I've had smoke coming outta my vents for the past month now and i think its carbon monoxide, it just kinda leaks out when i have no air on at all but if i turn the air on smoke just pours out, i have no clue what it is and havent really looked cuz i have no garage and its fruckin freezing and nasty outside right now, one guy told me it could be my heater core but i dont no, PLEASE HELP!
oh yeah i got a 1988 Ford Bronco Fullsize 4x4, 5.0L 351
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Run a radiator pressure test or test for carbon monoxide vapor in the radiator. You have a cracked head or block if the head gasket was installed correctly. Note the installation would include measuring the block and head for warp.
i don't think it's a good idea to inhale that white smoke, whatever fluid inside the A/C is poisonous, get your AC fixed immediately. From what I can gather the evaporator inside your compartment leaks fluid and the heater core and fan blows it up your nose. I could be wrong but if that white smoke is the same as what comes out of the receiver dryer then it is quite dangerous.
White smoke is usually indicative of a blown head gasket. Usually if you have blue smoke it's oil......If you have white smoke and possibly a "sweet" smell to it, that's normally coolant.
If it's coming out of your vents then I'd say you need new gaskets now. What's happened is the gasket blew out so bad that the smoke made it's way through the vent system, it's also coming from under your hood I bet giving my past experience with this.
Definitely new head gaskets to fix this though.
general rule of thumb, metal expands when warm,
Blue smoke is oil,
white smoke is either A: water in your exhaust, B: excessive fuel
If you have white whispy smoke any time you idle, i would be checking your catalic converter,
If you have blue smoke on idle at the time of start till your motor warms up id suggest it would be one or more piston rings with slight wear (normally first sign of serious wear)
generally you can tell oil smoke by the colour and the smell. it will smell rather burnt and will be obnoxious. if it is white then its more than likely "steam" and of course carbon monoxide, so it should generally disapate very quickly. which is usually ur catalic converter or in some cases more serious the first sign of a blown head gasket as you get coolant (or anti-freeze) leaking into the combustion chamber. that can be pressure tested by ur local mechanic.
I hope this has helped
It is very possible that there is still unburnt oil on/ in your exauhst and that could cause your blue smoke. Check your dipstick for signs of water or murkiness to make sure that there is nothing else wrong and be sure also to check under your car for any other possible leaks. after parking it overnight, you should be able to see if there is anything leaking a substantial enough amount to cause the burn off you are talking about.
Internal oil leak, change the spark plugs and cables, oil, filter and add Lucas oil. Take the car for inspection and let me know how it goes. For the belt depends where you get the parts and who does the work.