Jump to content


Toggle shoutbox Shoutbox Open the Shoutbox in a popup

@  Tobias05 : (06 March 2019 - 09:38 PM)

...trying to convince the wife not to throw a stock replacement system back on...

@  Tobias05 : (06 March 2019 - 09:38 PM)

... i think they have a house brand muffler now? Used to be a magnaflow...

@  Fast86GN : (04 March 2019 - 07:05 PM)

I don't think it would that loud probably depends on the mufflers used?

@  Tobias05 : (01 March 2019 - 03:31 PM)

ZZP 3IN SS Regal exhaust w/plog and DP too loud for a DD?

@  tpivette : (17 February 2019 - 01:03 AM)

Don't know where on the east coast you are, but there's one for sale on craigslist in south Jersey...https://southjersey.craigslist.org/cto/d/browns-mills-98-buick-regal-gs/6779489044.html

@  Frank : (15 February 2019 - 03:42 PM)

Hello everyone! Its been a long time!. Looking to get back into the game. Anyone have a GS on the east coast they wish to part with?

@  ejguillot : (14 February 2019 - 09:08 PM)

Still have a Regal GS project that has taken way too long to build, and it's nowhere near done.

@  ejguillot : (14 February 2019 - 09:08 PM)

Same here.

@  Tobias05 : (09 February 2019 - 04:20 PM)

Haven't been on in a while, hope everyone is doing well!

@  fastnysix : (05 February 2019 - 03:40 PM)

Yes, still here

@  tpivette : (04 February 2019 - 02:26 AM)

Showing some RegalGS love. Anyone still active and lurking?!?

@  marcleach75 : (03 January 2019 - 01:59 PM)

You too bubba.

@  fastnysix : (02 January 2019 - 01:29 PM)

Happy New Year

@  marcleach75 : (31 December 2018 - 03:21 PM)

Hello.

@  WildGS : (27 December 2018 - 05:53 PM)

hello people!

@  buck531 : (24 December 2018 - 04:11 AM)

uhhh sure?

@  shindaiwadealer : (23 December 2018 - 05:32 AM)

Emergency ??? Are Napa crank sensors good??

@  marcleach75 : (19 December 2018 - 08:22 PM)

You too bubba.

@  Regalzzz : (13 December 2018 - 05:44 AM)

I hope everyone has a Merry Christmas on here!!

@  ejguillot : (13 December 2018 - 01:57 AM)

I plan to be on here more often. Don't want this site to fade away.


Photo
- - - - -

AC turns off and on every 10 minutes!


  • Please log in to reply
11 replies to this topic

#1 jason.arthur.taylor

jason.arthur.taylor

    Wheres the Newbie Guide?

  • Members
  • PipPip
  • 28 posts
  • Locationmd
  • First Name:
    Jason

Posted 12 July 2018 - 01:33 AM

2000 Regal.  AC works fine, then after about 10 minutes it turns off.  Then after another 10 minutes it turns back on.  Rinse.  Repeat.  What should I check?  I want AC on all the time.


  • 0

#2 OhMyGS

OhMyGS

    RGS.org VIP Server Upgrade supporter

  • Members
  • PipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPip
  • 4,781 posts
  • LocationNorthern Illinois
  • First Name:
    Alan

Posted 12 July 2018 - 03:04 AM

Is there enough refrigerant in the system? Sometimes a bit low will cause the cycling.
  • 0

#3 jason.arthur.taylor

jason.arthur.taylor

    Wheres the Newbie Guide?

  • Members
  • PipPip
  • 28 posts
  • Locationmd
  • First Name:
    Jason

Posted 12 July 2018 - 03:21 AM

The pressure is there.  There might be air but the pressure is there for sure.  If anything, there is too much refrigerant.


Edited by jason.arthur.taylor, 12 July 2018 - 03:21 AM.

  • 0

#4 OhMyGS

OhMyGS

    RGS.org VIP Server Upgrade supporter

  • Members
  • PipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPip
  • 4,781 posts
  • LocationNorthern Illinois
  • First Name:
    Alan

Posted 12 July 2018 - 12:40 PM

You'll probably have to pull a vacuum and make sure the right amount of refrigerant is in the system.  That will help diagnose where the problem is.  Could be compressor clutch or pressure sensor too.


  • 0

#5 jason.arthur.taylor

jason.arthur.taylor

    Wheres the Newbie Guide?

  • Members
  • PipPip
  • 28 posts
  • Locationmd
  • First Name:
    Jason

Posted 12 July 2018 - 01:17 PM

Thanks for the advice.  

My thoughts on the clutch theory: I don't think it is the clutch.  If it were, I think it would have other symptoms, like never turning on in the first place, right?  Turning on and off in a timed fashion suggests to me that some gas needs to change temperatures or pressure before the pcm switches the system back on.

My thoughts on a pressure regulator being bad: Not possible.  Are you saying the pressure is too low and it is turning off, or the pressure is too high and it is turning off?  My experience is that it only fails to turn on if the pressure is low.  That's all the pressure switch does.  One the compressor kicks in a first time, the pressure on the high side will be high enough to prevent that switch from going into the low state.  Am I wrong? 

My thoughts on the idea of pulling a vacuum for 1/2 hour: 

If I recall correctly, I already did for 1/2 hour.  I'm not sure I want to pull a vacuum for kicks unless there's a logical method by which the pcm is able to shut down a system with air or moisture in it.  Is there?  Does anyone know?  What are the symptoms of a system with air or moisture?  I mean this should be a known reason one has to pull a vacuum.   I mean that's why I'm posting here in the hopes of getting someone who says, yeah, you need to do this for this problem.  Otherwise I'd be doing all sorts of stuff like putting more oil in the system, changing the desiccant filter, checking for leaks, swapping parts that aren't bad, etc.


Edited by jason.arthur.taylor, 12 July 2018 - 01:32 PM.

  • 0

#6 OhMyGS

OhMyGS

    RGS.org VIP Server Upgrade supporter

  • Members
  • PipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPip
  • 4,781 posts
  • LocationNorthern Illinois
  • First Name:
    Alan

Posted 12 July 2018 - 01:47 PM

Pulling a vacuum will let you know how much refrigerant is (was) in the system.  It also gives you an opportunity to check for leaks.  It also allow you to replace the correct amount of refrigerant, oil, and potentially UV dye for future leak detection.


  • 0

#7 jason.arthur.taylor

jason.arthur.taylor

    Wheres the Newbie Guide?

  • Members
  • PipPip
  • 28 posts
  • Locationmd
  • First Name:
    Jason

Posted 12 July 2018 - 10:56 PM

Pulling a vacuum will let you know how much refrigerant is (was) in the system.

How's that?


  • 0

#8 OhMyGS

OhMyGS

    RGS.org VIP Server Upgrade supporter

  • Members
  • PipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPipPip
  • 4,781 posts
  • LocationNorthern Illinois
  • First Name:
    Alan

Posted 13 July 2018 - 02:56 AM

Recovery?
  • 0

#9 jason.arthur.taylor

jason.arthur.taylor

    Wheres the Newbie Guide?

  • Members
  • PipPip
  • 28 posts
  • Locationmd
  • First Name:
    Jason

Posted 19 July 2018 - 12:00 PM

I don't have a $1000 recovery machine.  

I solved the problem.  A key symptom was how the numbers change with the weather: in hotter temperature, the duty cycle of the system was on less.  In colder temps, the ac was on more during the cycle.  Clearly, all pressures are higher at high T, so this suggests that a pressure-related cutoff was happening at high P.  Indeed, once the pressures were lowered, the system worked correctly.  The system has 150 psi high and like 50 low now and works great.  I did not evacuate or anything.  The PCM protects the system by monitoring the high-side pressure.  The cutoff for this car is probably around 400 psi.  I don't actually know how high it was because while hooking up the gauges I lost a lot of pressure.  Anyone with intermittent ac should read this post.


  • 0

#10 Fast86GN

Fast86GN

    I Know Regals

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 2,071 posts
  • LocationDallas,Texas
  • First Name:
    Dave

Posted 15 September 2018 - 11:08 PM

I'm have some intermittent AC problems as well.  Nothing every 10 minutes but one trip its fine the next its not.

 

Several months ago the Compressor went out it looked to be the original, the car has 163K on it. I had Sears put on a new compressor, dryer etc it worked great for a few months. I went around a corner and heard a roar that lasted a couple of seconds and then the air went warm. The clutch came apart. It was under warranty and they replaced the Compressor.

 

Then one day I got in to go to work and it was blowing warm again. I left it overnight at the shop he checks it and it was blowing cold again. He checked all of the sensors, the fans, the electrical etc and put the gauges on it and couldn't find anything wrong.

It finally did stop working again before he was going to take a test drive. Back on the rack the clutch is not on and rechecks everything again and cant find a reason why the clutch is not engaged. 

 

They go ahead a get a third compressor and warranty it. A day later (yesterday) I'm having the same problem. :(   I think I am going to take it to my GN guy and see if he can figure it out? 


Edited by Fast86GN, 15 September 2018 - 11:12 PM.

  • 0

#11 jason.arthur.taylor

jason.arthur.taylor

    Wheres the Newbie Guide?

  • Members
  • PipPip
  • 28 posts
  • Locationmd
  • First Name:
    Jason

Posted 16 September 2018 - 05:00 PM

I now think the pressure should be ~100 psi when off for a while.  What is your pressure at when off? 


  • 0

#12 Fast86GN

Fast86GN

    I Know Regals

  • Members
  • PipPipPipPipPipPipPipPipPipPip
  • 2,071 posts
  • LocationDallas,Texas
  • First Name:
    Dave

Posted 17 September 2018 - 02:37 PM

Sorry Jason didn't mean to hijack your thread
I'm thinking I have fan problems? Has to be something everything else checks out
  • 0




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users

BoHeGeHa Dark Blue 2.1.1 © Thomas Yugar (Chemical Chaos)
Official upgrade for IPB 2.3.x © Michael ( Dev Fuse )
3.X © Upgrade by Dumbledore ( Tppskinning )