Check the timing belt.
it causes gases in the air:)
Blown Head gasket. Recommend getting it replaced ASAP
You may have blown a head gasket. Stop driving it until you can find out.
White smoke is coolant entering the combustion chamber. You have a blown head gasket. STOP driving this car immediately or you will destroy this engine. The head gasket must be replaced.
I also have a 2000 Venture same problem. Solution was tire balance weights fell off. They were replaced and problem resolved but....the tires were worn irregularly on the inside and I had them replaced.
fuel pump and or filter/ catalitic converter
drive shaft carrier bearing needs to be replaced
Tire out of balance or a bent wheel. Also check the motor mounts; this model had problems with them.
Had the same problem on my '00 4.7 liter. Turns out it was the throttle position sensor. Sensor was replaced at dealer problem disappeared.
your cooling fans are not kicking in. They make have clutches that have gone bad. they need to be replaced. Also check the themostat
The correct answer is : drinking and driving
The whistling sound made by your car could be caused from brake dust. Another reason may be from a bad wheel bearing that needs to be replaced.