A/C Evaporator Connections - Focus Fanatics
Focus Fanatics Ford Focus Forums
HomeContact UsAbout UsGalleryDiscussion ForumsMarketplace



Go Back   Focus Fanatics > Ford Focus Tech Discussions > General Technical Chat

General Technical Chat This section is for technical discussions relating to general maintenance, electrical issues, engine trouble, and recalls.

Search This Forum | Image Search | Advanced Search    
FocusFest Ford Focus Tire & Wheels FocusFanatics Merchandise

Reply
 
Thread Tools Display Modes
Old 08-22-2009, 10:17 PM   #1
reb162
Focus Rookie
 
Join Date: Jul 2009
Fan#: 66926
Location: Columbus, OH, OH
What I Drive: 2001 Red Focus SE

Posts: 22
FF Reputation: 1 reb162 Good Standing Member
Buy-Sell-Trade Rating: (0)
A/C Evaporator Connections

So I took on the job today of trying to fix my A/C leak. It has been a slow leak, often charging the system lasts about 3 months. However, I was tired of filling the system every three months not to mention possible environmental damage. The last time I filled, I put in UV dye to find the leak.

Never did see the UV dye anywhere...I think the leak is too small. So I decided to just replace all the o-rings and seals in the system and the accumulator as well.

Job was not too bad with the exception of three items.

1. Could not get my A/C line disconnect tool on the A/C Evaporator connections on the firewall. There simply is not enough space. Anyone ever done this and have any tips? Do not think these were leaking anyway.

2. Did not open and replace the orifice tube. I know I'm supposed too before I get yelled at. But with not being able to get the connections off the evaporator, I could not pull that section of tube/hose out to wrench the orifice tube apart. I'm pretty sure its impossible to wrench the tube apart while in the car due to space and required leverage. Any tips here?

3. I picked up a new accumulator at NAPA with the full intent of replacing the old one per the DIY and standard procedure. However, upon trying to reinstall, I discovered that the one from NAPA had a different tube interface for the line coming from the compressor, no way to make it seal. I was forced to just reuse the old one with new o rings, NAPA was closed. I think it was OK though cause the old was never exposed to atmosphere until I broke the system today and it was only for an hour or two. I put a vacuum on the system for a half hour to be sure all moisture was out.

Anyway, recharged the system including oil and she works like a charm. Now to see if she holds the pressure longer than three months (cross fingers).

Any tips on the evap tubes for future reference would be most welcome!

Oh, BTW...one additional tip. Double check to make sure all the tubes that are connected via the spring seal that requires the A/C connect tool to open are solidly reconnected..pull on them hard to be sure. If they are not fully seated, you will find out quickly after you get about a can of freon in...don't ask me how I know that


reb162 is offline  
    Reply With Quote
Sponsored Links
Advertisement
 
Old 08-25-2009, 08:50 AM   #2
reb162
Focus Rookie
 
Join Date: Jul 2009
Fan#: 66926
Location: Columbus, OH, OH
What I Drive: 2001 Red Focus SE

Posts: 22
FF Reputation: 1 reb162 Good Standing Member
Buy-Sell-Trade Rating: (0)
Does the lack of responses mean that no one has replaced the o rings on the a/c system, especially at the evaporator? Come on, I know someone else here had to have followed the advice fromt he A/C DIY.
reb162 is offline  
    Reply With Quote
Old 07-22-2011, 09:26 PM   #3
drumsk
Focus Rookie
 
Join Date: Jul 2011
Fan#: 88112
Location: staten island, NY
What I Drive: 2001 ford focus se

Posts: 2
FF Reputation: 1 drumsk Good Standing Member
Buy-Sell-Trade Rating: (0)
evaporator

I believe you have to remove the evaporator to change the o-rings I have the whole dashboard dismantled and am still trying to figure out how to get this bad boy out......
drumsk is offline  
    Reply With Quote
Old 07-26-2011, 01:37 AM   #4
jimr312
Focus Rookie
 
Join Date: Jul 2011
Fan#: 88207
Location: Yorktown, VA
What I Drive: 2000 Red SE

Posts: 1
FF Reputation: 1 jimr312 Good Standing Member
Buy-Sell-Trade Rating: (0)
I never could get the connections at the firewall either.

As far as the connection at the accumulator goes, I ran into that too. I had bought my accumulator online as it was cheaper. When it didn't fit I ran up to the local Advanced auto. Their listing for the accumulator said it required a hose replacement as well. Don't know why the design was changed, but the new hose and accumulator fit right together.
jimr312 is offline  
    Reply With Quote
Old 07-26-2011, 05:50 AM   #5
whynotthinkwhynot
Captain TMI
 
whynotthinkwhynot's Avatar
 
Join Date: Jan 2005
Fan#: 18416
Location: the armpit of TN, Memphis, TN
What I Drive: 05 ZXW; 02 Windstar; 13 C-Max SEL

Posts: 19,795
FF Reputation: 267 whynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Memberwhynotthinkwhynot Outstanding Standing Member
Buy-Sell-Trade Rating: (1)
I'm sorry I haven't had to work on my AC yet. That's why I wrote the article as General AC to dispel some AC myths/misunderstandings.

I hope someone can help you because I'm afraid that without replacing the orifice tube you're going to be disappointed in the performance of the system. This especially since you had a leak, and if you leak refrigerant you also leak oil. If you leak oil, you undoubtedly damage the compressor which means more metal shavings for the orifice tube to catch. The more shavings, the less refrigerant passes through to the evaporator, and the higher the pressures are on the high side.

The accumulator is most likely a bigger issue for you. The reason why the connection was different is that the return suction hose changed sometime in 01 YM, and the accumulator changed as well. I don't personally have a whole lot of information, but I do know that there is a change that requires the accumulator to be replaced with the suction line.

I wouldn't purchase the accumulator from NAPA again. Not because NAPA sells bad parts, but because there are plenty of parts available online for less cost- and you're going to need a hose and the accumulator at some point to do the job correctly. That increases the cost some. I found both parts online at RockAuto, and a short description of what build dates were affected by the change.

Now if you really want to save some money, then go start searching junkyards for Focis with door stickers that show dates later than yours and have different accumulators and suction hoses. There's nothing wrong with snatching a hose from a junkyard vehicle, but beware of that vehicle having a charge. It's much more difficult- and quite dangerous- to remove a hose while the system has pressure.

That's about all I can tell you. As far as the orifice tube goes, hopefully a Ford tech or an FF with experience can help you. If a flare nut wrench won't work, maybe 2 standard wrenches will work. I'd definitely soak the connection with penetrating lube even though you're dealing with 2 aluminum parts- aluminum oxide is a very tough opponent sometimes. Be sure when you are wrenching on it to pay attention to making sure the lines are lined up and not put in a bind by you working on it. That rudimentary stuff is about all I can offer.
__________________
Be eclectic.
---The Complete How-To Archive--

Moderating everything now, let me know if I can help.

Quote:
Originally Posted by the user formerly known as ZX3_Chick View Post
You're special aren't you.
whynotthinkwhynot is offline  
    Reply With Quote
Old 08-26-2011, 07:39 PM   #6
rgonyer
Focus Enthusiast
 
Join Date: Mar 2004
Fan#: 5268
Location: Iowa, United States
What I Drive: 2013 Tangerine Scream Focus ST3

Posts: 385
FF Reputation: 1 rgonyer Good Standing Member
Buy-Sell-Trade Rating: (0)
Gonna bump this one - anyone know how to remove those connections? I have a bad seal between my evaporator/hvac box and the firewall, and I need to remove the box (and the evaporator) from the car to replace that seal. The dash is already out.
rgonyer is offline  
    Reply With Quote
Reply

Bookmarks & Social Networks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
bouncing idle then dies with a/c Glowboi87 General Technical Chat 14 09-15-2013 12:17 PM
A/C not cycling is this normal? januszk General Technical Chat 31 05-22-2009 08:15 PM
A/C oddities Jholewin General Technical Chat 0 07-20-2007 10:18 AM
DTC Codes (Detailed Descriptions) S2 General Technical Chat 13 12-11-2006 11:06 AM
A/C Cutout During gear change varian General Technical Chat 3 08-24-2006 04:29 PM


All times are GMT -5. The time now is 10:51 PM.


Copyright 2002-2014 FocusFanatics.com. All Rights Reserved : Terms of Use : Privacy Policy : Advertise Information : Site Map

Focus Fanatics Ford Focus Forum offers many fun ways for you to engage with other Ford Focus Owners from across the world. Whether it be about the aftermarket performance modifications, technical how-to's, European tuned suspension or awesome fuel economy similar to the Acura TLX. You can find all Ford Focus related information here. Join our Ford Focus discussion forums and chat with local Focus enthusiasts in your area.