Recent Topics
2009 Taurus strut mount noise
by terry274
06/24/18 04:38 PM
A3/B3 vs A3/B4, big difference or irrelevant?
by FordCapriDriver
06/24/18 03:36 PM
2003 Honda power steering problem
by hogpops
06/24/18 03:29 PM
Public Service Announcement: Flush Your HW Heater
by gathermewool
06/24/18 03:25 PM
Fellow 2AZ-FE toyota owners: what oil are you usin
by car51
06/24/18 03:21 PM
Castrol 0W40 vs 5W40??
by Realfine69
06/24/18 03:02 PM
Paint impurities on a new car
by Quattro Pete
06/24/18 02:49 PM
2014 Ram wheel FIT on a 2005 Ram?
by SumpChump
06/24/18 02:41 PM
Do people buy from telemarketers?
by Chris142
06/24/18 02:06 PM
TGMO 0W20, 8100km/5mo, 2013 Lexus GS350AWD 118K KM
by David_Corbett
06/24/18 01:54 PM
Sonoma Raceway
by Warstud
06/24/18 01:51 PM
Zipcode error
by aquariuscsm
06/24/18 01:36 PM
NHRA drag racing Racing question??
by daddi
06/24/18 01:33 PM
Milesyn 5w30 5 gal pails $50.94 w/prime
by Samrsnow
06/24/18 01:20 PM
Removing Broken Bathtub Drain
by Warstud
06/24/18 01:15 PM
Buffer Pads
by TheLawnRanger
06/24/18 01:10 PM
Recommend an oil to me... Pennz, M1, Castrol...?
by chinee
06/24/18 12:39 PM
Filter for Hydro Gear ZT2800 - Toyota???
by Lancruza
06/24/18 12:39 PM
Motul 5W30, 3000KM/12 mo, 06 Acura RSX-S 161K KM
by lemaitrix
06/24/18 12:38 PM
DeWalt dcf887b 3spd impact driver
by JC1
06/24/18 12:34 PM
Newest Members
crrider, EdDmax, 2018matto, Lancruza, IanSampson
65312 Registered Users
Who's Online
92 registered (55hambone, aquariuscsm, 93cruiser, 2018matto, 97prizm, Altima2, 5 invisible), 1624 Guests and 42 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
65312 Members
67 Forums
285927 Topics
4771565 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Page 1 of 2 1 2 >
Topic Options
#4470877 - 07/26/17 11:18 AM A/C Fitting Leaking Oil
Rhymingmechanic Offline


Registered: 08/13/04
Posts: 1328
Loc: VA
2001 Chevy Silverado. I had the hood open yesterday and noticed oil on the line in the first photo. It seemed to be coming from the valve under the nearest black cap. I took off the cap today after a drive and saw clear oil bubbling out of the valve. The liquid puddled on the inner fender in photo 2 is condensation, but a little oil seems to have gotten down there as well. The A/C system has never been worked on, and I haven't noticed any recent changes in cooling performance (yet). I have three questions: First, what is this part called? Second, can I fix it with a new part and a wrench, or will the refrigerant leak out? In that case, I would need to take it to somebody with the right equipment. If it comes to that, what will the job include? Thanks in advance--a lot of you have a lot more experience and know-how with A/C than I do.

Top
#4470883 - 07/26/17 11:24 AM Re: A/C Fitting Leaking Oil [Re: Rhymingmechanic]
Canadastang Offline


Registered: 12/08/15
Posts: 261
Loc: Ontario Canada
The schrader valve can be replaced quite easily...but you'll need to evacuate the system first and then recharge it.

If you deal with a good shop, have them check over the whole system for leaks, then evacuate it, replace the valve and whatever else is leaking and have it vacuumed, then recharged.

Shouldn't be too expensive.

Top
#4470898 - 07/26/17 11:32 AM Re: A/C Fitting Leaking Oil [Re: Canadastang]
440Magnum Offline


Registered: 02/01/09
Posts: 8754
Loc: Texas
Originally Posted By: Canadastang
The schrader valve can be replaced quite easily...but you'll need to evacuate the system first and then recharge it.

If you deal with a good shop, have them check over the whole system for leaks, then evacuate it, replace the valve and whatever else is leaking and have it vacuumed, then recharged.

Shouldn't be too expensive.


Likely what he said... but I would first get a schrader valve tool and simply try tightening the valve. It might be leaking around the valve rather than through the valve, and that could save you a lot of headache!

https://shop.advanceautoparts.com/p/milt...ECABEgJ5qvD_BwE
_________________________
'66 Dodge Polara & '69 Dodge Coronet R/T both 440/727
'08 Ram 1500 4.7/545RFE
'12 Challenger SRT8 392/6-speed
'99 XJ 4x4 4.0/AX15, '14 WK2 4x4 3.6/8HP

Top
#4470900 - 07/26/17 11:32 AM Re: A/C Fitting Leaking Oil [Re: Rhymingmechanic]
MarkM66 Offline


Registered: 10/19/10
Posts: 1544
Loc: stl
You can replace the schrader valve without loosing refrigerant. Just need the tool to do so.

https://www.amazon.com/Robinair-18560-Va...ve+removal+tool

https://www.youtube.com/watch?v=ES0NFPH4eJg

Top
#4470945 - 07/26/17 12:05 PM Re: A/C Fitting Leaking Oil [Re: MarkM66]
28oz Offline


Registered: 04/20/17
Posts: 344
Loc: Utah, USA
Originally Posted By: MarkM66
You can replace the schrader valve without loosing refrigerant. Just need the tool to do so.

https://www.amazon.com/Robinair-18560-Va...ve+removal+tool

https://www.youtube.com/watch?v=ES0NFPH4eJg


What a clever tool! Thanks for sharing that!
_________________________
-----------------
1990 Nissan 300zx - Castrol Edge Euro 0W-40
2004 Nissan Quest - Pennzoil Platinum Euro 0W-40
2003 Ford Excursion 7.3 PSD - Mobil 1 TDT 5w-40

Top
#4470988 - 07/26/17 12:39 PM Re: A/C Fitting Leaking Oil [Re: Rhymingmechanic]
Kibitoshin Online   content


Registered: 04/19/16
Posts: 698
Loc: Kaiōshinkai
The high side does not use a schrader valve. It uses a ball type valve where you need to replace the whole fitting if it leaks. Bring it to a shop and have them change it out since the refrigerant needs to be evac'd. Have them change out the low side schrader valve too.
_________________________
Shin Gekiretsu Shin'ou'hou
01 Toyota Tundra 2WD V8 4.7L - 170k mi
02 Chevy Silverado C1500 V8 5.3L 154k mi

Top
#4470991 - 07/26/17 12:41 PM Re: A/C Fitting Leaking Oil [Re: Kibitoshin]
cpayne5 Offline


Registered: 12/28/05
Posts: 605
Loc: Virginia
Originally Posted By: Kibitoshin
The high side does not use a schrader valve. It uses a ball type valve where you need to replace the whole fitting if it leaks. Bring it to a shop and have them change it out since the refrigerant needs to be evac'd. Have them change out the low side schrader valve too.


Yep, the fitting needs to be replaced.
https://www.napaonline.com/en/p/NDP7305607

Top
#4470997 - 07/26/17 12:56 PM Re: A/C Fitting Leaking Oil [Re: Rhymingmechanic]
Rhymingmechanic Offline


Registered: 08/13/04
Posts: 1328
Loc: VA
Thanks for the replies so far. I expected to see a schrader valve under that cap--But there's actually just what looks like a piece of rubber. The back fitting does have a schrader, but not this one. Another video on the page MarkM66 linked shows somebody repairing the back valve on a Silverado.

Could there be a schrader valve under the fitting in my second photo? *EDIT* The last 2 posts came in while I was typing. Thanks for clarifying.


Edited by Rhymingmechanic (07/26/17 12:57 PM)

Top
#4471018 - 07/26/17 01:22 PM Re: A/C Fitting Leaking Oil [Re: Rhymingmechanic]
cpayne5 Offline


Registered: 12/28/05
Posts: 605
Loc: Virginia
Just for reference, that rear fitting is the low side service port and the one leaking is the high side service port. Between the high side and where those two pipes come together (nuts) is where your orifice tube is located.


Edited by cpayne5 (07/26/17 01:22 PM)

Top
#4471039 - 07/26/17 01:39 PM Re: A/C Fitting Leaking Oil [Re: Kibitoshin]
Linctex Offline


Registered: 12/31/16
Posts: 6178
Loc: Waco, TX
Originally Posted By: Kibitoshin
The high side does not use a schrader valve. It uses a ball type valve where you need to replace the whole fitting if it leaks. Bring it to a shop and have them change it out since the refrigerant needs to be evac'd. Have them change out the low side schrader valve too.


Agreed....

being the truck is 15+ years old,
there may be other things that should be replaced when the system is opened.
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

Top
#4471041 - 07/26/17 01:40 PM Re: A/C Fitting Leaking Oil [Re: cpayne5]
Linctex Offline


Registered: 12/31/16
Posts: 6178
Loc: Waco, TX
Originally Posted By: cpayne5
Just for reference, that rear fitting is the low side service port and the one leaking is the high side service port. Between the high side and where those two pipes come together (nuts) is where your orifice tube is located.


The "crimps" in the line is a dead giveaway smile
_________________________
"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

Top
#4471151 - 07/26/17 04:01 PM Re: A/C Fitting Leaking Oil [Re: Rhymingmechanic]
Chris142 Offline


Registered: 06/05/03
Posts: 16841
Loc: Deplorable in apple valley, ca
That is a high side charge port. It does NOT use a regular schrader valve. You must discharge the ac and replace the whole valve. I will post a pic when I find it.
_________________________
02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40

Top
#4471152 - 07/26/17 04:03 PM Re: A/C Fitting Leaking Oil [Re: Rhymingmechanic]
Chris142 Offline


Registered: 06/05/03
Posts: 16841
Loc: Deplorable in apple valley, ca
Cpayne5 beat me to it.
_________________________
02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40

Top
#4471168 - 07/26/17 04:28 PM Re: A/C Fitting Leaking Oil [Re: Rhymingmechanic]
Yah-Tah-Hey Offline


Registered: 05/26/14
Posts: 3413
Loc: Columbus,Nebraska
That looks like the high pressure liquid line to me. The low pressure vapor line is the hose going to the condenser. ??

Top
#4471195 - 07/26/17 04:52 PM Re: A/C Fitting Leaking Oil [Re: Yah-Tah-Hey]
Chris142 Offline


Registered: 06/05/03
Posts: 16841
Loc: Deplorable in apple valley, ca
Originally Posted By: HosteenJorje
That looks like the high pressure liquid line to me. The low pressure vapor line is the hose going to the condenser. ??
you got it backwards
_________________________
02 Wrangler durablend 10w40
87 F250 traveler 15w40
04 Tahoe super-s 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
57 case tractor 15w40

Top
Page 1 of 2 1 2 >