Why does it produce the white fume only when temperature indicator is below COLD??
SOURCE: exhaust fumes coming through heater vents
YOU HAVE AN EXHAUST LEAK ON THE FRONT END OF THE EXHAUST SYSTEM.GET THAT FIXED ASAP! THAT IS CARBON MONOXIDE!
SOURCE: Chevy Impala 2005 Gas fumes
It is a fuel pressure regulator. About a $60 item & 20 mintues to change.
SOURCE: diesel fuel fumes
check your injector returns, and diesel filter return pipes as well as injector washers
SOURCE: our 2001 Chevrolet Astro Van heater not working?
Could be a bad heater core, any fluid leaking around it...check under the carpet and padding if you don't see anything under it on the ground. Your coolant may also be low, and it isn't circulating to the heater core, or a vacuum line may be off the hot/cold gate on the heater box, there are a lot of possible causes, but i would check for leaks and fluid level first
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SOURCE: 2005 Yukon XL smells like gasoline fumes
you need to take dealership have your evaporative emission control system check.also check the fuel pressure regulator for gas leak.most of the time the o - ring will leak.cause gas fume smells
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