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Cadillac DeVille 1985 to 2005 including:
1985-1992 Fleetwood, 1993 Sixty Special, All FWD Forum Discussion, Coolant Steam coming thru AC dash vent in Past Cadillac Vehicle Discussion; Originally Posted by SUPER LAC DEVILLE I was actually thinking saving money on these and maybe buying some good ones ...
  1. #31
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    Re: Coolant Steam coming thru AC dash vent

    Quote Originally Posted by SUPER LAC DEVILLE View Post
    I was actually thinking saving money on these and maybe buying some good ones when I get my income tax refund

    http://bit.ly/1btynGI
    -----------------------------------------
    get the CORRECT FANS that were made for the car -
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  2. #32
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    Re: Coolant Steam coming thru AC dash vent

    Ive been messing with my fans trying to get them to work,

    finally jus cut the plugs from the LH Passenger Fan and the burnt plug lead and added my own connectors

    Started the car and hit the AC on... both Fans came on low but after a few minutes they shut off and I got the "low refrigerant- AC off" on the IC ( AC Refrigerant Is Not Low... I know this for a Fact )

    I already knew the AC wasn't working because the compressor clutch didn't engage with AC on, which I normally can hear/feel in the car

    Ive been researching CF and found 2 threads with Identical Problems but im a lil unsure of the solution to the issue

    1).. http://www.cadillacforums.com/forums...fans-fail.html

    2).. http://www.cadillacforums.com/forums...oling-fan.html

    So ive checked the Fuses and don't see any bad ones, I cleaned them before reinserting them hoping it was jus a bad connector... Nothing Changed

    Ive looked at the AC relay under the hood fuse block, but I don't hear the click with the ac on or off and the connector ends look fine... im leaning on that may be the AC problem but I don't know Relay's so im jus guessing on that

    One thing that struck me was Post#10 in the 2nd link (above) that stated

    " Under normal conditions both fans run in slow speed because they are wired in series if one fan open circuits, neither fan will run. "

    So here, im thinking the RH Passenger fan is the Problem because that is the one that, if I played with the wire (few days ago), both fans came on... Well, maybe not???

    When I got home a lil bit ago my temp was at 226*/228* so I popped the hood to check the fans and the RH Passenger fan was on high... the LH Driver side was Dead Stop.

    So now im thinking the LH Driver Side Fan... ???

    At this point im confused, but im leaning to Replacing the fans and AC relay...

    Any other Ideas and/or suggestions for me to look at PLEASE !!!!

  3. #33
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    Re: Coolant Steam coming thru AC dash vent

    the fans are automatic - and there are two conditions that make them run -

    if you turn the AC on - AND IT WORKS -
    BOTH fans will run at slow speed -

    in your case - you got the "low refrigerant- AC off" message -
    and it shut down the AC system - so - the fans also shut down -

    if you check for codes - there should be one for "low refrigerant"
    and the compressor will never run until this code is cleared -

    AC Refrigerant Is Not Low... I know this for a Fact
    and just HOW do you know this -
    the ONLY way to be sure - is to connect a set of gauges -
    what are the HIGH and LOW pressure readings?
    -----------------

    the other condition that causes the fans to run is coolant temp -

    the fans start around 226 - and go to high around 235 -
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  4. #34
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    Re: Coolant Steam coming thru AC dash vent

    You got a LOW REFRIGERANT warning and the compressor is disabled. What more proof do you need? What makes you think you are not low on refrigerant?

  5. #35
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    If you got the low refrig warning, it's either low or sensor is faulty(doubt it).
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  6. #36
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    Re: Coolant Steam coming thru AC dash vent

    I know the Refrigerant isn't low bc I have checked with the AC guage that comes with the AC refill can

    It shows in the redline, somewhat below where it was last year when we checked it then and got the AC working again

    Maybe I'm not checking right ???, but I hooked it up like the guy at Advance showed me

    The AC has always worked fine until the fans started with this BS...

    Additionally , "low refrigerant-AC off" was the IC message when I bought the car, eventually, that's how we discovered the fans weren't properly connected in the first place... The previous owner Hot Wired the fans to the ignition, which (as i understood it) pretty much bipassed the AC Compressor

    When we hooked the fans up properly, the AC Compressor came on and the AC blew cold

    Aside of that, only the RH Passenger fan is coming on with the AC Off, when the temps call for it

    My thinking is that the LH Driver side is "Open Circuits" when the AC is turned on, therefore shutting down the fans and the AC, but maybe it's the RH fan???

    I jus know that fault or open circuit in the fans will cause the AC to not come on and set the Low Refrigerent code, bc that's how it was when I bought the car... I know that doesn't sound right but that's what it does.

    BUT, Is there some other way to connect the AC Refill guage/can the Advance Autopart guy doesn't know??? I jus don't see how it can be low if the guage is in the red line????

    Where are the AC sensors or any other relays I should check????

    Thanks for the responses !

  7. #37
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    Re: Coolant Steam coming thru AC dash vent

    Those gauges that come with the cans are useless. You really need a good "set" of A/C gauges. Did you check it with the engine running and the A/C on? If not, all you checked was static pressure which will almost always be in the red unless the system is completely empty. I refer back to post #34.

  8. #38
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    Quote Originally Posted by Ranger View Post
    Those gauges that come with the cans are useless. You really need a good "set" of A/C gauges. Did you check it with the engine running and the A/C on? If not, all you checked was static pressure which will almost always be in the red unless the system is completely empty. I refer back to post #34.
    No I didn't check with engine running, or AC on, but it won't take any from the can (Not Running Tho) it jus goes "SSS"

    I'll go try with engine and AC on now and letcha know...


    Sent from AutoGuide.com Free App

    ----------

    ok,

    so I jus checked with the ac and engine on and it was in the red still, and when I pulled the trigger for a few seconds the refrigerant back fired out of the can in a small POOF... I tried to upload an image but cf wont let me no matter how small I make it...

    The gauges we used last year looked something like this... http://www.ebay.com/itm/R22-R134a-Ma...item5ae860a5fe... I remember he said; "Well, its over charged so we know you don't have a leak"

    The can im using is this... http://www.ebay.com/itm/A-C-Pro-Prof...b2defe&vxp=mtr

    Whats Next to check???

  9. #39
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    Re: Coolant Steam coming thru AC dash vent

    when I pulled the trigger for a few seconds the refrigerant back fired out of the can in a small POOF..
    It wasn't properly connected.

    The gauges we used last year looked something like this... http://www.ebay.com/itm/R22-R134a-Ma...item5ae860a5fe... I remember he said; "Well, its over charged so we know you don't have a leak"
    If it is over pressurized the compressor will shut down as well, but that is not what your DIC message is showing. At this point I don't know if you are over or under pressurized. You need to take it to a qualified A/C tech.

  10. #40
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    Quote Originally Posted by Ranger View Post
    It wasn't properly connected.

    If it is over pressurized the compressor will shut down as well, but that is not what your DIC message is showing. At this point I don't know if you are over or under pressurized. You need to take it to a qualified A/C tech.
    I hooked it up right, it blew out between the can and the top connector piece where the can screws to the guage/hose attachment

    It's been over pressurized since I got the car... That's why I use the AC nonstop

    AC Worked fine til these fans broke or stopped working properly



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  11. #41
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    Re: Coolant Steam coming thru AC dash vent

    Are there any other AC components I can check that are not related to the Fuse or Relay in the fuse block under the hood ???

  12. #42
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    Re: Coolant Steam coming thru AC dash vent

    It's been over pressurized since I got the car...
    That's why I use the AC nonstop

    PLEASE explain the logic in this -

    The can im using is this...
    http://www.ebay.com/itm/A-C-Pro-Prof...b2defe&vxp=mtr
    YOU SHOULD BE FLOGGED!!!!!

    what have we told you about STOP-LEAK products -
    and now you are dumping that crap into the AC system too -
    ------------------------
    we ALWAYS ask for the ACTUAL PRESSURE READING -
    for BOTH the HIGH and LOW sides -
    because that is the ONLY way to diagnose an AC problem -

    when the AC is off - the pressure in the system equalizes -
    so BOTH sides will show the same pressure -
    somewhere in the 60 to 90PSI range -
    this is the STATIC PRESSURE - and means NOTHING -
    except there is some freon in the system -

    the can of freon is under pressure - probably around 70 to 80PSI -

    IF you connect the can to your system -
    and IF your system has a greater pressure than the can -
    your system is trying to pump freon INTO THE CAN -

    when the AC is running PROPERLY -
    both the HIGH and LOW pressure readings will vary -
    depending on ambient - outside - temperature -

    if it was 80* outside -
    I would expect to see LOW pressures around 25 to 28PSI -
    and HIGH pressures around 175 to 225PSI -

    in 95* temperature - pressures will be much higher -
    35 to 40PSI on the LOW - and 250 to 300 on the HIGH -

    when you overcharge the system - the pressures run too high -
    the system doesn't run properly - and runs too hot -
    the freon has a hard time changing to a gas -
    the hot liquid freon can't transfer the heat -
    PLUS the PROBABILITY of damaging the compressor -
    or blowing a hole in the the condenser -

    if you are getting a LOW FREON warning on the DIC -
    and the system IS actually OVER-PRESSURED -
    someone has "re-engineered" the electrical system -
    and has possibly by-passed the safety pressure sensors in the system -

  13. #43
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    Re: Coolant Steam coming thru AC dash vent

    Quote Originally Posted by basscatt View Post
    It's been over pressurized since I got the car...
    That's why I use the AC nonstop

    PLEASE explain the logic in this -

    The can im using is this...
    http://www.ebay.com/itm/A-C-Pro-Prof...b2defe&vxp=mtr
    YOU SHOULD BE FLOGGED!!!!!

    what have we told you about STOP-LEAK products -
    and now you are dumping that crap into the AC system too -
    ------------------------
    we ALWAYS ask for the ACTUAL PRESSURE READING -
    for BOTH the HIGH and LOW sides -
    because that is the ONLY way to diagnose an AC problem -

    when the AC is off - the pressure in the system equalizes -
    so BOTH sides will show the same pressure -
    somewhere in the 60 to 90PSI range -
    this is the STATIC PRESSURE - and means NOTHING -
    except there is some freon in the system -

    the can of freon is under pressure - probably around 70 to 80PSI -

    IF you connect the can to your system -
    and IF your system has a greater pressure than the can -
    your system is trying to pump freon INTO THE CAN -

    when the AC is running PROPERLY -
    both the HIGH and LOW pressure readings will vary -
    depending on ambient - outside - temperature -

    if it was 80* outside -
    I would expect to see LOW pressures around 25 to 28PSI -
    and HIGH pressures around 175 to 225PSI -

    in 95* temperature - pressures will be much higher -
    35 to 40PSI on the LOW - and 250 to 300 on the HIGH -

    when you overcharge the system - the pressures run too high -
    the system doesn't run properly - and runs too hot -
    the freon has a hard time changing to a gas -
    the hot liquid freon can't transfer the heat -
    PLUS the PROBABILITY of damaging the compressor -
    or blowing a hole in the the condenser -

    if you are getting a LOW FREON warning on the DIC -
    and the system IS actually OVER-PRESSURED -
    someone has "re-engineered" the electrical system -
    and has possibly by-passed the safety pressure sensors in the system -
    "what have we told you about STOP-LEAK products "

    I BOUGHT THE CAN THE ADVANCE GUY SAID WAS THE RIGHT ONE, IVE HAD IT OVER A YEAR... DIDNT KNOW IT WAS STOP LEAK BC I WAS DUMB ENOUGH NOT TO READ IT BC I TRUSTED THAT THE ADVANCE GUY KNEW WHAT HE WAS DOING

    I can say im extremely upset that that's what I tried to jus pump into my AC... I hope that guy is still at that store

    "when the AC is off - the pressure in the system equalizes -
    so BOTH sides will show the same pressure -
    somewhere in the 60 to 90PSI range -
    this is the STATIC PRESSURE - and means NOTHING -
    except there is some freon in the system - "


    I checked it with the engine and ac on like Ranger said, that's when it back fired a lil bit from the can... the gauge on the can says the Low Side is a lil over 100psi... I cant check the High Side bc the adapter doesn't fit that connector

    "It's been over pressurized since I got the car...
    That's why I use the AC nonstop

    PLEASE explain the logic in this
    -"

    I'm not sure I understand... But all im saying is when I bought the car, the ac didn't work bc the previous owner hot wired the fans to the ignition so they ran all the time at start up... consequently, the AC compressor did not run in that condition bc (again, as I understood it) the circuitry was bypassed... Ofcourse checking the refrigerant was the first thing we did since the IC displayed the "Low Refrigerant-AC off" all the time... But When we discovered the Hot Wired fans and Connected them properly, the "Low Refrigerant" code was cleared and then the Compressor ran fine... up until my cooling fan problem a few days ago now

    Ive been running the AC pretty much all the time since the day it was fixed without issue... bc I understood it was over pressurized, I figured using it all the time would bring it down significantly... but it hasn't.

    What is the Proper AC Recharge can to get???

  14. #44
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    Re: Coolant Steam coming thru AC dash vent

    Quote Originally Posted by SUPER LAC DEVILLE View Post
    [B]
    I BOUGHT THE CAN THE ADVANCE GUY SAID WAS THE RIGHT ONE, IVE HAD IT OVER A YEAR... DIDNT KNOW IT WAS STOP LEAK BC I WAS DUMB ENOUGH NOT TO READ IT BC I TRUSTED THAT THE ADVANCE GUY KNEW WHAT HE WAS DOING
    Oh boy. I completely missed that part. Never trust parts store counter clerks. They are sales clerks. Nothing more.


    I can say im extremely upset that that's what I tried to jus pump into my AC... I hope that guy is still at that store
    Don't waste your time. He'll tell you we don't know what we're talking about and you can't trust internet advice.


    I checked it with the engine and ac on like Ranger said, that's when it back fired a lil bit from the can... the gauge on the can says the Low Side is a lil over 100psi... I cant check the High Side bc the adapter doesn't fit that connector
    There is good reason for that. It's so guys like you don't blow their hands off.



    I'm not sure I understand...
    That's the problem and why you should let someone who does, take care of it.


    Ive been running the AC pretty much all the time since the day it was fixed without issue... bc I understood it was over pressurized, I figured using it all the time would bring it down significantly... but it hasn't.
    What makes you think refrigerant is consumable? It's not like gasoline. It's like brake, or trans fluid or coolant.

    You REALLY need to let a tech look at it before you hurt yourself or do any damage (assuming none has been done yet)

  15. #45
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    Quote Originally Posted by Ranger View Post
    Oh boy. I comp[letely missed that part. Never trust parts store counter clerks. They are sales clerks. Nothing more.


    Don't waste your time. He'll tell you we don't know what we're talking about and you can't trust internet advice.

    There is good reason for that. It's so guys like you don't blow their hands off.




    That's the problem and why you should let someone who does, take care of it.



    What makes you think refrigerant is consumable? It's not like gasoline. It's like brake, or trans fluid or coolant.

    You REALLY need to let a tech look at it before you hurt yourself or do any damage (assuming none has been done yet)
    I agree I need an AC Tech but I'm determined to figure this out

    So I jus went under the hood again checking wires leading to the AC line
    I guess they're sensors
    As I checked one the engine idle dropped a lil but I didn't hear the click of the compressor
    The AC is on now but the driver side fan isn't running at all

    Bad AC Sensor?
    Driver side Fan?

    I'm so confused


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