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Old 17th March 2009, 10:08   #16
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The gas would have accumulated some more moisture which was not there originally
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Old 17th March 2009, 10:23   #17
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I always go the a Car AC Specialist and never to an *.A.S.S. Similarly for wheel balancing and alignment again I go to a specialist. There are things which are done better by these chaps.
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Old 17th March 2009, 11:52   #18
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Quote:
Originally Posted by anupmathur View Post
Uday, have you had the gas topped up or compressor oil topped up?
Moisture gets into an AC system through these routes.
Once there is the slightest bit of moisture, it can cause partial icing up in the expansion valve. This in turn can create a negative suction pressure in the compressor at times, for short durations. This allows atmospheric air to be sucked in, carrying more moisture. The problem gets aggravated.

Anyhow, does it matter? You've described a problem. It is almost certainly moisture related.
That's the best anyone can tell you sitting miles away!
you are right, compressor oil & gas were changed. My a/c compressor had under gone major repair as it was making a lot of noise when switch on. After the repair cooling has increased.
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Old 17th March 2009, 12:58   #19
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How important is it to change compressor oil for a weak AC ?
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Old 17th March 2009, 13:42   #20
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Quote:
Originally Posted by udaydesai View Post
you are right, compressor oil & gas were changed. My a/c compressor had under gone major repair as it was making a lot of noise when switch on. After the repair cooling has increased.
So, in that case you have no problem!

Why are you wasting our time?

Quote:
Originally Posted by gaurav.28ch View Post
How important is it to change compressor oil for a weak AC ?
Gaurav, AC compressor oil does not require to be renewed for many years!
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Old 17th March 2009, 17:32   #21
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Quote:
Originally Posted by anupmathur View Post
So, in that case you have no problem!

Why are you wasting our time?



Gaurav, AC compressor oil does not require to be renewed for many years!
compressor was repared 8 months back. Never had problem for many long drives. It now that it is giving me problem.
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Old 6th April 2009, 15:07   #22
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Hi All gurus

Following this forum for a couple of months and I was searching for a post which mentions the AC problem of Zen !! well I am from Blore and my car is in Calicut where its been used by my family, a 2001 LX Carb, 60+K Kms done.

We have a problem with the AC of my car .
1 - The blower hardly blows the cool air inside, no air is blowed in at the lowest blower setting and always we have to put it in the highest position !!

2- Now a days the air that is blowed in is not cold, though i put the slider in the 'blue' area !

We had done an overhauling of AC almost 2 years back. Changed the gas, but i dont remember if nything was done to the blower.

Gurus need your help to get this resolved !!

@ Mods - Hope i have put it in the correct forum, if not please keep it in the correct one
Cheeeeeersss!!
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Old 6th April 2009, 15:59   #23
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I'm far from being a guru, but it sounds like all you need is a gas refill again!

I'm assuming the compressor comes on when the a/c is switched on, of course.
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Old 6th April 2009, 16:19   #24
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Quote:
Originally Posted by rejoycjohn View Post

1 - The blower hardly blows the cool air inside, no air is blowed in at the lowest blower setting and always we have to put it in the highest position !!

2- Now a days the air that is blowed in is not cold, though i put the slider in the 'blue' area !

We had done an overhauling of AC almost 2 years back. Changed the gas, but i dont remember if nything was done to the blower.
1.Get someone to sit in the car,run the ac and press the accelerator slightly to raise the engine rpm.
2.Open the hood
3.Look for an aluminimum pipe running from the engine compartment firewall to somewhere under the battery area - touch it and see if it is chill.This is the ac suction pipe.

If this pipe is not chill,then your ac needs a service.

Also looking at the blower not doing a good job,suggest you get the ac serviced from a good knowledgeable person.(Many AC mecahnics I know just overcharge and do nothing)
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Old 6th April 2009, 17:07   #25
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Quote:
Originally Posted by vigsom View Post
1.Get someone to sit in the car,run the ac and press the accelerator slightly to raise the engine rpm.
2.Open the hood
3.Look for an aluminimum pipe running from the engine compartment firewall to somewhere under the battery area - touch it and see if it is chill.
Also be careful not to touch the wrong engine part and burn your hand!
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Old 6th April 2009, 17:36   #26
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Quote:
Originally Posted by rejoycjohn View Post
We have a problem with the AC of my car .
1 - The blower hardly blows the cool air inside, no air is blowed in at the lowest blower setting and always we have to put it in the highest position !!
You need to have the evaporator coil fins cleaned. These are probably choked with dust/dirt.
The evaporator is located in the dashboard, so dismantling of the dash will be required.
External cleaning with compressed air might work. If the coil is removed from place all the gas will be lost and the system will need to be charged again. Try to avoid such removal of the coil from place; ie. first go for an in-situ cleaning job.
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Old 7th April 2009, 00:51   #27
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Quote:
Originally Posted by vigsom View Post
1.Get someone to sit in the car,run the ac and press the accelerator slightly to raise the engine rpm.
2.Open the hood
3.Look for an aluminimum pipe running from the engine compartment firewall to somewhere under the battery area - touch it and see if it is chill.This is the ac suction pipe.

If this pipe is not chill,then your ac needs a service.

Also looking at the blower not doing a good job,suggest you get the ac serviced from a good knowledgeable person.(Many AC mecahnics I know just overcharge and do nothing)
You are right to some point. But instead of touching pipe, just look near the small glass window above the dryer. If it has white bubbles, you need a gas refill.

My advice will be to do a complete AC servcing, which will take half a day. I guess this hasn't been serviced for past 8 years except for refill.
1. Opening of dashboard and hence the cooling coil, and cleaning.
2. Flushing of condensor and dryer.
3. cleaning and oiling blower fan, various relays
4. checking tension and condition of belt
5. cheking compressor and its clutch. flusing old oil.
6. replacing O rings
7. using WD 40 on fan regulators and relays.

Whole thing will set you back by Rs.800 for gas recharge and rs.1000/- for labour. Plus rs. 200 or so for various small parts like o rings, referigerant oil etc. This is not a MASS rate.
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Old 7th April 2009, 01:32   #28
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Hey,where can i find Car AC Specialist ? Please let me know in New delhi.I am fed up with MSS.Please tell me the place to get the complete AC care!!!
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Old 7th April 2009, 11:57   #29
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Thanks all ...well not being very formal ..but kinda thrilled to see replies and that too very specific...

@Perakath , yes the refilling had done then last time which we did the servicing .. but i remember even the performance wasnt that promising even immediately after that .. so atleast this time we need to go a bit deeper !!

@vigsom:- Yes i should try doing that ..

@anupmathur:- hmm yea the insitu thing was done that time , may be it can be repeated ..

@SirAlec:- Thanks for all the step by step that need to be done for my AC problem ...
But questions come to my mind as .
1) how complicated is the cleaning of the cooling pipe ( inside the dash )??
We had done passing the compressed air into the pipe and then cleaning it then ,,but as you said cleaning it by dismantling the whole thing would be better ..provided its something allowed ( meaning the mechanic would not study doing things in my car )

2 ) does a regular AC service takes care of all the things that you said ???
(points 2 to 8 )

3) the quote that you said seems to be reasonable infact makes me think that i had spend a lot more for my previous service /...

Goin for MSS ..well personally I dunno how dedicated those folks would be in getting my AC back to work ..unless they see me as a prospectus buyer of any of their new cars ..
What would you folks propose ??

I did my previous service in Calicut ..its a place on the pocket road from Nadakkavu to Mini by-pass ( Eranhipalam )
I am not sure if how many are from calicut here to propose a Veteran AC mechanic ..
Hopes still stay ..:-)

cheeeeers!!
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Old 7th April 2009, 14:00   #30
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Quote:
Originally Posted by binoyjude View Post
Hey,where can i find Car AC Specialist ? Please let me know in New delhi.I am fed up with MSS.Please tell me the place to get the complete AC care!!!
which area of delhi. actually if in north west area you can visit naharpur auto market, pitampura.

Quote:
Originally Posted by rejoycjohn View Post
We had done passing the compressed air into the pipe and then cleaning it then ,,but as you said cleaning it by dismantling the whole thing would be better ..provided its something allowed ( meaning the mechanic would not study doing things in my car )

2 ) does a regular AC service takes care of all the things that you said ???
(points 2 to 8 )

3) the quote that you said seems to be reasonable infact makes me think that i had spend a lot more for my previous service /...

Goin for MSS ..well personally I dunno how dedicated those folks would be in getting my AC back to work ..unless they see me as a prospectus buyer of any of their new cars ..
What would you folks propose ??

I did my previous service in Calicut ..its a place on the pocket road from Nadakkavu to Mini by-pass ( Eranhipalam )
I am not sure if how many are from calicut here to propose a Veteran AC mechanic ..
Hopes still stay ..:-)

cheeeeers!!
actually pipes are always clean as it runs compressed gas and oil.

its the fins that needs to be clean.

don't have any contacts down under. Sorry!
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