Scorpio - Poor air flow from AC vents

sashb · 26th December 2008, 11:23

I am getting extremely poor air flow through the air vents inside the car. At setting 1 the flow is negligible. At 2/3/4 setting it is more but accompanied with lot of noise.

I recently replaced the air filter.

Anybody faced similar issues? Any suggestions?

Thanks,
Sash

prabhuav · 26th December 2008, 12:22

Check your vent controls. It might be stuck at closed.
Get your ventilation piping checked for leaks.

Are you having the same issue in recirculating mode?

Vijay

SirAlec · 27th December 2008, 02:02

what has air filter got to with HVAC.

When was the vehicle purchased? i mean whats the model year.

Sankar · 27th December 2008, 07:22

Quote:

Originally Posted by SirAlec

what has air filter got to with HVAC.

He must've replaced the HVAC air fiter, some cars do come with them.

wanderernomad · 27th December 2008, 21:28

A common problem(?, I ahve not faced it but 3 of my friends have) with Scorpios. Get the vents opened and cleaned. The problem will go.

anupmathur · 27th December 2008, 21:56

Quote:

Originally Posted by wanderernomad

A common problem(?, I ahve not faced it but 3 of my friends have) with Scorpios. Get the vents opened and cleaned. The problem will go.

Hey! What are we talking about here?!
What on earth is that filter supposed to do then?

I suspect this is the result of fresh air intake. ?? Does the fresh air go through the filter? I don't think so.
Somebody please enlighten!

wanderernomad · 27th December 2008, 22:44

Yes fresh intake clogs the filter and this in turn causes reduced air flow. Where is the confusion?

raj_5004 · 27th December 2008, 23:02

this is the reason not all cars comes with HVAC air filter. even in fresh air intake mode, it passes through the filter. after use in dusty conditions, you are supposed to clean the filter, else it gets choked resulting in low air flow from the vents.

but since sashb has changed the filter, i think it has more to do with the vent closing mechanism. it is always advisable to use the AC in re-circulation mode, once in a week you can switch it to fresh air intake to allow fresh air inside the cabin.

anupmathur · 28th December 2008, 08:26

Quote:

Originally Posted by wanderernomad

Yes fresh intake clogs the filter and this in turn causes reduced air flow. Where is the confusion?

If the filter is doing its job, how do the vents get clogged?

akshay4587 · 28th December 2008, 08:40

I had this problem in my Accent.
the blower would make a lot of noise and would give very less air.

Problem was sponge stuck in the filter.

wanderernomad · 29th December 2008, 14:44

@anup: lolz mate I think you took it too literally. What I meant by getting the vents opened was to get the entire delivery system cleaned by reaching inside the vents. And for that you need to open them, mate.

anupmathur · 29th December 2008, 16:38

Quote:

Originally Posted by wanderernomad

@anup: lolz mate I think you took it too literally. What I meant by getting the vents opened was to get the entire delivery system cleaned by reaching inside the vents. And for that you need to open them, mate.

Wanderer, it's not about taking it too literally. Think about it. If the filter is doing it's job, there should be no reason for copious quantities of dust/dirt to go downstream and clog the vents.?
Am I missing something?

m-hawk · 29th December 2008, 17:19

Quote:

Originally Posted by Sankar

He must've replaced the HVAC air fiter, some cars do come with them.

Can you tell us where to look for the A/C filter ?
Thanx

anupmathur · 29th December 2008, 17:37

Quote:

Originally Posted by m-hawk

Can you tell us where to look for the A/C filter ?
Thanx

Open the glovebox all the way down by pressing the sides of the box to free the two stops. Once it is fully opened till floor level, unhinge it. Keep it aside.
Behind where the glovebox normally sits, you'll see a black rectangular 'door'/cover. Prise it open. Inside is the filter cartridge, which you can simply slide out.

wanderernomad · 30th December 2008, 12:41

The route is through the filter and it gets clogged reducing airflow. That is the problem. Plus I have seen a lot of quantities getting accumulated downstream even when the filter itself is clogged to its gills. How beats me too. Maybe the force of air does get a few to escape the filter as it gets clogged? Maybe, but I am not sure.

26th December 2008, 11:23	#1
sashb Newbie Join Date: Sep 2008 Location: Bangalore Posts: 6 Thanked: Once	Scorpio - Poor air flow from AC vents I am getting extremely poor air flow through the air vents inside the car. At setting 1 the flow is negligible. At 2/3/4 setting it is more but accompanied with lot of noise. I recently replaced the air filter. Anybody faced similar issues? Any suggestions? Thanks, Sash
	() Thanks

26th December 2008, 12:22	#2
prabhuav BHPian Join Date: Jun 2007 Location: Bangalore Posts: 672 Thanked: 128 Times View My Garage	Check your vent controls. It might be stuck at closed. Get your ventilation piping checked for leaks. Are you having the same issue in recirculating mode? Vijay
	() Thanks

27th December 2008, 02:02	#3
SirAlec Senior - BHPian Join Date: Sep 2006 Location: zxc Posts: 3,393 Thanked: 726 Times	what has air filter got to with HVAC. When was the vehicle purchased? i mean whats the model year.
	() Thanks

27th December 2008, 21:28	#5
wanderernomad Senior - BHPian Join Date: Jul 2007 Location: Chandigarh Posts: 2,534 Thanked: 1,276 Times View My Garage	A common problem(?, I ahve not faced it but 3 of my friends have) with Scorpios. Get the vents opened and cleaned. The problem will go.
	() Thanks

27th December 2008, 22:44	#7
wanderernomad Senior - BHPian Join Date: Jul 2007 Location: Chandigarh Posts: 2,534 Thanked: 1,276 Times View My Garage	Yes fresh intake clogs the filter and this in turn causes reduced air flow. Where is the confusion?
	() Thanks

27th December 2008, 23:02	#8
raj_5004 Senior - BHPian Join Date: Jan 2008 Location: Dubai/Mumbai Posts: 5,238 Thanked: 3,139 Times	this is the reason not all cars comes with HVAC air filter. even in fresh air intake mode, it passes through the filter. after use in dusty conditions, you are supposed to clean the filter, else it gets choked resulting in low air flow from the vents. but since sashb has changed the filter, i think it has more to do with the vent closing mechanism. it is always advisable to use the AC in re-circulation mode, once in a week you can switch it to fresh air intake to allow fresh air inside the cabin.
	() Thanks

28th December 2008, 08:40	#10
akshay4587 Senior - BHPian Join Date: Mar 2005 Location: Chandigarh/Mohali/Ambala Cantt Posts: 4,151 Thanked: 4,525 Times View My Garage	I had this problem in my Accent. the blower would make a lot of noise and would give very less air. Problem was sponge stuck in the filter.
	() Thanks

29th December 2008, 14:44	#11
wanderernomad Senior - BHPian Join Date: Jul 2007 Location: Chandigarh Posts: 2,534 Thanked: 1,276 Times View My Garage	@anup: lolz mate I think you took it too literally. What I meant by getting the vents opened was to get the entire delivery system cleaned by reaching inside the vents. And for that you need to open them, mate.
	() Thanks

30th December 2008, 12:41	#15
wanderernomad Senior - BHPian Join Date: Jul 2007 Location: Chandigarh Posts: 2,534 Thanked: 1,276 Times View My Garage	The route is through the filter and it gets clogged reducing airflow. That is the problem. Plus I have seen a lot of quantities getting accumulated downstream even when the filter itself is clogged to its gills. How beats me too. Maybe the force of air does get a few to escape the filter as it gets clogged? Maybe, but I am not sure.
	() Thanks