Loud noises from front of car on starting,smoke from vents,stopped engine,restarted engine no noise,but fan now not working.
It appears your fan itself burned out. When a field coil of an electrical fan burns out it usually makes a lot of smoke. The noise could be something that fell in there that stopped the fan from turning freely. I can imagine it heated up under the strain and burned out.
When you restarted it was burnt out so hence no noise and no fan.
The smell of the smoke should also be clue. Electrical field coils burning has an awful soury type of smell.
SOURCE: Air conditioning fan makes loud noise the faster you ru it.
Concerning your broken vent -- this can be caused by a broken linkage or a malfunctioning servo motor as well. these vent have air ducts the sway back and forth to adjust the dual air flow function. if the servo o linkages are malfunctioning or not connected for some reason, it will not allow total control of the air flow and temperature range. Now, if you have a combination of a flow error and temperature error as well, thai can be caused by a combination of the two.
In this case, you will need to inspect the linkages as well as the servo motor function as well. in addition, i would test the air temp sensors for there operational value. they control the temp when you adjust the coll or hot function.
Concerning the Loud noise coming from the blower fan---
This issue can be caused by a misalignment within the blower housing or, it can also be caused by some minor damage within the motor itself, causing it to rotate in a erratic manner, in return, forcing it to rub against the housing itself. the best solution here is to extract this blower fan housing and inspect for lose fan propeller and motor stability. replace parts accordingly.
PLease rate and have a great day:)
SOURCE: Fast clicking noise from AC vent of 99 Honda Odyssey
Yes, your theory sounds right. You'll need to remove the blower motor or a cover on it to visualize the squirrel cage and remove whatever is causing the noise. In some vehicles there is a cover under the hood, which when removed, will allow you to inspect the blower housing. If no such cover, you'll need to remove the blower motor.
SOURCE: oil consumption, rattle, engine noise
Check under the hood and inspect the valve cover gasket. If it's bad it would explain why you don't see any leaks on the ground because it's probably burning off on the manifold. This ticking you're hearing is a lack of lubrication to the rocker arms. Apart from the valve cover gasket, you should get under the car and inspect the oil pan and oil filter for seepage. Best of luck on your problem.
Greg
SOURCE: Air Conditioner Vents Not Working
AIR BLOWER RUNNING ALL THE TIME, ONLY STOPS WHEN YOU TURN THE CAR OFF. 2004 PACIFICA
SOURCE: Heater fan noise-'02 Nissan Maxima
Had same problem. Replace Blower Motor. Over a 100 dollars at local parts store, but found online for half price. About 30 minutes to replace. http://www.rockauto.com/catalog/raframecatalog.php?carcode=1431961&parttype=6916
6 screws to remove glove box, One plastic nut on kick panel and 3 screws hold the blower to the air box.
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