Recent Topics
Mazda Miata ridiculous oil change interval
by Baveux
10/21/14 09:48 PM
2 piece engine block on Ford's new 2.7 EcoBoost V6
by gonefishing
10/21/14 09:47 PM
Sears Die Hard Platinum
by StevenR
10/21/14 09:35 PM
2015 VW GTI, one of the best under $30k?
by buster
10/21/14 09:01 PM
Lone wolf strike in Canada?
by DNVDMAX
10/21/14 08:59 PM
Kawasaki 175 Old Enduro Carb set up....Advice ?
by Rudy1999 250
10/21/14 08:53 PM
Low Beams too dim
by BrandonVA
10/21/14 08:48 PM
Bio clean for a slow drain?
by supton
10/21/14 08:10 PM
KIA and Honda 0 or 5/20
by pair of Blazers
10/21/14 07:30 PM
TGMO 0W-20, 9,950 mi on oil, 2012 Elantra GLS,127K
by schuylkill
10/21/14 07:09 PM
Oil wieght for 360 magnum
by pjc360
10/21/14 07:06 PM
Anyone using Cooler master Elite Desktop?
by FirstNissan
10/21/14 06:53 PM
Newest Members
ArtGarcia, 12e, AnonyBliss, Rits, BMEP
51659 Registered Users
Who's Online
102 registered (andyd, actionstan, 901Memphis, -SyN-, 74DartSport, 11 invisible), 1573 Guests and 176 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
51659 Members
64 Forums
221033 Topics
3493647 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG

Topic Options
#2224116 - 04/06/11 06:02 PM Can smell freon (134) in my cab of truck.
lifeson2112 Offline


Registered: 01/12/11
Posts: 78
Loc: Texas
1992 Silverado, 305...150,000 miles. Switched on AC the other day, and it did not get cold. The "AC" led was blinking, I assume indicating it was in distress of some sort. Ive had the truck 4 years, cold AC every summer, but now I guess thats out the window. Anyway...I started smelling freon in the cab and when I opened the hood, I again smelled it. You cant miss that smell, it stinks bad. Besides repairing, besides refilling, what can I do stop the the smell? It cant be good to breath this stuff. Truck got "totaled" by ins. compnay last week, but runs and drives, so its hardly worth putting any real bucks into it. Thanks.

Top
#2224183 - 04/06/11 06:56 PM Re: Can smell freon (134) in my cab of truck. [Re: lifeson2112]
Chris142 Online   content


Registered: 06/05/03
Posts: 11454
Loc: apple valley, ca
R12 and R134a Have no smell.
_________________________
02 Wrangler super-s 1030
87 F250 Diesel proline 1540
04 Tahoe super-s 530
Z400 maxima 2050
KLR250 Maxima 1040
Polaris Trailblazer delo 5w40

Top
#2224185 - 04/06/11 07:00 PM Re: Can smell freon (134) in my cab of truck. [Re: Chris142]
gathermewool Offline


Registered: 01/09/09
Posts: 3610
Loc: New England
Originally Posted By: Chris142
R12 and R134a Have no smell.


+1 It wasn't R134a you smelled.
_________________________
14 Forester XT
GC 0W-30 + Subie blue filter
08 Civic LX (Auto)
VWB 5W-20 + Fram Ultra Guard filter

Top
#2224189 - 04/06/11 07:02 PM Re: Can smell freon (134) in my cab of truck. [Re: lifeson2112]
dave munson Offline


Registered: 10/08/05
Posts: 110
Loc: Illinois
Fix it. Leave it. It is kind of rough that you don't feel it is worth the effort to keep it running but don't whine. Add some freon and see if it leaks again. It it does, either put another can in or ignore it and hope the pump don't seize up.
_________________________
dem

Top
#2224192 - 04/06/11 07:10 PM Re: Can smell freon (134) in my cab of truck. [Re: lifeson2112]
Quattro Pete Offline


Registered: 10/30/02
Posts: 25909
Loc: Michigan
Is it an A/C belt that's slipping that's generating the smell?
_________________________
'02 530i (PU 5W-40)
'08 C300 4Matic (M1 0W-40)
'13 F700 GS (BMW HP 15W-50)

Top
#2224193 - 04/06/11 07:11 PM Re: Can smell freon (134) in my cab of truck. [Re: lifeson2112]
exranger06 Offline


Registered: 01/25/08
Posts: 2602
Loc: Guilford, CT
R134a DOES have a smell. I smelled it a lot when I was fixing my Explorer's AC. If you smell it inside the cab, my guess would be a bad evaporator.
_________________________
2006 Ford Ranger Sport -55k mi
1992 Honda Accord EX -173k mi
1994 Ford Explorer Sport -192k mi
1994 Ford Bronco XLT (project)

Top
#2224214 - 04/06/11 07:23 PM Re: Can smell freon (134) in my cab of truck. [Re: exranger06]
gathermewool Offline


Registered: 01/09/09
Posts: 3610
Loc: New England
Originally Posted By: exranger06
R134a DOES have a smell. I smelled it a lot when I was fixing my Explorer's AC. If you smell it inside the cab, my guess would be a bad evaporator.


The odor is so light that usually, and especially in older equipment, the odor of whatever the refrigerant is blowing past will mask the smell of the refrigerant itself. It by no means stinks. Stinky usually means organics getting too hot, like rubber belts or clutches.
_________________________
14 Forester XT
GC 0W-30 + Subie blue filter
08 Civic LX (Auto)
VWB 5W-20 + Fram Ultra Guard filter

Top
#2224273 - 04/06/11 08:03 PM Re: Can smell freon (134) in my cab of truck. [Re: exranger06]
Chris142 Online   content


Registered: 06/05/03
Posts: 11454
Loc: apple valley, ca
Originally Posted By: exranger06
R134a DOES have a smell. I smelled it a lot when I was fixing my Explorer's AC. If you smell it inside the cab, my guess would be a bad evaporator.
You were smelling the odor that Pag oil has.
_________________________
02 Wrangler super-s 1030
87 F250 Diesel proline 1540
04 Tahoe super-s 530
Z400 maxima 2050
KLR250 Maxima 1040
Polaris Trailblazer delo 5w40

Top
#2224771 - 04/07/11 09:39 AM Re: Can smell freon (134) in my cab of truck. [Re: lifeson2112]
rcy Offline


Registered: 02/14/04
Posts: 1557
Loc: Burlington, Ontario, Canada
When my 1999 Dodge Grand Caravan ended up with a leaking evaporator (these things were almost guaranteed to leak...thank you Chrysler), the smell from the vents reminded me of the smell of a box of band-aids...really.

Top
#2225190 - 04/07/11 04:29 PM Re: Can smell freon (134) in my cab of truck. [Re: lifeson2112]
mechtech2 Offline


Registered: 09/05/06
Posts: 19479
Loc: Chicago Area
I never noted a smell of R12 or R123a, either.
I don't think they have a smell.

So you have a smell from a totaled car?
Coolant or oil on the hot exhaust is more likely.
And on that totaled car, don't you think that you may have more that one problem?

Top
#2225531 - 04/07/11 09:18 PM Re: Can smell freon (134) in my cab of truck. [Re: Chris142]
ComfyShorts Offline


Registered: 04/26/10
Posts: 178
Loc: California
Originally Posted By: Chris142
Originally Posted By: exranger06
You were smelling the odor that Pag oil has.



DING DING DING. r134a has no smell. Its the pag oil you're smelling. And yes likely issue at the evaporator/connections to. AC systems have pressure switches, if you have a leak once pressure drops below certain amount it will force compressor clutch from engaging to avoid damage to compressor.

Top
#2226016 - 04/08/11 11:24 AM Re: Can smell freon (134) in my cab of truck. [Re: Chris142]
OilNerd Offline


Registered: 09/14/09
Posts: 1235
Loc: Plattsburgh, NY
Originally Posted By: Chris142
R12 and R134a Have no smell.


R134a has no smell? A slight smell, yes; odorless, no. Here are two MSDS sheets from DuPont and National Refrigerants.

Originally Posted By: DuPont SUVA 134a MSDS
SECTION 9. PHYSICAL AND CHEMICAL PROPERTIES
Form : Liquefied gas
Color : colourless
Odor : slight, ether-like


http://msds.dupont.com/msds/pdfs/EN/PEN_09004a35804fa7ff.pdf

Originally Posted By: National Refrigerants MSDS
EMERGENCY OVERVIEW: Colorless, volatile liquid with ethereal and faint sweetish odor.


http://ww2.ramapo.edu/libfiles/HR/Environmental_Health_and_Safety/MSDS/Facilities/HVAC/134a.pdf


Edited by OilNerd (04/08/11 11:27 AM)
_________________________
Buddy's Wife: "Why do you need to get a V-8 Mustang?"
Buddy: "Because I can't get a V-12 Mustang!"

Top