it sounds like your exhaust manifold gaskets are leaking or you half a hole in your Y pipe
This can be caused by an exaust leak close to to your engine. Breathing exaust fumes can be harmful, get this checked out by a machanic.
car smoke is coming in threw my vents in truck it smells like carbon minioxde
Smoke could be coming from the vents of your car for a number of reasons. You may have an internal car fire.
Heat and condensation
It is recommended that you have both intake vents and exhaust vents. Most do it yourself sites recommend soffit vents for the intakes. Exhaust vents vary in both type and cost. For smaller houses the most recommended type is a ridge vent system. The number you will need depends on the square footage of your attic.
The air is off.
If you have an oil or gas fired furnace, you may have a cracked plenum, in which case you may be getting exhaust inside the house. Call a specialist right away.
An engine oil leak that drips or runs onto the hot exhaust and the fumes find their way into the fresh air intake under the cowl area.
Check exhaust system for leak i.e. Donut gasket, exhaust manifold, EGR valve
It depends on how much wood you use and how you set your exhaust vents. It can get very smokey if you close the vents and add a bunch of wood chips/chunks
heater core needs replacement
It is called condensation.