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A/C pressure guage #4448696
07/03/17 07:44 PM
07/03/17 07:44 PM
Joined: Apr 2013
Posts: 19
Georgia !
topsy Offline OP
topsy  Offline OP
Joined: Apr 2013
Posts: 19
Georgia !
Looking at buying a gauge set. I see guages starting at $25, which obviously is the lowest quality. Are there any gauges available for under $100 that would be of a much better quality?

Thanks

Re: A/C pressure guage [Re: topsy] #4448709
07/03/17 07:50 PM
07/03/17 07:50 PM
Joined: Sep 2014
Posts: 1,447
Toronto Canada
WobblyElvis Offline
WobblyElvis  Offline
Joined: Sep 2014
Posts: 1,447
Toronto Canada

Re: A/C pressure guage [Re: topsy] #4448710
07/03/17 07:50 PM
07/03/17 07:50 PM
Joined: Jun 2012
Posts: 678
Reno, NV
redbone3 Offline
redbone3  Offline
Joined: Jun 2012
Posts: 678
Reno, NV
All of the gauges on these are grade B (+/-3% of full scale on the first and last 25% of the range and +/- 2% of full scale in the center 50% of range). Look for the quality and length of the hoses and hardware to make your decision.


2014 Passat Wolfsburg, 1995 Miata.
Re: A/C pressure guage [Re: topsy] #4448725
07/03/17 08:01 PM
07/03/17 08:01 PM
Joined: Mar 2004
Posts: 20,763
Upstate NY
Donald Offline
Donald  Offline
Joined: Mar 2004
Posts: 20,763
Upstate NY
Keep in mind that a set of gauges will not make you an auto A/C expert. There are a lot of other tools needed to work on an auto A/C. If there is a leak the source needs to be identified and corrected which can mean a $200 leak detector or yellow glasses and a UV light.

To work on the system you need to evacuate the system, saving and filtering the R134a for reuse.

To verify you need to pull a vacuum for 30 min and have it hold the vacuum.

And to fill the system it's filled by weight.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: A/C pressure guage [Re: topsy] #4448740
07/03/17 08:13 PM
07/03/17 08:13 PM
Joined: Apr 2013
Posts: 19
Georgia !
topsy Offline OP
topsy  Offline OP
Joined: Apr 2013
Posts: 19
Georgia !
Thanks for the replies, if anyone has any other brand recommendations let me know.

Re: A/C pressure guage [Re: topsy] #4448767
07/03/17 08:38 PM
07/03/17 08:38 PM
Joined: Dec 2013
Posts: 2,205
Fort Worth, Texas
clinebarger Offline
clinebarger  Offline
Joined: Dec 2013
Posts: 2,205
Fort Worth, Texas
Robin-Air used to be the gold standard for automotive a/c equipment, I'm still using a 35+ year old R-12 RobinAir gauge set that I made conversion hoses for (R-12 on the manifold side & 134a on the other using some nice aluminum Snap-On brand disconnects. The great thing is I can still use my R-12/R-22 hoses on the same manifold.

I have a 25 & 30 year old RobinAir Vacuum Pumps that will not die.

I'm sure they have been bought out by some foreign interest by now?


2001 Chevy Camaro L92/4L80E
2006 Chevy 2500HD LBZ/Allison 1000
2010 Toyota Corolla 2ZR-FE/Auto
Re: A/C pressure guage [Re: topsy] #4448770
07/03/17 08:38 PM
07/03/17 08:38 PM
Joined: Feb 2013
Posts: 10,720
Phoenix, AZ
Nick1994 Online content
Nick1994  Online Content
Joined: Feb 2013
Posts: 10,720
Phoenix, AZ
The Harbor Freight ones are good. A buddy of mine is a mechanic and uses them.


2015 Hyundai Sonata 2.4L 84k Mobil 1 AFE 0w30 & OEM
2000 Toyota Camry 2.2L 230k Valvoline 5w30 & Fram Ultra
1996 Jeep Cherokee 4.0L 147k Mobil 1 HM 10w40 & Fram Ultra
Re: A/C pressure guage [Re: Donald] #4448777
07/03/17 08:45 PM
07/03/17 08:45 PM
Joined: Nov 2008
Posts: 127
FL
9050lx Offline
9050lx  Offline
Joined: Nov 2008
Posts: 127
FL
My brother in law praises the harbor freight el-cheapo dual stage vacuum pumps for price and longetivity, using them in some kind of parts press operations.I have no experience with them but he likes them.

Re: A/C pressure guage [Re: topsy] #4448811
07/03/17 09:07 PM
07/03/17 09:07 PM
Joined: Mar 2012
Posts: 1,288
San Antonio, TX
E150GT Offline
E150GT  Offline
Joined: Mar 2012
Posts: 1,288
San Antonio, TX
Ive seen some yellow jacket branded ones that seem ok. Ive used a set of my friends before.


1984 Mercedes-Benz 300SD - 100k
1995 F150 XL 4.9 reg cab 5MT - 251k 5w30
2016 Mazda6 Touring 6MT - 57k 10w30
2006 Buick Lucerne CXL 3.8 31k 5w30
Re: A/C pressure guage [Re: topsy] #4448821
07/03/17 09:13 PM
07/03/17 09:13 PM
Joined: Jan 2013
Posts: 76
Tennessee
chrly919 Offline
chrly919  Offline
Joined: Jan 2013
Posts: 76
Tennessee
I've used my HF gauges for about 10 years. No complaints for my shade tree projects.


99 Honda CRV AWD 250k
PHM 5w30 Purolator PureOne
14 Jeep G Cherokee Limited
93 Corvette coupe M1 5w30
01 Corvette coupe M1 5w30
Re: A/C pressure guage [Re: topsy] #4448822
07/03/17 09:13 PM
07/03/17 09:13 PM
Joined: May 2010
Posts: 9,067
North Carolina
spasm3 Offline
spasm3  Offline
Joined: May 2010
Posts: 9,067
North Carolina
Mine are robin-air, i use them on my r-22 home unit as well.



13 elantra 70k 5w30 QSUD
03 chevy avalanche79k synpwr 10w30
01 saturnsc1 185k synpwr rebuilt
17 mazda cx-5 5600 miles m1 0w30

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