How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Joe Barcus Your Own Question
Joe Barcus
Joe Barcus, Auto Mechanic
Category: Car
Satisfied Customers: 38
Experience:  50 yrs old lol
83467
Type Your Car Question Here...
Joe Barcus is online now
A new question is answered every 9 seconds

99 chevy: 125,000 miles my aircond..mech..console switches

Customer Question

Hi I have a 99 chevy silverado 125,000 miles my aircond. has been giving problems local mech. replaced 2 pressure swithes accumaltor switch & dash console switches. Still have problems with unit working when I start up for a few minutes than compressor shuts off & works intermitenly . Can you help??   
Thanks Sonny Anaheim Ca.
Submitted: 11 years ago.
Category: Car
Expert:  Joe Barcus replied 11 years ago.
SOUNDS LIKE YOU HAVE A BLOCKAGE AT THE ORFICE, IF IT CYCLES TOO MANY TIMES AT ONCE IT WILL LOCK OUT ALL TOGETHER IN THE COMPUTER. THAN YOU WILL HAVE TO TAKE A BATTERY CABLE OFF TO RESET IT. YOU MAY VERY WELL BE LOW ON FREON ALSO, DID THE MECHANIC CHECK YOUR PRESSURES PLUS FEEL THE LINE AS IT COMES OUT OF THE TOP OF THE ACUMALATOR. THATS THE BIG SILVER THING NEXT TO THE COWL. TEMP NEEDS TO BE COLD AS IT COMES OFF OF IT. AGAIN SOUNDS LIKE A BLOCKAGE THOUGH
Customer: replied 11 years ago.
Reply to Joe Barcus's Post: Hi Joe,
Thanks for your help, my mech did check the pressures & filled the freon. He said there were no leaks & system checked out good in that regard. Concerning the acumaltor, when the unit is working the freon line coming out is cold, and when it cycles off it is hot. Your point about the computer may be right on since he was having problems with the switch on the acumaltor not reciving power when the unit was turned on inside the truck. This led to his thought that the dash console was bad, although in retrospect it most likley is a computer type signal problem. Can you add anything THANKS SONNY
Expert:  Joe Barcus replied 11 years ago.
Sonny,
Thanks for getting back to me on this, Yes no doubt in my mind at all you have a plugged orfice causing the the trouble. If you mechanic could recover the freon and check the orfice you will find this will be correct. now if you see it plugged up with metal cuttings than that is more bad news of course. the cuttings will be coming from the compressor and thats always bad news. thats about all I can say at the moment. Hope this helps, only to add and I know your mechanic should know this. when you think theres a bloakage always attach your gauges on both sides when recovering the freon for sometimes if you only hook to the low side and take the freon down to zero, on the other side of the block is alot more waiting on you. good luck
Joe Barcus, Auto Mechanic
Category: Car
Satisfied Customers: 38
Experience: 50 yrs old lol
Joe Barcus and 13 other Car Specialists are ready to help you
Customer: replied 11 years ago.
Reply to Joe Barcus's Post: Thanks Joe,
Where is the orfice located,and what would cause this to become blocked, (other then what you stated about the compressor going out). Or do you think it would be a good idea to change out the compressor given the amount of miles on my truck. At this point I am losing faith in my mech. Since I have had to go back to him 4 times about this.

Thanks Sonny
Expert:  Joe Barcus replied 11 years ago.
oh I wouldnt lose faith in your mechanic just yet, he could be very helpful here, the orfice is located in the little line coming from the condenser. he will know where it is. and the only thing that would plug this up is cuttings from the compressor. or a hose failing you will see what one it is when you take it out, if its cuttings or rubber. you should at that time replace the compresor, ecumlator as well it also serves as a filter, and if you buy a new compressor they will require you to buy a new filter as well. also if you decide to buy a used compressor make sure your mechanic adds a few oz's of oil to the compressor before putting it on, it will have to be oil for 134a, again your mechanice should know about this. pull it apart first than you will know than whay steps you will need afterwards, if you are buying new items you could easy get into 500.00 here. again the orfice will tell the story
Customer: replied 11 years ago.
Thanks Joe this seems to be a great help, I let you know.

Sonny

JustAnswer in the News:

 
 
 
Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
 
 
 

What Customers are Saying:

 
 
 
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
< Previous | Next >
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA
  • Lurch. Thank you very much. I had real doubts about this website but your promptness of response, quick followup and to the point answer with picture was incredible. Charles Walnut Creek, CA
  • As a single woman, I really appreciate an excellent and affordable opinion.
    Thank you Geordie, I will not hesitate to contact justanswer in the future!
    Sue Charleston, WV
  • Another great insight to what may be the problem. I will have my mechanic take a look at it tomorrow. Thanks again, Frank...you do indeed know your stuff. Jim Castleberry, FL
  • Excellent reply, and also very quick. Really sounds like the Expert knows what he is talking about. I will be back to use your service when I need more help with my RV. Dutch USA
 
 
 

Meet The Experts:

 
 
 
  • Chris (aka-Moose)

    Chris (aka-Moose)

    Technician

    Satisfied Customers:

    1006
    16 years of experience
< Last | Next >
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka-Moose)'s Avatar

    Chris (aka-Moose)

    Technician

    Satisfied Customers:

    1006
    16 years of experience
  • http://ww2.justanswer.com/uploads/TE/TedG/2012-6-15_14759_avaLarge.64x64.jpg Ted G.'s Avatar

    Ted G.

    ASE Certified Technician

    Satisfied Customers:

    1694
    20 years auto repair experience, ASE Master Tech, Mechanical Failure consultant, Expert Witness
  • http://ww2.justanswer.com/uploads/joecamel90/2008-11-13_03615_head_shot.jpg George H.'s Avatar

    George H.

    ASE Certified Technician

    Satisfied Customers:

    1447
    ASE Master Tech 15+ yrs, AAS Automotive Technology, Factory trained Asian specialist
  • http://ww2.justanswer.com/uploads/BL/Bluegorilla/2012-6-21_16298_cam.64x64.JPG GM Tech (Cam)'s Avatar

    GM Tech (Cam)

    Auto Service Tech

    Satisfied Customers:

    669
    GM Grand Master Technician 2007. 14 years experience.
  • http://ww2.justanswer.com/uploads/AM/amedee/2013-10-24_23656_Amedee1.64x64.jpg Amedee's Avatar

    Amedee

    Former ASE Master Tech

    Satisfied Customers:

    2406
    ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector
  • http://ww2.justanswer.com/uploads/SU/supermechanic/2013-8-23_03546_500.64x64.jpg Jerry's Avatar

    Jerry

    Master Mechanic

    Satisfied Customers:

    2123
    ASE master, 30+ years. All makes and models. Trouble shooter, shop forman, service manager
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar

    Richard

    ASE Certified Technician

    Satisfied Customers:

    992
    12 years Ford Lincoln/Mercury Jaguar dealership as a technician and shop foreman reparing all makes