changes every ~4k miles i drive mostly city with barely any stop and go tho. Is this something i should worry about and go see the dealership? Or is this because it is a GDI engine?
I did not have this with my old car even at high miles. But then again my old car was no GDI. I am currently sitting at 24k miles.
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My 2011 Sonata is now at 56000 km (35k mi). While driving with a friend, I floored it when entering on the highway and he told me there was some dark smoke coming out of the exhaust.
I take very good care of my car and recently started using supreme gas and synthetic oil. It runs very smooth and never really had any problems... should I be worried? Is this normal?
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I've owned this vehicle since new and never overheated or had any major mechanical issues. It just hit 130,000 miles and recently completed a 1500 mile uneventful road trip running great.
The other day I noticed an excessive amount of steam/smoke coming from the exhaust while sitting at a stop light after recently starting the vehicle. Once the van was up to temperature the exhaust steam/smoke cleared up.
I checked the radiator level and found it was about a qt low, and did not seem to have any exhaust bubbling or fumes in the radiator.
Then, I pulled the dipstick and the freshly changed oil looked a bit cloudy (I got really nervous), I really can't say its milky colored because I can still see though the oil and see the cross hatches on the stick. But it doesn't look like new oil.
The engine seems to be running fine, no loss of power or missing. Starts and idles fine.
Talked with a mechanic friend and he immediately said blown head gasket or intake manifold was allowing water from one of the four corners where the gasket seals the water jacket, into a cylinder.
Since that first episode of excessive steam/smoke it hasn't reproduced the problem to that degree. It does start to steam out the exhaust after about 5 minutes of starting cold, but seems to dissipate after the engine warms.
The amount of smoke / steam in that first episode, I couldn't see the car behind me in the mirror ... I looked like a mosquito fogger.
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11' Non-Turbo 2.4 with 145k Full Synthetic every 5k (Done me or provided to the quicky lube) Around 80K about 2 weeks after taking it in for an oil change my wife heard a ticking sound coming from under the hood. Pulled over and there wasn't a drop of oil on the stick. It started with about a qt every 1000 miles or so, now it's to the point that I have to put a qt in about every 3 days (1-200 miles)
We cannot see oil anywhere, last I checked the plugs had carbon build up but were not wet. (Recently) We also hear a ticking sound during hard acceleration and a good bit of black smoke coming from the exhaust.
We still owe 5k on it, it's our first new car and I'm terrified the thing is going to blow up before I pay it off. Tonight as I was about to get in the car with her I heard the clicking sound again but this time it was full (just added some yesterday). I have compression and leak down testers, know a little bit but I am nowhere near a "mechanic".
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I have a 03 Camry, that has started to release white Smoke from the exhaust only on start-up for about a week now. After that I don't see anything not even if i rev up the car.. Only on start up.. WHY??
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2009 Camry 4cyl
I changed my PCV valve over a month ago and still have white smoke coming form exhaust on startup. The smoke goes aways as always, after that the smell is gone and the car runs like normal. The smell of the smoke is not really sweet as if it was coolant leaking, but its not exactly smelling like burnt oil either (I've had cars that burnt oil real bad and it smelled different than this camry).
I've been keeping an eye out on my oil and coolant levels, both seem to be ok. I refilled my coolant tank to full about 2.5 months ago as it was very low and its still almost at full right now. My oil after about 4k miles on the dipstick measures right in the middle of the min and max dots, which it has been for as long as I've owned the car. So these levels are ok I think.
Now, I've read somewhere a while back that after changing the PCV valve or rather after taking the old one off that there still will be some residue to be burnt off. A way to get rid of that is to create a makeshift vacuum by plugging one end of the hose (the one that attaches to PCV valve) and leaving the PCV valve off while running the engine, putting some kind of cloth or similar over where the PCV valve should go to collect all the burnt stuff, thus cleaning the remainder out. Is it possible that this might be the a solution?
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I've been chasing a problem all summer. Began with crappy batteries dying intermittently. I replaced the batteries, FICM, finally cleaned EGR valve and replaced ICP with pigtail. The problem is still persistent. Basically a rough idle, puff of whit smoke on cold startup, rough running at around 1500 rpms( driving at 50 mph). The ICP was soaked in oil so i was confident replacing it would finally cure my issues. It actually got worse with the rough idle turning to a surging idle and quite rumbly at 50 mph speed. I guess its time to look to injector issues but i thought id check if after replacing icp/ cleaning egr. I also have a slight exhaust leak at turbo out that i can see. The clamp is not seated properly. This after turbo connection to exhaust.
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I recently purchased Sonata NF 2006, with L4 engine with 108 miles on it. I noticed that mpg is very low - 16-17 50/50 city and highway. The engine runs smooth and pretty fast for 4 cylinder engine, there is no smoke coming from the exhaust. While driving with A/C on i did not notice any pressure on generator or anything like that.
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As I was driving today on the highway, I saw a whitish cloud of smoke come out of the exhaust.......the car seem a bit wobbly after that. It only happened once. the ring around exhaust tip is all black. I am not sure if it has damaged anything? What it could be?
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Sonata 2007 3.3L V6 ... I have nearly 70K on my Hyundai, and I am the original owner. Everything was fine until 24 hours ago until I got a knocking noise. I stopped, shut off the engine, and had it towed.
The mechanic says that based on the symptoms (knocking, some white smoke from exhaust) that it is powertrain warranty related, and I should be covered.
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Car wouldn't start, would just kind of do a high pitch whining. Bought new battery and still does it. It might crank right up or take up to 5-6 times. I'm a second owner and I believe it is the starter.
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I cant start the sonata 2011 unless I keep the start button pressed for 10+ seconds. It just doesn't start anymore by just pressing the brake and hitting start button once. I figured before I replaced the brake light switch, is that's what causing this problem?
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My 2011 sonata rattles when starting. It sounds like noisy lifters and quits after 2-3 seconds. It does not do it on the first start-up of the day, but on subsequent starts when the engine is warm.
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I have a '97 volvo 850 R with 185,000 miles. ive owned it for 2 months and synthetic oil is used in it but I haven't changed the oil yet. When I opened the oil filler cap today just after I drove it, smoke or steam came out of it. i checked the dipstick and there was white sort of gunky stuff on it. What is that? would an oil change fix that?
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I have a '97 volvo 850 R with 185,000 miles. I've owned it for 2 months and synthetic oil is used in it but I haven't changed the oil yet. When I opened the oil filler cap today just after i drove it, smoke or steam came out of it. i checked the dipstick and there was white sort of gunky stuff on AUTOCOM CDP PLUS. what is that? would an oil change fix that?
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Sometimes when I start my car, parking brake light fails to go off. I know this is usually indicative of low brake fluid, but mine is not low. I rarely use the brake so I don't think it's the parking brake switch either as it only happens if the parking brake is not engaged. Never happens on the occasional use of it.
Restarting doesn't seem to work unless I set the brake, restart, then disengage it. Very strange problem. Not a big deal but is a bit perplexing. I never see a CEL or any codes generated at all.
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So i have a 01 LS and i love it so much. Ive only had it for 5months and since the 3rd month ive been having some overheating problems. Ive replaced the coolant reservoir it drove fine for about 3weeks then started to run hot again and leak coolant out the reservoir cap so i replaced that. Still ran hot.. so my brother got some air pockets out of the system but, it still ran hot. So i replaced the t-stat. After replacing that it did fine for a few days then started to run hot again. This time it seem to run hot one day and not the next until one day it ran hot constantly and steam would come from the reservoir and coolant would leak from under the car (behind front drivers side wheel.).
So when it leak i would check the overflow tank sometimes it will be full and sometimes not. When it wasn't full I would refill it until i ran ran out of antifreeze. Well i parked it after it leaked out the last of antifreeze that was in tank. So a few days later i got some antifreeze that was given to me by my brother which was red/orange all purpose antifreeze. I filled the tank up as it was dry and had leaked out all the green antifreeze. I started the car and let it run. It ran for about 20min without getting hot quickly like it usually do, air worked great but hea not so great.
Then I started seeing steam come from reservoir tank which was full of red coolant then its started leaking GREEN coolant instead of the red i filled the tank up with. Also the temp gauge never went to H while it did all of this. And the antifreeze drip from like 4 or 5 different places behind my left front wheel. Its a v8 3.9 engine.
I know one day i checked my coolant after it ran hot one day and it was low so i filled it up with water and forgot to put cap back on and i hopped on freeway. Soon as i got off it started smoking really bad i pull over and the coolant was boiling which i also forgot to mention. Thats another thing it has been doing. But the smoke came from the coolant boiling in tank and since i forgot to put cap on the smoke came out freely from tank. Could this have caused a problem. Although my car was running hot with coolant boiling in reservoir way before i did that and even after.
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Got my joe z exhaust put in today. After getting it installed i was obviously getting on the car to see how it sounds.. I came to a stop and smelled that sulfur smell that people normally do when getting on their engines but also noticed some smoke/steam seeping out from under the back of my hood. No overheating though. Immediately got alarmed and shut off the car. Popped the hood and everything was fine. No smoke at all. Turned it back on and all was normal and drove the car again and there was nothing.
What could this be? something serious i hope not. i do not drive me car hard at all. its got almost 14k and changed the oil at 10k. this has never happened before. It was hot today though like 90+ ... Maybe it was just from driving it hard?
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It might be a bad heater core, but my heater works fine and there is no moisture on my carpet.
Occasionally I'll see traces of steam and smoke enter the car through the vents. I also smell a coolant smell. I was losing coolant very slowly, but the level has been holding.
Now my AC doesn't blow nearly as cold as it once did.
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