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There is no power to the air conditioner on ...

Sent to Car Experts June 8 2006 at 10:37 AM
   

There is no power to the air conditioner on my 1997 lincoln continental. When you apply 12 volts directly to the compressor, it turns on and cools fine.
I was told it is the powertran control module. Another mech said it could just be a relay.
Please help.
Frank

 

Optional Information:
1997 Lincoln continental v8

Already Tried:
Just 2 mechanics opinion/p>

Customer (name blocked for privacy)
Status:  Closed   Value: $15
Reply
June 8 2006 at 10:46 AM (9 minutes later)
         
Relist: No answer yet.
Customer (name blocked for privacy)
Answer
June 8 2006 at 10:59 AM (12 minutes and 30 seconds later)
         
REPLIEDCheck Mark

There are 6 fuses involved in the A/C system operation and the Pcm power relay. Any of these could be the problem. The PCM controls the ground to the A/C clutch relay. There is alot that could be involved in causing it not to engage correctly. I have attached 2 wiring diagrams for you maybe these will help diag the possible problem

2006-06-08_155839_ac1.zip

2006-06-08_155912_ac2.zip



I hope I have been helpful. If more info is needed just ask.
Please select Accept when your question has been answered. And Bonuses and Feedback are nice too.
Thanks Tim
Picture
Tim Basham -- ASE Certified Master Technician -- 100% Positive Feedback on 272 Car Accepts
30 year multi line tech ASE cert master tech ASE engine machinist. Specializing in 4WD +++
Reply
June 8 2006 at 12:39 PM (1 hour and 39 minutes and 51 seconds later)
         
Reply to Tim Basham's Post: Hello Tom,
When I try to open the two diagrams, I get a message "invalid menu handle" Please advise.
Thanks, Frank
Customer (name blocked for privacy)
Answer
June 8 2006 at 1:21 PM (42 minutes and 32 seconds later)
         
REPLIEDCheck Mark
They are both zip files which you will have to unzip and open with the adobe reader. I just tried them and they both work for me from the links. Try again, hopefully you can get them to work.

I hope I have been helpful. If more info is needed just ask.
Please select Accept when your question has been answered. And Bonuses and Feedback are nice too.
Thanks Tim
Picture
Tim Basham -- ASE Certified Master Technician -- 100% Positive Feedback on 272 Car Accepts
30 year multi line tech ASE cert master tech ASE engine machinist. Specializing in 4WD +++
Reply
June 9 2006 at 9:52 AM (20 hours and 30 minutes and 26 seconds later)
         
Reply to Tim Basham's Post: Hello Tim Bashman / Tammy Falkner

I'm still tyring to pull up a reply to this morning's posting - no luck.
All I see is replies to my old posting. My clock runs out in 2 1/2 hours. Please help.

Thanks, Frank
919-422-1979

Edited by Customer (name blocked for privacy) on June 9 2006 at 9:52 AM
Customer (name blocked for privacy)
Answer
June 9 2006 at 11:20 AM (1 hour and 28 minutes and 4 seconds later)
         
REPLIEDCheck Mark
have a email address I will email them to you send it to me in a PM

I hope I have been helpful. If more info is needed just ask.
Please select Accept when your question has been answered. And Bonuses and Feedback are nice too.
Thanks Tim
Picture
Tim Basham -- ASE Certified Master Technician -- 100% Positive Feedback on 272 Car Accepts
30 year multi line tech ASE cert master tech ASE engine machinist. Specializing in 4WD +++
Reply
June 9 2006 at 11:28 AM (8 minutes and 43 seconds later)
         
Reply to Tim Basham's Post: Hello,
This is a recap of my no AC problem.
Last year my AC was intermittent. The first mechanis said it need a recharge (no leaks)\Two weeks later the same problem. Another mechanic sais it was overcharhed, it died again after 2 weeks.
This year it's dead. Pep Boys checked fuses and relays, all OK, then applied power directlt to the compressor, it cooled, and told me I need a PCM.
Aother ford mech said it isn"t true< ans wants $() to check it out (sorry can"t do spell check)
frank
Customer (name blocked for privacy)
Answer
June 9 2006 at 11:39 AM (10 minutes and 16 seconds later)
         
REPLIEDCheck Mark

yes and actually both could be right. There are many different things that coukld cause the electrical part of the system not to operate. This is one thats hard to do a online diag of it. It take a test light and wiring diagram and checking circuits to see where the actual loose of voltage is occuring. I would be glad to send you the diagrams in email if you would like. It might help you understand some of the system or be helpful to your mechanic on diag. the problem



I hope I have been helpful. If more info is needed just ask.
Please select Accept when your question has been answered. And Bonuses and Feedback are nice too.
Thanks Tim
Picture
Tim Basham -- ASE Certified Master Technician -- 100% Positive Feedback on 272 Car Accepts
30 year multi line tech ASE cert master tech ASE engine machinist. Specializing in 4WD +++
Reply
June 9 2006 at 11:40 AM (1 minute and 28 seconds later)
         
Reply to Tim Basham's Post: Tim,
I just receiced your email, but when I click on the link, there is no reply posted ???
Frank
Customer (name blocked for privacy)
Reply
June 9 2006 at 11:47 AM (6 minutes and 37 seconds later)
         
Reply to Tim Basham's Post:
Tim,
Pep Boys said I need a PCM - the Ford Dealer said this can't be the problem, which is true ?
Frank
Customer (name blocked for privacy)
Answer
June 9 2006 at 12:30 PM (43 minutes and 33 seconds later)
         
ACCEPTEDCheck Mark
I reported you problem with not being able to read my posts to the Moderators. I also sent you a PM

I hope I have been helpful. If more info is needed just ask.
Please select Accept when your question has been answered. And Bonuses and Feedback are nice too.
Thanks Tim
Picture
Tim Basham -- ASE Certified Master Technician -- 100% Positive Feedback on 272 Car Accepts
30 year multi line tech ASE cert master tech ASE engine machinist. Specializing in 4WD +++
Reply
June 12 2006 at 2:35 AM (2 days and 14 hours later)
         
Relist: I still need help.
Tim,
I'm still waiting for a reply to my last question
regarding my AC that won't run.
Pep Boys said I need a PCM - the Ford Dealer said this isn't true. Which is correst ???
Frank
Customer (name blocked for privacy)
Answer
June 12 2006 at 4:16 AM (1 hour and 41 minutes and 11 seconds later)
         
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Tim Basham -- ASE Certified Master Technician -- 100% Positive Feedback on 272 Car Accepts
30 year multi line tech ASE cert master tech ASE engine machinist. Specializing in 4WD +++
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