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31-10-2013, 12:37 AM | #1 | ||
Regular Member
Join Date: Feb 2011
Location: Newcastle
Posts: 234
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My air conditioning system does just fine, 95% of the time. But on really hot days it just fails to cool. It will start to cool and after a while it will stop cooling. Dunno what causes this.
Anyway, I figure the system is due for a service. So, can members please let me know... 1) what may cause the problem above, and 2) what factors do I need to consider when negotiating for a professional system service? Thanks heaps
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-- Ford Fairmont Ghia AU2, 3/2001, Tickford 4.0 I6, 12v SOHC VCT MPFI, sedan with IRS standard suspension -- ----- ANJ is a practical beast, but still a lady, that I want to keep alive until at least2021 ----- -------- Preventative Maintenance Policy -------- |
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31-10-2013, 12:50 AM | #2 | ||
BEN
Join Date: Jun 2011
Location: Perth WA
Posts: 4,875
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What sort of ks on it?
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My Thread. The new whip: 2014 FGX XR8 Auto in victory gold. Mods : BMC air filter, 1500cc injectors, Walbro 485, 58mm kpm snout, kpm intercooler, 35% front and 20% rear tint, pedders supercar coilovers, whiteline sway bars, Phillips HIDs, lenso d1r wheels. 331rwkw. 12.7 sec stock as a rock with a passenger. Now with 620rwhp ready to run the 10 built zf, built tailshaft, corn juice all to come. The old rig: 2008 FG XR8 Auto in dash green with a tonne of mods to make 311rwkw. |
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31-10-2013, 01:58 AM | #3 | ||
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Join Date: Feb 2011
Location: Newcastle
Posts: 234
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kempy, I got it at 91000 and it has now done 155000, all relatively easy miles and no extreme heat conditions.
I don't have any idea of previous aircon service history, unfortunately. I intend keeping car for another 8 years so not too concerned about investing $$$ in service of aircon.
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-- Ford Fairmont Ghia AU2, 3/2001, Tickford 4.0 I6, 12v SOHC VCT MPFI, sedan with IRS standard suspension -- ----- ANJ is a practical beast, but still a lady, that I want to keep alive until at least2021 ----- -------- Preventative Maintenance Policy -------- Last edited by peterljohnson55; 31-10-2013 at 01:59 AM. Reason: cos i made a mistake haha |
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31-10-2013, 08:56 AM | #4 | |||
Back to Le Frenchy
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
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Sounds like it's either low on gas or the compressor is failing.
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31-10-2013, 09:42 AM | #5 | ||
BEN
Join Date: Jun 2011
Location: Perth WA
Posts: 4,875
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Couple of things listed in order of likely hood.
1. Low on gas small leak somewhere 2. One or more of the fans isn't working correctly causing over pressure and the aircon to cut out. 3. Compressor lazy/worn out 4. Partial blocked orfice tube.
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My Thread. The new whip: 2014 FGX XR8 Auto in victory gold. Mods : BMC air filter, 1500cc injectors, Walbro 485, 58mm kpm snout, kpm intercooler, 35% front and 20% rear tint, pedders supercar coilovers, whiteline sway bars, Phillips HIDs, lenso d1r wheels. 331rwkw. 12.7 sec stock as a rock with a passenger. Now with 620rwhp ready to run the 10 built zf, built tailshaft, corn juice all to come. The old rig: 2008 FG XR8 Auto in dash green with a tonne of mods to make 311rwkw. |
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31-10-2013, 09:41 PM | #6 | ||
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Join Date: Feb 2012
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01-11-2013, 08:02 AM | #7 | |||
Back to Le Frenchy
Join Date: Feb 2005
Location: Back home.....
Posts: 13,346
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Just be careful when clearing this tube as what comes out of it does not taste good at all.
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07 Renault Sport Megane F1 Team R26 #1397
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01-11-2013, 10:47 AM | #8 | ||
CNC fixer guy
Join Date: Sep 2006
Location: Melbourne Vic
Posts: 609
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All good points above,
Depends also if the compressor is still engaging (clicking in and out in cycle) or not when the cooling performance drops. If low on gas it should stop the compressor coming on. If you have the interior fan on full and the coldest setting, the compressor should be running almost constantly. Otherwise perhaps the heater tap is stuck open or the blend door is on the heater side? (engine warming up and then hot water comes through heater). Good luck with that, and remember to use the aircon regularly even in winter, at least once a week. |
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10-11-2013, 02:34 AM | #9 | ||
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Join Date: Feb 2011
Location: Newcastle
Posts: 234
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Thank you guys for your advice. At least it doesn't seem as tho the unit is stuffed, just needs some attention.
IF I do find something conclusive I will come back and let you know the result. Thanks and regards, Peter.
__________________
~~~~~~~~~
-- Ford Fairmont Ghia AU2, 3/2001, Tickford 4.0 I6, 12v SOHC VCT MPFI, sedan with IRS standard suspension -- ----- ANJ is a practical beast, but still a lady, that I want to keep alive until at least2021 ----- -------- Preventative Maintenance Policy -------- |
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12-11-2013, 08:41 PM | #10 | ||
Ford Power To The People
Join Date: Jan 2006
Posts: 242
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Hi I posted a problem with my AU2 XR8 last year like the problem you stated in your first post. The A/C worked then cut out. The compressor would then not engage pressing the A/C button on and off until I turned off the engine then turned it back on. It would then work again for about 5 to 10 minutes then cut out and not come back on again.
Took it to many a/c places and they could not find the problem due to it being mainly an intermittent problem, and sometimes the thing just dammed worked when I took the car back to them. I could not work it out. After spending many dollars the thing is still not fixed. But I'll be ****ed I discovered that if the fan is on the highest setting (setting Number 4) the a/c works all the time and does not cut out. But if the fan setting is on like number 1 or 2, the problem starts again. So these days the fan stays on full blast while the a/c is on. It is a bit noisy because the fan is running full blast but atleast its cold in the car on those hot days. Beats the hell out of me why it does it, but maybe try this and see if its like mine. |
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13-11-2013, 03:08 AM | #11 | |||
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Join Date: Feb 2011
Location: Newcastle
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Quote:
Thanks again. Peter.
__________________
~~~~~~~~~
-- Ford Fairmont Ghia AU2, 3/2001, Tickford 4.0 I6, 12v SOHC VCT MPFI, sedan with IRS standard suspension -- ----- ANJ is a practical beast, but still a lady, that I want to keep alive until at least2021 ----- -------- Preventative Maintenance Policy -------- |
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13-11-2013, 07:04 PM | #12 | |||
Ford Power To The People
Join Date: Jan 2006
Posts: 242
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Quote:
I don't think I have tried it once the a/c has failed to turn engine back on and try it at full blast. I just discovered one day that that the air con was working all the time when the fan was full blast. So I just always know that when I want a/c its just the way it has to be. Yes, I have tried it at low speeds since and it still has the problem. I guess now its to late to go back to the a/c shops to tell them as its been over a year. I know how you feel. I was this close to selling the car because of it. Sounds stupid but it annoyed me that much. Just see if its what I described. As to a fix I can't help you there. |
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13-11-2013, 08:01 AM | #13 | |||
CNC fixer guy
Join Date: Sep 2006
Location: Melbourne Vic
Posts: 609
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Quote:
May not have enough airflow over the evap at low fan speed and possibly needs a.clean? |
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13-11-2013, 07:09 PM | #14 | ||
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13-11-2013, 08:43 PM | #15 | ||
Regular Member
Join Date: Feb 2011
Location: Newcastle
Posts: 234
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__________________
~~~~~~~~~
-- Ford Fairmont Ghia AU2, 3/2001, Tickford 4.0 I6, 12v SOHC VCT MPFI, sedan with IRS standard suspension -- ----- ANJ is a practical beast, but still a lady, that I want to keep alive until at least2021 ----- -------- Preventative Maintenance Policy -------- |
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13-11-2013, 04:02 PM | #16 | ||
FG XR50 TURBO
Join Date: Apr 2009
Location: reservoir
Posts: 4,558
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you could try and reset the blend door?? if that helps
see the link for more detail cheers dean http://www.fordmods.com/documents.php?d=9 |
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13-11-2013, 08:50 PM | #17 | ||
BEN
Join Date: Jun 2011
Location: Perth WA
Posts: 4,875
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I think you really need to take it into someone who knows what there doing.
__________________
My Thread. The new whip: 2014 FGX XR8 Auto in victory gold. Mods : BMC air filter, 1500cc injectors, Walbro 485, 58mm kpm snout, kpm intercooler, 35% front and 20% rear tint, pedders supercar coilovers, whiteline sway bars, Phillips HIDs, lenso d1r wheels. 331rwkw. 12.7 sec stock as a rock with a passenger. Now with 620rwhp ready to run the 10 built zf, built tailshaft, corn juice all to come. The old rig: 2008 FG XR8 Auto in dash green with a tonne of mods to make 311rwkw. |
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