Civic - Honda :: 1999 - Sulphur Smell Comes Through Vents On Startup?
Jul 30, 2011
When I start my 1999 Honda Civic, a sort of sulphury smell comes through the vents. I ended up having my compressor replaced today, and I assumed the smell would be clean, because the a/c is new. (Tells you I don't know much.) Anyway, the smell is still there, along with a smell from the oil (I have a small oil leak) and engine. It all goes away after a minute or two, but is this anything to worry about?
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My 99 civic HX (manual trans), makes a noise that is there on start up and while the car is running. It only goes away when I press the clutch in.
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The first time I noticed the sulphur smell I figured it was another car. Since then it has happened several more times, typically when outside temps are a bit on the high side.
I saw some members noticed a fishy smell with a/c but I would say mine is more toward the rotten egg smell. Once I am parked the smell is gone with no residual under the hood.
Also, one time I noticed with temps in the high 90s and shutting down the engine there was a pretty dramatic spooling down noise of some sort after the engine was off. Has not happened before our since.
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I have a Honda civic 2011. Sometimes my middle two ac vents is not blowing out any air at all ( but the sides somehow works very little ). The reason why I said sometimes is because it stopped working for a day then it would work again the following day. I don't know what's wrong with it. I called for an estimate and the guy tells me if he has to open up the dashboard to open up the vents it would cost in upwards of 800.
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When I turn my key the car makes an awful grinding noise and then starts up fine. What is this and should I have it looked at?
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I have a 2008 Honda Civic with 65K miles. It's started idling rough and vibrating just on startup when it's been sitting overnight. This continues until I start driving up the road at which time it stops. I ran a fuel cleaner through it and changed the air filter, which was slightly dirty but not too bad. No effect. Then I took it to my Honda mechanic and he said there was nothing wrong with it.
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We have a 91 civic whose air conditioner doesn't work. The coolant level is good, and the compressor is running, but we only get external air coming through the vent.
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2003 Civic, ~180,000 miles. Previously had overheat problems, replaced head gasket, timing belt, water pump, thermostat and hoses (+ a few other things) No longer over heating, but there is no heat coming from the vents unless the car is over 2,000 rpm. Hoses to the heater core are both warm/hot, so flow through heater core seems to be good. Also AC has same issue no cold air unless over 2,000 rpm. Is this the control to the blend door? Are they operated by vacuum and with a leak, need higher vacuum to operate?
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'96 civic 180k miles. Just had timing belt replaced but has been clicking when cold so mechanic checked & adjusted valves. Still clicks on startup until warm, less than 5 minutes, as it has for the last year or more. What could be the problem?
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History: A few months back I had a leak repaired in my cooling system. I noticed the other night that my radiator was nearly empty again, so I've filled it back up, but haven't fixed it yet.
As summer is over, I no longer need my AC. However that caused me to notice that at its coolest setting, the vents are blowing warm air (maybe 15ยบ warmer than outside) and that seems high to me.
My immediate thought is that the heater control valve may be leaking/damaged/corroded.
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This is a 2003 honda civic with about 150k on it. Recently the check engine light came on so I went to Advance auto parts to get my codes read. I got back that the oxygen sensor had gone bad and each and every cylinder was misfiring?
What could be causing the each cylinder to misfire like that? I drive it about 60mi every day and it doesn't seem to drive all that rough. So it's kinda weird that it said every cylinder was misfiring, like how could I even drive it like that?
I heard the oxygen sensor is something I don't have to worry too much about. I could still drive it. The clerk told me to some spray carburetor cleaner on it and that should do something for it.
But recently I've noticed that it starts up rough, seems to strain for about 2-3 seconds then it starts.
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2003 Honda Odyssey 150K+ miles... My wife called today and said she was smelling raw gas coming from the heater vents on the first cold day this year. I thought we had this issue last year but not 100%. What it could be or how to fix it?
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I own an old Civic and I noticed in the past several months that I get a burned oil odor in the passenger compartment, but only when I drive downhill. I more recently notice that if I accelerate while driving down the hill, a cloud of smoke trails out behind me then clears when I let off the gas. This car has 294,000 miles on the odo. (I know) and I DO have to add a quart of oil every 2 weeks or so. It runs great though. Is my motor about ready to blow or what . . . ?
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About a month and a half ago, I took my 2005 Honda Civic LX to a mechanic for an oil change. He informed me that my air filter needed to be replaced as well, so I told him to go ahead and do so. Ever since I got the car back, however, I've been smelling car exhaust unless I push the button for recirculated air. What could be causing this?
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About a month ago, I smelled a very faint smell of radiator fluid inside the car while the air was on. This happened twice, once on the highway when RPM's were running fairly high/engine temp was slightly higher than usual, and once on sidestreets when I was driving at high RPM's/in lower gears than normal (manual transmission). When I stopped the car it cooled down to normal level immediately and smell went away. I added coolant to the reservoir.Then I noticed nothing for about a month, so I figured everything was OK.Last week, my engine was running hot (usually is at 50% on the temp gauge, it was at 75%, where 100% is red zone), driving at low speeds.
About 5 minutes before that, I had the heat on but noticed the air blowing in the car was not heated even though the engine was warmed up (I assume due to lack of radiator fluid flow through the engine). The car did not overheat, because I pulled over and added water, and later added some coolant. During that incident I did not notice any smell inside the car. At the end of the week, I noticed the car running slightly hot and checked the reservoir. It was low--most of the coolant I added had disappeared in just one week.
Usual things to check:-radiator and all hoses are new-no leaks under the car-no white exhaust/smoke or smell outside
Other things about my car: It is a 1997 Honda Civic. Has never had any major problems, and it's running smoothly, but it does burn oil. The first time I noticed the smell, it was just after I had driven on the highway with slightly low oil level (still on the dipstick, but slightly below the bottom dot. Not too far on the highway--about 20 minutes). Not sure if that could be related.
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In my 2006 Civic I intermittently get a dirty gas smell in the interior after I drive and park the car, and then come back a few minutes later and start it. Do I have a gas leak of some kind? I have not noticed a loss in mileage.
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I have a 1998 Honda Civic (160,000 mi) that occasionally wont start. It usually happens when I have been to the store or something, when I come back out and try to start the car, it just cranks and cranks with no starting. The first time I left the car for a few hours because I though the engine might be hot and if it cooled down it would start. After leaving it for a few hours, it started right back up, no problem.
More recently when this happens, I let it sit for 10 to 15 min trying to start it every once in a while and eventually it does start back up but it really smells of fuel (I think it flooded). Also, on the freeway I can feel it misfire a little bit but to me, it's not a huge problem. Also, occasionally when at a light or something it will rev up and down until I start driving again. A few months ago, my friend replace the distributor, wire and plugs and timing belt but the problem still persisted.
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I have a 2008 Honda Odyssey. Lately, we've been bothered by a sweet smell, particularly when coming to a stop at the bottom of a hill or acceleration uphill. The smell is most noticeable from the two front, center AC vents. The dealer swears it's not a hose or heater core issue. He also checked the cabin air filter. AC "on" and recirc "on" seem to exacerbate the problem.
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We bought our 2002 Honda Civic new and have maintained it exactly as specified. Intermittently when we turn on the AC/heater we get a horrid smell, sometimes like dirty socks, sometimes like vomit, sometimes like damp basement. We recently had the cabin air filter changed. It doesn't happen every time we turn the AC/heater on, but enough that it can be very irritating!
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While driving my Montero sport last week, I began smelling a burning rubber smell from the air vents. At the same time I noticed, on the dashboard, that both the brake, and, battery indicators had lit up. There was no smoke, mist, or off sounds, coming from the engine, and, the engine seemed to be running no differently than before this occurred. I drove home, parked the car for 5 days, and, yesterday visually inspected what I could see, which was almost nothing unusual. I started the engine and let it run for about 10 minutes in park.
The engine ran normal, no noticeable knocks or pings, no shaking of the engine, the belts ran smooth, no noticeable leaks of any kind. I checked all fluids and they were at normal levels, only the power steering showed a slightly lower than mid level of fluid, not anywhere near low.line. But, as soon as I started the engine, the dashboard indicators lit up and stayed on. There was only a very faint smell of rubber at the end of the 10 minute running of the engine, barely noticeable. The only thing that I did different recently was about 2 weeks ago I added a quart Pennzoil high mileage motor oil 5-30 instead of the usual GTX high mileage motor oil 5-30 that I usually put in the engine, as there was none available at the store. The auto has ran very well for the past year.
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2005 F350 Lariat crew cab a few weeks back.
My question.... I noticed a strong ammonia/super glue like smell floating around in the cab about the 3rd time i drove the pickup. Since then, it seems to do it intermittently. My first assumption was it was coming through the vents. I have done a couple experiments, and I don't believe this is the case. My wife and I were driving yesterday and she thought she noticed the smell again. while I was driving she started checking all the vents, and nothing. But when she leaned clear down near the speaker hole in the door, she said she could really smell it.
What could be causing this? I'm assuming if it was the AC it would be coming though the vents. And at this time, I don't think it is.
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