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 Tech501 Your Own Question
Tech501
Tech501, Auto Service Technician
Category: Car
Satisfied Customers: 747
Experience:  38 years exp, ASE Mastertech with L1 Advanced Engine performance
74686
Type Your Car Question Here...
Tech501 is online now
A new question is answered every 9 seconds

98 ford windstar: ac clutch problem

Customer Question

ac clutch problem/ 98 ford windstar. just bought from auction. ac worked fine for first 30 minutes ,quit, then can back on later. put freo in it the next day. worker for 30 minutes or so. clutch is not kicking on. their was no noise. pressure is around 45/50lbs. could it be elect. connection.
Submitted: 11 years ago.
Category: Car
Expert:  Joe Barcus replied 11 years ago.
first question (1) were you sure it needed freon. 50 lb is a little much. the ideal low side pressure on a 70 degree day should be 35 to 40 lb and on a 90 degree day will hang at 40 to 45 give or take a few lb.
one thing if it was low in freon and it cycled to many times it locked itself out, try un hooking battery for about a min clear the computer hook it back up, if it works than thats what it was, you were low in freon and it cycled too many times. but again should check the high side pressure as well 150 to 175 lb is what it should be again it depends on the temp outside as well.
now the next thing if you over filled the unit, it locked out on high pressure. but should come back when pressure fall back, but your saying its not working at all so i doubt thats the case.
you say it made a noice, well if you overfilled the unit and it was more than the clutch could handle it may have burned up. check the voltage at the plug should have 12vdc there with the switch on. if you find voltage there then yes its the clutch. if no voltage again un hook batt back up. let me know
Customer: replied 11 years ago.
Reply to Joe Barcus's Post: Thanks for your reply. No the compressor did not ever make any noise. I did unhook the battery and retried, the compressor did start up for a short moment but dropped out again. still no noise. Have not checked voltage at compressor yet. must be their, at least for a while as it did engage for a brief second on so.
Expert:  Joe Barcus replied 11 years ago.
thanks ron for responding,seems the computer is thinking you have a pressure problem therefore locking you out. im going to shoot for this and I will bet I have it right on the head.
your orfice is plugged up causing low pressure right away, by not letting the freon on move about. and when you added freon it really wasnt low but it had just pumped everything over to the high side.
How can you be sure, well you will need someone to recover the freon for you, then look on the thin line for the orfice tube or line, if its a orvice you can remove it and I myself will bet you right here its plugged up. some people in the past has tried butane type freon that is a big big no, not only does it eat the bearings in your compressor, its (flamible) now im not saying this is the case here but have run into cases like this with that same butane stuff.
ok now you will have to replace the receiver as well for theres a good chance it is plugged as well. if you can get someone to remove the old freon for you, you yourself could handle the rest for 134a anyone can buy. but i would say let someone take care of it that knows how to do it. let me know what you find out. and you dont owe me a dime. I just would like to know in the end. Joe
Expert:  Tech501 replied 11 years ago.
 A simple way to determine if there is a blockage is to feel the temp of the liquid line. It it is warm to the touch, it has travel. If it's  cold (room temp), you have a blockage.  I think your problem is electrical though.
Expert:  Joe Barcus replied 11 years ago.
if the pump wont run long enough to get a line temp that may be hard to check. I still believe shes plugged. oh so common on autos.
Expert:  Tech501 replied 11 years ago.
 A blockage won't shut the compressor down that fast.

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