94 Grand Cherokee - Where is my orifice tube in the A/C?
07-14-2006, 10:05 PM
#11
Guest
Posts: n/a
Re: 94 Grand Cherokee - Where is my orifice tube in the A/C?
Hi Bill,
This was 134a from the factory. My A/C would not stay cold. The
compressor kept getting hot and the clutch would stick. I have taken
the lines loose at the firewall where they attach to the evaporator.
Thought the orifice tube would be there but it isn't. I have removed
the accumulator and am installing a new one. I tried to blow air thru
the lines with my compressor but it seems the something is in the
lines. Less air coming out than going in. I thought that maybe there
was an orifice tube somewhere partially blocking the air flow but I
cannot find one.
I need to put this Jeep back together but want to make sure the lines
are properly flushed and free of old oil, etc first.
Thanks,
Mike Stanley in North Carolina....
L.W.(Bill) ------ III wrote:
> Did '94 still have R-12 in it, needing to change that orifice for
> R-134? Anyway, I use an easy out on the tube running into the
> accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
> http://members.tripod.com/~jbabs714/autoac.htm
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Mikey52 wrote:
> >
> > I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> > finding the orifice tube that is supposed to be in the lines. However,
> > I have taken them all loose and cannot find one. Doe the 94 Grand
> > Cherokee have a seperate orfice tube? The guy at the parts house give
> > me one with my new accumulator and compressor but cannot find a place
> > to stick it?
> > Thanks, Mike...
This was 134a from the factory. My A/C would not stay cold. The
compressor kept getting hot and the clutch would stick. I have taken
the lines loose at the firewall where they attach to the evaporator.
Thought the orifice tube would be there but it isn't. I have removed
the accumulator and am installing a new one. I tried to blow air thru
the lines with my compressor but it seems the something is in the
lines. Less air coming out than going in. I thought that maybe there
was an orifice tube somewhere partially blocking the air flow but I
cannot find one.
I need to put this Jeep back together but want to make sure the lines
are properly flushed and free of old oil, etc first.
Thanks,
Mike Stanley in North Carolina....
L.W.(Bill) ------ III wrote:
> Did '94 still have R-12 in it, needing to change that orifice for
> R-134? Anyway, I use an easy out on the tube running into the
> accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
> http://members.tripod.com/~jbabs714/autoac.htm
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Mikey52 wrote:
> >
> > I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> > finding the orifice tube that is supposed to be in the lines. However,
> > I have taken them all loose and cannot find one. Doe the 94 Grand
> > Cherokee have a seperate orfice tube? The guy at the parts house give
> > me one with my new accumulator and compressor but cannot find a place
> > to stick it?
> > Thanks, Mike...
07-14-2006, 10:05 PM
#12
Guest
Posts: n/a
Re: 94 Grand Cherokee - Where is my orifice tube in the A/C?
Hi Bill,
This was 134a from the factory. My A/C would not stay cold. The
compressor kept getting hot and the clutch would stick. I have taken
the lines loose at the firewall where they attach to the evaporator.
Thought the orifice tube would be there but it isn't. I have removed
the accumulator and am installing a new one. I tried to blow air thru
the lines with my compressor but it seems the something is in the
lines. Less air coming out than going in. I thought that maybe there
was an orifice tube somewhere partially blocking the air flow but I
cannot find one.
I need to put this Jeep back together but want to make sure the lines
are properly flushed and free of old oil, etc first.
Thanks,
Mike Stanley in North Carolina....
L.W.(Bill) ------ III wrote:
> Did '94 still have R-12 in it, needing to change that orifice for
> R-134? Anyway, I use an easy out on the tube running into the
> accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
> http://members.tripod.com/~jbabs714/autoac.htm
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Mikey52 wrote:
> >
> > I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> > finding the orifice tube that is supposed to be in the lines. However,
> > I have taken them all loose and cannot find one. Doe the 94 Grand
> > Cherokee have a seperate orfice tube? The guy at the parts house give
> > me one with my new accumulator and compressor but cannot find a place
> > to stick it?
> > Thanks, Mike...
This was 134a from the factory. My A/C would not stay cold. The
compressor kept getting hot and the clutch would stick. I have taken
the lines loose at the firewall where they attach to the evaporator.
Thought the orifice tube would be there but it isn't. I have removed
the accumulator and am installing a new one. I tried to blow air thru
the lines with my compressor but it seems the something is in the
lines. Less air coming out than going in. I thought that maybe there
was an orifice tube somewhere partially blocking the air flow but I
cannot find one.
I need to put this Jeep back together but want to make sure the lines
are properly flushed and free of old oil, etc first.
Thanks,
Mike Stanley in North Carolina....
L.W.(Bill) ------ III wrote:
> Did '94 still have R-12 in it, needing to change that orifice for
> R-134? Anyway, I use an easy out on the tube running into the
> accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
> http://members.tripod.com/~jbabs714/autoac.htm
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Mikey52 wrote:
> >
> > I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> > finding the orifice tube that is supposed to be in the lines. However,
> > I have taken them all loose and cannot find one. Doe the 94 Grand
> > Cherokee have a seperate orfice tube? The guy at the parts house give
> > me one with my new accumulator and compressor but cannot find a place
> > to stick it?
> > Thanks, Mike...
07-14-2006, 10:05 PM
#13
Guest
Posts: n/a
Re: 94 Grand Cherokee - Where is my orifice tube in the A/C?
Hi Bill,
This was 134a from the factory. My A/C would not stay cold. The
compressor kept getting hot and the clutch would stick. I have taken
the lines loose at the firewall where they attach to the evaporator.
Thought the orifice tube would be there but it isn't. I have removed
the accumulator and am installing a new one. I tried to blow air thru
the lines with my compressor but it seems the something is in the
lines. Less air coming out than going in. I thought that maybe there
was an orifice tube somewhere partially blocking the air flow but I
cannot find one.
I need to put this Jeep back together but want to make sure the lines
are properly flushed and free of old oil, etc first.
Thanks,
Mike Stanley in North Carolina....
L.W.(Bill) ------ III wrote:
> Did '94 still have R-12 in it, needing to change that orifice for
> R-134? Anyway, I use an easy out on the tube running into the
> accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
> http://members.tripod.com/~jbabs714/autoac.htm
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Mikey52 wrote:
> >
> > I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> > finding the orifice tube that is supposed to be in the lines. However,
> > I have taken them all loose and cannot find one. Doe the 94 Grand
> > Cherokee have a seperate orfice tube? The guy at the parts house give
> > me one with my new accumulator and compressor but cannot find a place
> > to stick it?
> > Thanks, Mike...
This was 134a from the factory. My A/C would not stay cold. The
compressor kept getting hot and the clutch would stick. I have taken
the lines loose at the firewall where they attach to the evaporator.
Thought the orifice tube would be there but it isn't. I have removed
the accumulator and am installing a new one. I tried to blow air thru
the lines with my compressor but it seems the something is in the
lines. Less air coming out than going in. I thought that maybe there
was an orifice tube somewhere partially blocking the air flow but I
cannot find one.
I need to put this Jeep back together but want to make sure the lines
are properly flushed and free of old oil, etc first.
Thanks,
Mike Stanley in North Carolina....
L.W.(Bill) ------ III wrote:
> Did '94 still have R-12 in it, needing to change that orifice for
> R-134? Anyway, I use an easy out on the tube running into the
> accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
> http://members.tripod.com/~jbabs714/autoac.htm
> God Bless America, Bill O|||||||O
> mailto:-------------------- http://www.----------.com/
>
> Mikey52 wrote:
> >
> > I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> > finding the orifice tube that is supposed to be in the lines. However,
> > I have taken them all loose and cannot find one. Doe the 94 Grand
> > Cherokee have a seperate orfice tube? The guy at the parts house give
> > me one with my new accumulator and compressor but cannot find a place
> > to stick it?
> > Thanks, Mike...
07-14-2006, 10:46 PM
#14
Guest
Posts: n/a
Re: 94 Grand Cherokee - Where is my orifice tube in the A/C?
Dunno if this will help, but in the 95 fsm, there is text [no pictures
or drawings] that repeatedly just notes that the fixed orifice tube is
in the liquid line near the condensor... and that if it is dirty or
clogged the liquid line is what is replaced. All references are as
uninformative.
Mikey52 proclaimed:
> Hi Bill,
> This was 134a from the factory. My A/C would not stay cold. The
> compressor kept getting hot and the clutch would stick. I have taken
> the lines loose at the firewall where they attach to the evaporator.
> Thought the orifice tube would be there but it isn't. I have removed
> the accumulator and am installing a new one. I tried to blow air thru
> the lines with my compressor but it seems the something is in the
> lines. Less air coming out than going in. I thought that maybe there
> was an orifice tube somewhere partially blocking the air flow but I
> cannot find one.
> I need to put this Jeep back together but want to make sure the lines
> are properly flushed and free of old oil, etc first.
> Thanks,
> Mike Stanley in North Carolina....
>
> L.W.(Bill) ------ III wrote:
>
>>Did '94 still have R-12 in it, needing to change that orifice for
>>R-134? Anyway, I use an easy out on the tube running into the
>>accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
>>http://members.tripod.com/~jbabs714/autoac.htm
>> God Bless America, Bill O|||||||O
>>mailto:-------------------- http://www.----------.com/
>>
>>Mikey52 wrote:
>>
>>>I am changing the A/C compressor on my Jeep GC 5.2. I have tried
>>>finding the orifice tube that is supposed to be in the lines. However,
>>>I have taken them all loose and cannot find one. Doe the 94 Grand
>>>Cherokee have a seperate orfice tube? The guy at the parts house give
>>>me one with my new accumulator and compressor but cannot find a place
>>>to stick it?
>>>Thanks, Mike...
>
>
or drawings] that repeatedly just notes that the fixed orifice tube is
in the liquid line near the condensor... and that if it is dirty or
clogged the liquid line is what is replaced. All references are as
uninformative.
Mikey52 proclaimed:
> Hi Bill,
> This was 134a from the factory. My A/C would not stay cold. The
> compressor kept getting hot and the clutch would stick. I have taken
> the lines loose at the firewall where they attach to the evaporator.
> Thought the orifice tube would be there but it isn't. I have removed
> the accumulator and am installing a new one. I tried to blow air thru
> the lines with my compressor but it seems the something is in the
> lines. Less air coming out than going in. I thought that maybe there
> was an orifice tube somewhere partially blocking the air flow but I
> cannot find one.
> I need to put this Jeep back together but want to make sure the lines
> are properly flushed and free of old oil, etc first.
> Thanks,
> Mike Stanley in North Carolina....
>
> L.W.(Bill) ------ III wrote:
>
>>Did '94 still have R-12 in it, needing to change that orifice for
>>R-134? Anyway, I use an easy out on the tube running into the
>>accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
>>http://members.tripod.com/~jbabs714/autoac.htm
>> God Bless America, Bill O|||||||O
>>mailto:-------------------- http://www.----------.com/
>>
>>Mikey52 wrote:
>>
>>>I am changing the A/C compressor on my Jeep GC 5.2. I have tried
>>>finding the orifice tube that is supposed to be in the lines. However,
>>>I have taken them all loose and cannot find one. Doe the 94 Grand
>>>Cherokee have a seperate orfice tube? The guy at the parts house give
>>>me one with my new accumulator and compressor but cannot find a place
>>>to stick it?
>>>Thanks, Mike...
>
>
07-14-2006, 10:46 PM
#15
Guest
Posts: n/a
Re: 94 Grand Cherokee - Where is my orifice tube in the A/C?
Dunno if this will help, but in the 95 fsm, there is text [no pictures
or drawings] that repeatedly just notes that the fixed orifice tube is
in the liquid line near the condensor... and that if it is dirty or
clogged the liquid line is what is replaced. All references are as
uninformative.
Mikey52 proclaimed:
> Hi Bill,
> This was 134a from the factory. My A/C would not stay cold. The
> compressor kept getting hot and the clutch would stick. I have taken
> the lines loose at the firewall where they attach to the evaporator.
> Thought the orifice tube would be there but it isn't. I have removed
> the accumulator and am installing a new one. I tried to blow air thru
> the lines with my compressor but it seems the something is in the
> lines. Less air coming out than going in. I thought that maybe there
> was an orifice tube somewhere partially blocking the air flow but I
> cannot find one.
> I need to put this Jeep back together but want to make sure the lines
> are properly flushed and free of old oil, etc first.
> Thanks,
> Mike Stanley in North Carolina....
>
> L.W.(Bill) ------ III wrote:
>
>>Did '94 still have R-12 in it, needing to change that orifice for
>>R-134? Anyway, I use an easy out on the tube running into the
>>accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
>>http://members.tripod.com/~jbabs714/autoac.htm
>> God Bless America, Bill O|||||||O
>>mailto:-------------------- http://www.----------.com/
>>
>>Mikey52 wrote:
>>
>>>I am changing the A/C compressor on my Jeep GC 5.2. I have tried
>>>finding the orifice tube that is supposed to be in the lines. However,
>>>I have taken them all loose and cannot find one. Doe the 94 Grand
>>>Cherokee have a seperate orfice tube? The guy at the parts house give
>>>me one with my new accumulator and compressor but cannot find a place
>>>to stick it?
>>>Thanks, Mike...
>
>
or drawings] that repeatedly just notes that the fixed orifice tube is
in the liquid line near the condensor... and that if it is dirty or
clogged the liquid line is what is replaced. All references are as
uninformative.
Mikey52 proclaimed:
> Hi Bill,
> This was 134a from the factory. My A/C would not stay cold. The
> compressor kept getting hot and the clutch would stick. I have taken
> the lines loose at the firewall where they attach to the evaporator.
> Thought the orifice tube would be there but it isn't. I have removed
> the accumulator and am installing a new one. I tried to blow air thru
> the lines with my compressor but it seems the something is in the
> lines. Less air coming out than going in. I thought that maybe there
> was an orifice tube somewhere partially blocking the air flow but I
> cannot find one.
> I need to put this Jeep back together but want to make sure the lines
> are properly flushed and free of old oil, etc first.
> Thanks,
> Mike Stanley in North Carolina....
>
> L.W.(Bill) ------ III wrote:
>
>>Did '94 still have R-12 in it, needing to change that orifice for
>>R-134? Anyway, I use an easy out on the tube running into the
>>accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
>>http://members.tripod.com/~jbabs714/autoac.htm
>> God Bless America, Bill O|||||||O
>>mailto:-------------------- http://www.----------.com/
>>
>>Mikey52 wrote:
>>
>>>I am changing the A/C compressor on my Jeep GC 5.2. I have tried
>>>finding the orifice tube that is supposed to be in the lines. However,
>>>I have taken them all loose and cannot find one. Doe the 94 Grand
>>>Cherokee have a seperate orfice tube? The guy at the parts house give
>>>me one with my new accumulator and compressor but cannot find a place
>>>to stick it?
>>>Thanks, Mike...
>
>
07-14-2006, 10:46 PM
#16
Guest
Posts: n/a
Re: 94 Grand Cherokee - Where is my orifice tube in the A/C?
Dunno if this will help, but in the 95 fsm, there is text [no pictures
or drawings] that repeatedly just notes that the fixed orifice tube is
in the liquid line near the condensor... and that if it is dirty or
clogged the liquid line is what is replaced. All references are as
uninformative.
Mikey52 proclaimed:
> Hi Bill,
> This was 134a from the factory. My A/C would not stay cold. The
> compressor kept getting hot and the clutch would stick. I have taken
> the lines loose at the firewall where they attach to the evaporator.
> Thought the orifice tube would be there but it isn't. I have removed
> the accumulator and am installing a new one. I tried to blow air thru
> the lines with my compressor but it seems the something is in the
> lines. Less air coming out than going in. I thought that maybe there
> was an orifice tube somewhere partially blocking the air flow but I
> cannot find one.
> I need to put this Jeep back together but want to make sure the lines
> are properly flushed and free of old oil, etc first.
> Thanks,
> Mike Stanley in North Carolina....
>
> L.W.(Bill) ------ III wrote:
>
>>Did '94 still have R-12 in it, needing to change that orifice for
>>R-134? Anyway, I use an easy out on the tube running into the
>>accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
>>http://members.tripod.com/~jbabs714/autoac.htm
>> God Bless America, Bill O|||||||O
>>mailto:-------------------- http://www.----------.com/
>>
>>Mikey52 wrote:
>>
>>>I am changing the A/C compressor on my Jeep GC 5.2. I have tried
>>>finding the orifice tube that is supposed to be in the lines. However,
>>>I have taken them all loose and cannot find one. Doe the 94 Grand
>>>Cherokee have a seperate orfice tube? The guy at the parts house give
>>>me one with my new accumulator and compressor but cannot find a place
>>>to stick it?
>>>Thanks, Mike...
>
>
or drawings] that repeatedly just notes that the fixed orifice tube is
in the liquid line near the condensor... and that if it is dirty or
clogged the liquid line is what is replaced. All references are as
uninformative.
Mikey52 proclaimed:
> Hi Bill,
> This was 134a from the factory. My A/C would not stay cold. The
> compressor kept getting hot and the clutch would stick. I have taken
> the lines loose at the firewall where they attach to the evaporator.
> Thought the orifice tube would be there but it isn't. I have removed
> the accumulator and am installing a new one. I tried to blow air thru
> the lines with my compressor but it seems the something is in the
> lines. Less air coming out than going in. I thought that maybe there
> was an orifice tube somewhere partially blocking the air flow but I
> cannot find one.
> I need to put this Jeep back together but want to make sure the lines
> are properly flushed and free of old oil, etc first.
> Thanks,
> Mike Stanley in North Carolina....
>
> L.W.(Bill) ------ III wrote:
>
>>Did '94 still have R-12 in it, needing to change that orifice for
>>R-134? Anyway, I use an easy out on the tube running into the
>>accumulator: http://www.f11view.net/misc/ac_retrofit_problem.html
>>http://members.tripod.com/~jbabs714/autoac.htm
>> God Bless America, Bill O|||||||O
>>mailto:-------------------- http://www.----------.com/
>>
>>Mikey52 wrote:
>>
>>>I am changing the A/C compressor on my Jeep GC 5.2. I have tried
>>>finding the orifice tube that is supposed to be in the lines. However,
>>>I have taken them all loose and cannot find one. Doe the 94 Grand
>>>Cherokee have a seperate orfice tube? The guy at the parts house give
>>>me one with my new accumulator and compressor but cannot find a place
>>>to stick it?
>>>Thanks, Mike...
>
>
07-15-2006, 12:58 AM
#17
Guest
Posts: n/a
Re: 94 Grand Cherokee - Where is my orifice tube in the A/C?
Mikey52 wrote:
> I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> finding the orifice tube that is supposed to be in the lines. However,
> I have taken them all loose and cannot find one. Doe the 94 Grand
> Cherokee have a seperate orfice tube? The guy at the parts house give
> me one with my new accumulator and compressor but cannot find a place
> to stick it?
According to my book it's in the evaporator inlet pipe (liquid line)
Probably not in the hose but in the hard line just before the evaporator
coil? Never took mine apart.
--
DougW
> I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> finding the orifice tube that is supposed to be in the lines. However,
> I have taken them all loose and cannot find one. Doe the 94 Grand
> Cherokee have a seperate orfice tube? The guy at the parts house give
> me one with my new accumulator and compressor but cannot find a place
> to stick it?
According to my book it's in the evaporator inlet pipe (liquid line)
Probably not in the hose but in the hard line just before the evaporator
coil? Never took mine apart.
--
DougW
07-15-2006, 12:58 AM
#18
Guest
Posts: n/a
Re: 94 Grand Cherokee - Where is my orifice tube in the A/C?
Mikey52 wrote:
> I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> finding the orifice tube that is supposed to be in the lines. However,
> I have taken them all loose and cannot find one. Doe the 94 Grand
> Cherokee have a seperate orfice tube? The guy at the parts house give
> me one with my new accumulator and compressor but cannot find a place
> to stick it?
According to my book it's in the evaporator inlet pipe (liquid line)
Probably not in the hose but in the hard line just before the evaporator
coil? Never took mine apart.
--
DougW
> I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> finding the orifice tube that is supposed to be in the lines. However,
> I have taken them all loose and cannot find one. Doe the 94 Grand
> Cherokee have a seperate orfice tube? The guy at the parts house give
> me one with my new accumulator and compressor but cannot find a place
> to stick it?
According to my book it's in the evaporator inlet pipe (liquid line)
Probably not in the hose but in the hard line just before the evaporator
coil? Never took mine apart.
--
DougW
07-15-2006, 12:58 AM
#19
Guest
Posts: n/a
Re: 94 Grand Cherokee - Where is my orifice tube in the A/C?
Mikey52 wrote:
> I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> finding the orifice tube that is supposed to be in the lines. However,
> I have taken them all loose and cannot find one. Doe the 94 Grand
> Cherokee have a seperate orfice tube? The guy at the parts house give
> me one with my new accumulator and compressor but cannot find a place
> to stick it?
According to my book it's in the evaporator inlet pipe (liquid line)
Probably not in the hose but in the hard line just before the evaporator
coil? Never took mine apart.
--
DougW
> I am changing the A/C compressor on my Jeep GC 5.2. I have tried
> finding the orifice tube that is supposed to be in the lines. However,
> I have taken them all loose and cannot find one. Doe the 94 Grand
> Cherokee have a seperate orfice tube? The guy at the parts house give
> me one with my new accumulator and compressor but cannot find a place
> to stick it?
According to my book it's in the evaporator inlet pipe (liquid line)
Probably not in the hose but in the hard line just before the evaporator
coil? Never took mine apart.
--
DougW
07-18-2006, 02:20 AM
#20
Guest
Posts: n/a
Re: 94 Grand Cherokee - Where is my orifice tube in the A/C?
I think it's near the condensor. Kind of a strange place but that would
explain condensation dripping off the entire line connecting condensor to
evaporator, a line that is normally a warm liquid line on the high pressure
side. Yet on the GC it's after the orifice and thus is part of the low
pressure side (note where your LP service valve is). I'm no expert but to
me it seems strange not to have a variable expansion valve on a system with
wildly fluctuating compressor speeds but that's how they do it, clutch
switching only.
explain condensation dripping off the entire line connecting condensor to
evaporator, a line that is normally a warm liquid line on the high pressure
side. Yet on the GC it's after the orifice and thus is part of the low
pressure side (note where your LP service valve is). I'm no expert but to
me it seems strange not to have a variable expansion valve on a system with
wildly fluctuating compressor speeds but that's how they do it, clutch
switching only.
