2005 Lincoln Town Car AC recharge problem
The Derfer
EZ Chill R134a.
Here's what happened: after about 5 minutes of releasing the
refrigerant into the low side fill input, I got it to the roughly
50-55
psi pressure recommended for this, a 2005 Lincoln Town Car.
Now I have a new problem: the clutch clicks every 5 seconds or so,
and, with the gauge attached, I see the pressure go up to 55 then down
to
about 15 with each click, then back up again and so on over and over
again.
And sure enough, the AC does not blow cold inside. I did everything
"the can told me" and I know I released the refrigerant into the right
place.
Why is the pressure varying so much with the clicks and how come no
col air? The can still has refrigerant in it.
Upon initial measurement with the gauge, the pressure was barely 10-15
psi.
Thanks in advance to anyone who can help.
Kevin Bottorff
bf345f...@q40g2000prh.googlegroups.com:
You don`t have enough refrig in yet, that is why the cycling. you need
to find some one that knows what he is doing if this confuses you. it is
too complicated for your knowlage. KB
Tim J.
When the pressure goes down to 15, what is the high side pressure? You
may not yet have enough gas in the system, or a plugged expansion
orifice. I'm betting on the former. And do you have any idea what
happened to the gas you're having to replace? If you have a leak,
adding more 134a is just being wasteful. I suspect you have a slow
leak somewhere.
Scott Dorsey
>
>Now I have a new problem: the clutch clicks every 5 seconds or so,
>and, with the gauge attached, I see the pressure go up to 55 then down
>to
>about 15 with each click, then back up again and so on over and over
>again.
>And sure enough, the AC does not blow cold inside. I did everything
>"the can told me" and I know I released the refrigerant into the right
>place.
>Why is the pressure varying so much with the clicks and how come no
>col air? The can still has refrigerant in it.
What's happening is that the compressor clutch is engaging, and then
it's being disengaged when the system pressures don't come up properly.
This could be because there is a clog in the system, it could be because
there is too little freon in the system, or it could because there is
too much. Or maybe a pressure switch is bad.
You need to be able to measure both the high and low side pressures in
order to make a real diagnosis.
--scott
--
"C'est un Nagra. C'est suisse, et tres, tres precis."
m6onz5a
It sounds like you don't have enough freon in the system yet, but I've
also seen where too much freon causes this problem too.
Did that can of EZ chill have a stop leak built in?? It's possible
your orifice tube might be clogged.
Bill
>I recharged my AC myself with one of those cans of
>
A/C pressures need to be "just right" depending also on what the
outside temperature is!
Too low and it will not work. Too high and it will not work. And the
low side pressure needs to be low with the compressor running, the
high side pressure needs to be "just right".
Then fans may turn on depending on pressures. A system with the
correct pressures but non-working fans/pressure sensors will not cool
very well under certain situations.
And then there are internal to the car dampers (air directors) which
cause cool / warm air to come out the vents. If this portion of the
system is not working right, the A/C might be working just fine, yet
warm air will come out the vents!
With that said, you need to buy a factory service manual set of books
for your specific vehicle (can be 4 books to the set-buy from dealer),
buy the proper tools, then read the A/C section which can be 80 pages
in itself. Understand how everything works, THEN diagnose the
problem...
The Derfer
Now I've emptied the rest of the can in there. The pressure goes up
to 55 psi, clicks, goes down to ~15,
then goes steadily back up, repeats this over and over.
I don't have anything that will fit the high side to measure that.
Scott Dorsey
>The can does feature stop-leak, for whatever that's worth.
That's not good.
>Now I've emptied the rest of the can in there. The pressure goes up
>to 55 psi, clicks, goes down to ~15,
>then goes steadily back up, repeats this over and over.
>I don't have anything that will fit the high side to measure that.
Well, get a real gauge set or take it to someone who has one before you
wind up damaging the thing.
tucken...@sbcglobal.net
I have a 2006 Town Car
I think it may be to much,,, the directions also says don't over fill,,,, so be careful,,,,
I didn't use a gauge, I did a little with air conditioner on high, then drove car,,,, it started slowly then build up colder and colder,,,,
And this is my first time doing it, I may put more in later
Vic