Question about 2000 Nissan Quest

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Nissan Quest 1994 had smoke when we turned the heater on

We smelled bad air after we turned the heater on and smoke started but then we cooled down for a minute turned the heater off and drove home the car is parked at home and i am afraid to drive it. Can u tell me what the problem is

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Check coolant level,could be heater core you may have a leak,it can drip onfloor,or inheater assembly

Posted on Feb 23, 2009


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I have a 1999 nissan quest when I turn on the heat smoke fills the van, what's wrong? Please help.

does the smoke have a sweet antifreeze odor to it?if so unfotunately your heater core is most likely leaking.

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Do you leave your climate control in the Auto position. This is bad. What happens is the evaporator which is located in the vents never dries out and you begin to grow mold. Does it smell musty, locker room type smell.
Also since it came out the heat vent it could also be a leaking heater core. Check you coolant level and reservior. If low this is an indication heater core is leaking. It may not of leaked enough to tell but usually these are the only reason the vents would smell unless a rodent ended up there and died.

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1994 nissan pickup--heater not blowing hot enough air

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95 nissan quest - strong smell of exhaust in the cabin area

The exhaust leak is almost always broken studs on the exhaust manifolds. It makes a tick noise when cold and usually goes away when the engine warms up. After a year or so, the noise doesn't go away.

Your heater-a/c air intake is at the base of the windshield through the screen on the passenger side. WHen the exhaust leaks from the manifold, the exhaust gas gets sucked into the air intake.
You can put the heater in recirc mode and it will draw air in from inside the car instead of though the outside air intake. You can't leave it in recirc for long in winter or your car will get ice or fogging on the windows from too much humidity. Take it off recirc after 10 minutes.

See this iste for more info

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1 Answer

Heater blows cold air

Assuming the temp in the car is fine..Sounds like a plugged or faulty heater core. Have the system flushed or remove hoses from firewall when cool and blow it out w/ compressed air

Oct 28, 2008 | 1994 Nissan Quest

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