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Old 9th February 2009, 18:31   #1
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Default Weird Sound in AC Blower Fan in Swift petrol

I had bought swift petrol 6 months back. Was happy with the car till yesterday when i took my car out. It was early in the morning. I tried to switch on the heater there was some strange sound under the dash. I dunno how to explain. (the sound was like when the normal table fan is running if u touch the fan blades with pencil). its the same sound krrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr. when i try set the blower level to more then one. sound is faster, I stopped the car and check underneath the dash near carriage where we keep our docs and saw a black cylinder kind of stuff. but couldnt do much as i was getting late. and then noticed even the horns doesnt work sometimes. dunno if these two problems related to it or not. pick up has also dropped. whats that balck cylinder like thing under the dash where we keep our document. does it soemthing to do with AC.. experts please help.
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Old 9th February 2009, 18:49   #2
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Suggest you take your car to a MASS and have it checked... Trying to fix it by urself could cause more trouble than actually fix the problem...
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Old 9th February 2009, 20:07   #3
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may be something is stuck on the fan

can be paper or leaves

nothing serious

worse possibility - bad motor
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Old 10th February 2009, 03:31   #4
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horns and fans are definitely not related.

you might have dropped something in the vents.

Just take it to a good AC guy. He will open the housing and clean the vents.
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Old 10th February 2009, 07:18   #5
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Its just Dust on the blower motor!

On a lighter side, maybe that black cylinder is a hidden NOS kit!

cheers
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Old 10th February 2009, 08:43   #6
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since your car is new,take to it MASS.Your car is still in the warranty.Horns and fans are not connected in any way.
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Old 10th February 2009, 15:03   #7
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Put the fans on full blast and wait for whatevers stuff in there to fly out . If not then get it checked i guess.

If somethings jsut stuck in the blower it shouldnt affect your pick-up or horn.

Its not Rats chewing wires and stuff is it? It has been known to happen. Do you get rats in bangalore? - On a more serious note - Blower could have something stuck in it and the horn would probably be a loose connection.
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Old 10th February 2009, 20:43   #8
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Quote:
Originally Posted by headers View Post
Its just Dust on the blower motor!
Quote:
Originally Posted by Samir Taheer View Post
Put the fans on full blast and wait for whatevers stuff in there to fly out .

On a more serious note - Blower could have something stuck in it and the horn would probably be a loose connection.
The dust on the blower will NOT fly out sir. It needs to be removed, cleaned and fixed only by an AC mechanic or a similar kind at MASS. It is a specialised job but very simple!
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Old 11th February 2009, 13:39   #9
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Quote:
Originally Posted by headers View Post
The dust on the blower will NOT fly out sir. It needs to be removed, cleaned and fixed only by an AC mechanic or a similar kind at MASS. It is a specialised job but very simple!
Well i dont know about the will NOT - I've had stuff stuck in my gypsy blower before and with the blower on full blast and a few thumps on the dashboard is come straight out of the vents - amittedly making a mess in the cabin, but hey it worked ( of course the gypsy system is probably a bit simpler - but it still worked). And yeah before i forget ive even sorted out the same problem in my old 800 and merc before, myself - without having to go to any kind of authroised service garage - so i wouldnt call it a 'specilised job' - i would say its a case of, do you want to put in the effort?

-Just read your earlier post about dust on the blower motor - I guess thats not going to come out with a good thump and i was talking about something different. Appologies.

Last edited by Samir Taheer : 11th February 2009 at 13:55.
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Old 11th February 2009, 15:27   #10
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Quote:
Originally Posted by Samir Taheer View Post
Well i dont know about the will NOT - I've had stuff stuck in my gypsy blower before and with the blower on full blast and a few thumps on the dashboard is come straight out of the vents - amittedly making a mess in the cabin, but hey it worked ( of course the gypsy system is probably a bit simpler - but it still worked).
Might not work, swift rarely spits out the stuff. I had the same issue 2 weeks back, went off also mysteriously after a slightly long usage of fan. tried full speed blower, shifting circulation direction etc nothing happened / came out. Used to work well with old zen, esteem and 800 :P

On the other hand, keep the air re-circulation mode closed, swift has a bad habit of collecting all the twigs leaves on top of the firewall and the fan sucking it in.

My car issue was, i did a vacum cleaner blow of the area when the car was switched off, so the flap was open and something went it Lesson learnt switch ON and leave re-circulation closed when attempting such things in future. Same thing can happen when the car moves and the flap is in open position.
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Old 11th February 2009, 15:29   #11
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I had something similar in my Esteem ages ago. Poked around from the side and came up with a leaf!
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Old 12th February 2009, 11:09   #12
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Default Keep recirculation flap closed!

I've had the same problem in my M 800 where leaves used to enter the blower motor and create a low drone when the AC was switched on.

To avoid these problems is to keep the reciculation flap closed at all times. If you do need fresh air when you are running the AC, you can lower the window down once in a while for a minute of two to get fresh air into the vehicle.

This will ensure no leaves, twigs and other debris enter your AC system from the vents located outside near the bonnet.

Cheers,
gpa
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Old 12th February 2009, 11:31   #13
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Quote:
Originally Posted by Endofdayz View Post
...even the horns doesnt work sometimes...

...pick up has also dropped...
I hope whatever is obstructing the blower blades is not actually slowing it down. Please check if your airflow at a particular fan speed is the same as before or less. If it's less, don't use the fan till the issue is resolved, else the motor can burn out.
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Old 12th February 2009, 13:08   #14
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Try to avoid using the fresh air intake, that is the culprit for the dust & muck getting in the blower. I have mine sealed now.
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Old 16th February 2009, 11:24   #15
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Quote:
Originally Posted by esteem_lover View Post
Try to avoid using the fresh air intake, that is the culprit for the dust & muck getting in the blower. I have mine sealed now.
thanks for all the suggestion guys.. u guys rock. I setup an appointment with MASS and they indeed dropped to my place as this wierd problem started after the second service. i was shocked to see in the AC vent rats had cut and stuffed all sort of smoke packs, smoke ends, news papers clothes and what not. actually i never switch on the air circulation from outside. while service someone had selected that option. when i turned on the AC all this dust went and got collected on the fan chamber. they have advised to keep some rat kill under the hood and to never change the setting to outside circulation as bangy roads has lot of dust. i have changed my parking spot not.. lets see how things work out. thank you guys for all the suggestion. you guys rock.

and happy 5 anniversary T-bhp....
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