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AC Lines freezing up... Is there a quick fix?

 
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Old 09 Apr 2009, 06:17 pm
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Default AC Lines freezing up... Is there a quick fix?

I am reaching out to my fellow PTers..Okay my 2 ac lines were freezing up on our last trip we took. I need to know if there is a screen of filter in the lines that is causing this. I took it to a shop and they want to charge me $105 and some change to get the clog out. Does someone have a fix for this problem. My problem is , the 2 ac lines are freezing up. The ac still cools, but I want to get this fixed being is that I live in South Texas...
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Old 09 Apr 2009, 06:31 pm
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Default Re: AC Lines freezing up... Is there a quick fix?

Your problem is almost definitely the AC Pressure Cycling Switch. I had the same problem about a year ago. It was diagnosed by a professional and changed by them. I'd recommend you do the same. When the switch goes bad it gets so cold that it freezes up.

Now if they are right and there's some sort of clog in the system, you'll have to clear it first.

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Last edited by CREWZIN; 09 Apr 2009 at 06:35 pm.
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Old 09 Apr 2009, 08:32 pm
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Default Re: AC Lines freezing up... Is there a quick fix?

Low freon (or whatever they use) can cause icing, too. If it gets low enough, compressor won't come on.
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Old 09 Apr 2009, 09:04 pm
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Default Re: AC Lines freezing up... Is there a quick fix?

It's happening because either:

Clog in the line (pretty damn rare unless you just had the system serviced and it was evacced and not held under vacuum to get any moisture out) - this would reduce the flow through the system and cause it to freeze up,

A stuck OFF low pressure switch - normally the switch is cycled on or off every several minutes so that the low side pressure doesn't get TOO low (the lower the low side, the more the freon expands and the cooler the air gets) - causes frozen lines, can cause any moisture that somehow exists in the lines to freeze.

Low freon - causing it to get too cold (low side pressure as above). You would notice "short cycling" - i.e. the compressor turning off and on every few seconds, instead of every few minutes.

Check the freon low and high side pressures first. While connected - see if the system is getting below the low pressure switch cutoff. If the compressor is still engaged the low pressure switch is bad.

If its really a clog - you gotta have it evacced and refilled.
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Old 11 Apr 2009, 01:13 am
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Default Re: AC Lines freezing up... Is there a quick fix?

Thanks guys... By the way is this true on all year model PT's. I have an 06 Touring and I know Chrysler change alot of things on the 06.. Just want to make sure.. I'll check it out in the morning.. Thanks .
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Old 11 Apr 2009, 01:36 am
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Default Re: AC Lines freezing up... Is there a quick fix?

Quote:
Originally Posted by CREWZIN View Post
Your problem is almost definitely the AC Pressure Cycling Switch. I had the same problem about a year ago. It was diagnosed by a professional and changed by them. I'd recommend you do the same. When the switch goes bad it gets so cold that it freezes up.

Now if they are right and there's some sort of clog in the system, you'll have to clear it first.

This part when taken off would empty my system right... The name for this would be AC clutch cycling switch , found it , looking around for the best price..
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<---- Just installed.
2006 PT Cruiser Touring Non-Turbo
3 -Hyper White Thin Flexible 5mm LED Dome Lights from Oznium Damn they make a dif in the inside ,let me tell you the best led lights you can buy
1 -Hyper White 921 Superstar Bulbs from Autolumination
1 -Hyper White T10 Wedge 194 (Lic Pllate) Super White LED from Autolumination

Pioneer Head unit W/ HD & Satellite radio

2 - 7inch DVD/Headrests Monitors... dvd players built in the headrests
HID Lights 8000k 9006 for lows from xhidoutlet....
HID Slim 55w 6000K for high's from HIDGEEK.

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Old 15 Apr 2009, 09:56 pm
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Exclamation Re: AC Lines freezing up... Is there a quick fix?

Okay, I found the problem. Took it in and found that I have a leak , and I need an AC High Pressure Hose from the compressor to the condesor... Would anybody have on of those laying around...lol.. Anyway just thought I would let everybody know.. So know I am looking for one....If anyone happens to come across one give me a yell...
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<---- Just installed.
2006 PT Cruiser Touring Non-Turbo
3 -Hyper White Thin Flexible 5mm LED Dome Lights from Oznium Damn they make a dif in the inside ,let me tell you the best led lights you can buy
1 -Hyper White 921 Superstar Bulbs from Autolumination
1 -Hyper White T10 Wedge 194 (Lic Pllate) Super White LED from Autolumination

Pioneer Head unit W/ HD & Satellite radio

2 - 7inch DVD/Headrests Monitors... dvd players built in the headrests
HID Lights 8000k 9006 for lows from xhidoutlet....
HID Slim 55w 6000K for high's from HIDGEEK.

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Old 16 Apr 2009, 05:21 am
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Default Re: AC Lines freezing up... Is there a quick fix?

Check out RockAuto. they are one of the Vendors and Buyers part on this forum.

Here's an A/C hose for an 06 Touring, but I'd call them first to make sure it's the right part.

2006 CHRYSLER PT CRUISER TOURING A/C Refrigerant Hose
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Old 16 Apr 2009, 10:40 am
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Default Re: AC Lines freezing up... Is there a quick fix?

Thankx CREWZIN.. I called them and it happen to be the other line... I found some real good prices but all of them want me to send them the line so they view it to make me another one... The one company that that has it ,Mobile Air Parts in LAWRENCEVILLE, GA .
They want $64 for it.. May end up going with them.
__________________
<---- Just installed.
2006 PT Cruiser Touring Non-Turbo
3 -Hyper White Thin Flexible 5mm LED Dome Lights from Oznium Damn they make a dif in the inside ,let me tell you the best led lights you can buy
1 -Hyper White 921 Superstar Bulbs from Autolumination
1 -Hyper White T10 Wedge 194 (Lic Pllate) Super White LED from Autolumination

Pioneer Head unit W/ HD & Satellite radio

2 - 7inch DVD/Headrests Monitors... dvd players built in the headrests
HID Lights 8000k 9006 for lows from xhidoutlet....
HID Slim 55w 6000K for high's from HIDGEEK.

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Old 20 Apr 2009, 02:26 pm
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Default Re: AC Lines freezing up... Is there a quick fix?

Okay I got the PT fixed.... Turns out my cooling fan module may be going out accoring to the service repairmen... Not at all happy with this... Dealership wants $400 plus for this part... So now I am searching for part # 5179470AA just incase anyone has one laying around... Here i go again searching ...

WOW!!!!!! I just found the part @ RockAuto........ for hella cheap....... It is going to cost me 99.35 shipped.............
__________________
<---- Just installed.
2006 PT Cruiser Touring Non-Turbo
3 -Hyper White Thin Flexible 5mm LED Dome Lights from Oznium Damn they make a dif in the inside ,let me tell you the best led lights you can buy
1 -Hyper White 921 Superstar Bulbs from Autolumination
1 -Hyper White T10 Wedge 194 (Lic Pllate) Super White LED from Autolumination

Pioneer Head unit W/ HD & Satellite radio

2 - 7inch DVD/Headrests Monitors... dvd players built in the headrests
HID Lights 8000k 9006 for lows from xhidoutlet....
HID Slim 55w 6000K for high's from HIDGEEK.


Last edited by outfit; 20 Apr 2009 at 02:41 pm. Reason: found part @ RockAuto
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