How much should it cost to replace a 2001 Nissan Sentra expansion valve?
Q. Is this even what I should be replacing? I have a 2001 Nissan Sentra that has under 85000 miles and as of this summer the AC has stopped working. Air still blows out, but it is not cool as the compressor is not turning on. If you open the hood and take a listen, you hear no difference from when the AC is on or not. Innitially, I tried using an AC charger kit and obviously that was not the problem. Then I thought that the compressor needed to be replaced, but I think it is much too early for that to go on the car. I brought it to a mechanic that specializes in foreign cars and he said that it was the expansion valve that needed to be replaced and that it would cost $440.00. I've found the part online for $40 - does labor really need… [cont.]
Asked by jen9382 - Tue Jul 24 16:18:56 2007 - - 1 Answers - 0 Comments
A. Always get a second opinion, but it really could be that high. Depending on your location (hourly labor charges vary) the labor could be something like $65 and hour. On many cars this valve is located in the dashboard, in a box, connected to the a/c cooling lines. So this basically means, taking the coolant out of the lines with a recovery machine, taking apart the dash (in the area around the glovebox) and taking the part out, replacement of the part, pumping the system down to a vacumn to get any air out, and then refilling the coolant. This is a pretty intensive procedure, but I really cant figure out how the mechanic would determine that it was the expansion valve from what you wrote. If you tried a recharge kit, did you… [cont.]
Answered by Mike M - Fri Jul 27 09:48:27 2007
Q. Is this even what I should be replacing? I have a 2001 Nissan Sentra that has under 85000 miles and as of this summer the AC has stopped working. Air still blows out, but it is not cool as the compressor is not turning on. If you open the hood and take a listen, you hear no difference from when the AC is on or not. Innitially, I tried using an AC charger kit and obviously that was not the problem. Then I thought that the compressor needed to be replaced, but I think it is much too early for that to go on the car. I brought it to a mechanic that specializes in foreign cars and he said that it was the expansion valve that needed to be replaced and that it would cost $440.00. I've found the part online for $40 - does labor really need… [cont.]
Asked by jen9382 - Tue Jul 24 16:18:56 2007 - - 1 Answers - 0 Comments
A. Always get a second opinion, but it really could be that high. Depending on your location (hourly labor charges vary) the labor could be something like $65 and hour. On many cars this valve is located in the dashboard, in a box, connected to the a/c cooling lines. So this basically means, taking the coolant out of the lines with a recovery machine, taking apart the dash (in the area around the glovebox) and taking the part out, replacement of the part, pumping the system down to a vacumn to get any air out, and then refilling the coolant. This is a pretty intensive procedure, but I really cant figure out how the mechanic would determine that it was the expansion valve from what you wrote. If you tried a recharge kit, did you… [cont.]
Answered by Mike M - Fri Jul 27 09:48:27 2007
When the refrigerant goes throught the expansion valve in an air-con or fridge, it evaporates. Why?
Q. I know that when it goes through the compressor, pressure increases and thus it condenses back into liquid, making it hotter. But how does it get to a gas in the first place? The refrigerant goes through the expansion valve and decreases in pressure, and evaporates as a result. Why does it evaporate in lower pressure? Thanks in advance. I really appreciate any help. Will give 10 points.
Asked by AFL Fanatic - Mon Apr 28 04:33:05 2008 - - 2 Answers - 0 Comments
A. The boiling temperature of the coolant is lower on the low pressure side of the valve. It boils for the same reason that warm water boils when you pump the air out of its container. If the coolant is not already warm enough to boil when it comes out of the valve, it soon absorbs enough heat from the cooling coils to make it boil. Going thru the compressor again raises the pressure so that the boiling point is again higher than the coolant's temperature. Compression also raises the temperature of the coolant.
Answered by Philip J - Mon Apr 28 05:01:27 2008
Q. I know that when it goes through the compressor, pressure increases and thus it condenses back into liquid, making it hotter. But how does it get to a gas in the first place? The refrigerant goes through the expansion valve and decreases in pressure, and evaporates as a result. Why does it evaporate in lower pressure? Thanks in advance. I really appreciate any help. Will give 10 points.
Asked by AFL Fanatic - Mon Apr 28 04:33:05 2008 - - 2 Answers - 0 Comments
A. The boiling temperature of the coolant is lower on the low pressure side of the valve. It boils for the same reason that warm water boils when you pump the air out of its container. If the coolant is not already warm enough to boil when it comes out of the valve, it soon absorbs enough heat from the cooling coils to make it boil. Going thru the compressor again raises the pressure so that the boiling point is again higher than the coolant's temperature. Compression also raises the temperature of the coolant.
Answered by Philip J - Mon Apr 28 05:01:27 2008
How do I replace the expansion valve on a 2004 Jeep Grand Cherokee?
Q. I have a 2004 Jeep Grand Cherokee Laredo with a straight 6 cyl. motor. I need to replace the expansion valve on the A/C system. Is this something I can do myself, or should I take it to the mechanic? any help would be appreciated.
Asked by Nitro_Fan2001 - Sun Jul 13 17:56:13 2008 - - 2 Answers - 0 Comments
A. How do you know you need the expansion valve? It is something you can do yourself, however you will need the refridgerant removed from the system before doing so, and then you will need it evacuated and recharged when done. Simply follow the lines under the hood to the firewall. The expansion valve is bolted there between the lines and the evaporator (which commonly fails on these).
Answered by Moose - Sun Jul 13 20:08:08 2008
Q. I have a 2004 Jeep Grand Cherokee Laredo with a straight 6 cyl. motor. I need to replace the expansion valve on the A/C system. Is this something I can do myself, or should I take it to the mechanic? any help would be appreciated.
Asked by Nitro_Fan2001 - Sun Jul 13 17:56:13 2008 - - 2 Answers - 0 Comments
A. How do you know you need the expansion valve? It is something you can do yourself, however you will need the refridgerant removed from the system before doing so, and then you will need it evacuated and recharged when done. Simply follow the lines under the hood to the firewall. The expansion valve is bolted there between the lines and the evaporator (which commonly fails on these).
Answered by Moose - Sun Jul 13 20:08:08 2008
how can i determined if the expansion valve opening is too large or too small?
Q. I have this expansion valve that is manually operated type and we are using it in ice block making. I am not so sure of the size of opening to achieve the full capacity of the evaporator.
Asked by jong - Wed Jul 7 23:04:50 2010 - - 1 Answers - 0 Comments
A. The size of the expansion valve is determined by the engineer that designed the system. You should look for an equipment tab on the machine and try contacting their technical support department. They should be able to advise you of the proper size of the expansion valve. The expansion valve itself will have a logo most likely allowing you know the manufacturer of the valve. Contact them, and they will be able to tell you the approximate number of turns to open the valve.
Answered by BIG Al - Wed Jul 7 23:17:10 2010
Q. I have this expansion valve that is manually operated type and we are using it in ice block making. I am not so sure of the size of opening to achieve the full capacity of the evaporator.
Asked by jong - Wed Jul 7 23:04:50 2010 - - 1 Answers - 0 Comments
A. The size of the expansion valve is determined by the engineer that designed the system. You should look for an equipment tab on the machine and try contacting their technical support department. They should be able to advise you of the proper size of the expansion valve. The expansion valve itself will have a logo most likely allowing you know the manufacturer of the valve. Contact them, and they will be able to tell you the approximate number of turns to open the valve.
Answered by BIG Al - Wed Jul 7 23:17:10 2010
How do I replace a Thermal Expansion Valve on a home Air Conditioning unit.?
Q. I'm trying to replace the Thermal Expansion Valve on my Home A/C unit. I'd like some help in knowing the steps it takes to replace this valve. Any help would be greatly appreciated. - Thank You - Jason Ok I do have all those tools. I just need to know how to suck all the refrigerant into the compressor. And I do not have Silfos, I have Silver Bearing Solder. I need to know do I shut off the liquid line to allow suction to pull refrigerant into compessor and then shut off suction line and turn off power to unit ? I am a certified HVAC technician. It's just been a couple years since I had a job in the industry and I'm forgeting some stuff... When I shut off the Liquid line I see the line freeze and I hear the compressor hissing. Is… [cont.]
Asked by jsin78 - Fri Aug 4 18:32:59 2006 - - 5 Answers - 0 Comments
A. First you will have to pump all of the refrigerant into the compressor or evacuate the system. You will need the following tools: Vaccuum Pump Refrigerant Gauges and Hoses flaring tool or tubing cutter and torch and solder *** Take your allen wrench and shut the valve on the liquid line. Watch your gauges and when it is done shut off the suction side and kill the power. Go to Sporlan to see how to replace the valve. Good luck.
Answered by bydand2000 - Fri Aug 4 18:40:00 2006
Q. I'm trying to replace the Thermal Expansion Valve on my Home A/C unit. I'd like some help in knowing the steps it takes to replace this valve. Any help would be greatly appreciated. - Thank You - Jason Ok I do have all those tools. I just need to know how to suck all the refrigerant into the compressor. And I do not have Silfos, I have Silver Bearing Solder. I need to know do I shut off the liquid line to allow suction to pull refrigerant into compessor and then shut off suction line and turn off power to unit ? I am a certified HVAC technician. It's just been a couple years since I had a job in the industry and I'm forgeting some stuff... When I shut off the Liquid line I see the line freeze and I hear the compressor hissing. Is… [cont.]
Asked by jsin78 - Fri Aug 4 18:32:59 2006 - - 5 Answers - 0 Comments
A. First you will have to pump all of the refrigerant into the compressor or evacuate the system. You will need the following tools: Vaccuum Pump Refrigerant Gauges and Hoses flaring tool or tubing cutter and torch and solder *** Take your allen wrench and shut the valve on the liquid line. Watch your gauges and when it is done shut off the suction side and kill the power. Go to Sporlan to see how to replace the valve. Good luck.
Answered by bydand2000 - Fri Aug 4 18:40:00 2006
How to replace A/C expansion valve on 2003 Chrysler Town & Country?
Q. The A/C in our Chrysler Town & Country has suddenly stopped blowing cold. The compressor is working as the pressure looks good, but no cold air from the front or rear units. My guess is that the expansion valve has blocked and needs to be replaced along with the drier. Any directions on how to get to the expansion valve would be appreciated.
Asked by superchargedtruck - Sun Jun 22 09:08:10 2008 - - 2 Answers - 0 Comments
A. Most Chrysler expansion valves are located at the firewall connection where the two lines attach. Evacuate the refrigerant, then remove the line connection at the firewall (pass side) remove two torx head bolts that secure the expansion valve to the evaporator.Try to be as quick as possible replacing parts as any moisture (humidity) will enter the system. After sealing the system, you MUST draw out all the air w/ a vacuum pump to remove any moisture and of course air, this allows the moisture to boil off and prevents air from mixing with the new refrigerant. Modern recovery machines measure the lube oil that is removed with the refrigerant, so replace only what has been removed, too much oil can cause issues.
Answered by Perry F - Sun Jun 22 12:13:58 2008
Q. The A/C in our Chrysler Town & Country has suddenly stopped blowing cold. The compressor is working as the pressure looks good, but no cold air from the front or rear units. My guess is that the expansion valve has blocked and needs to be replaced along with the drier. Any directions on how to get to the expansion valve would be appreciated.
Asked by superchargedtruck - Sun Jun 22 09:08:10 2008 - - 2 Answers - 0 Comments
A. Most Chrysler expansion valves are located at the firewall connection where the two lines attach. Evacuate the refrigerant, then remove the line connection at the firewall (pass side) remove two torx head bolts that secure the expansion valve to the evaporator.Try to be as quick as possible replacing parts as any moisture (humidity) will enter the system. After sealing the system, you MUST draw out all the air w/ a vacuum pump to remove any moisture and of course air, this allows the moisture to boil off and prevents air from mixing with the new refrigerant. Modern recovery machines measure the lube oil that is removed with the refrigerant, so replace only what has been removed, too much oil can cause issues.
Answered by Perry F - Sun Jun 22 12:13:58 2008
Where is the expansion valve on a '92 Honda Accord LX & how do you replace it?
Q. Where is the expansion valve on a '92 Honda Accord LX & how do you replace it? Im trying to fix my old car for my daughter to drive. Any feedback appreciated. Thanks!
Asked by CKW - Fri Jul 4 12:11:32 2008 - - 2 Answers - 0 Comments
A. Shouldn't have an expansion valve. There should be an orifice tube in the refrigeration line before it enters evaporator usually near firewall.
Answered by Ken E - Fri Jul 4 12:39:36 2008
Q. Where is the expansion valve on a '92 Honda Accord LX & how do you replace it? Im trying to fix my old car for my daughter to drive. Any feedback appreciated. Thanks!
Asked by CKW - Fri Jul 4 12:11:32 2008 - - 2 Answers - 0 Comments
A. Shouldn't have an expansion valve. There should be an orifice tube in the refrigeration line before it enters evaporator usually near firewall.
Answered by Ken E - Fri Jul 4 12:39:36 2008
What is involved in replacing an expansion valve on my 1998 Toyota 4Runner?
Q. I am pretty mechanically inclined so I want to do this myself as I can only afford the part and not the labor. I understand it is evacuating the A/C system, replacing the valve, and then charging again. I do not know where the valve is, specifically and if it requires certain industry tools. I have replaced CV joints, done valve jobs, brakes, etc...(A little background, so you can determine if I can do this.) Thanks!
Asked by Mountain Man - Sun Aug 2 16:20:36 2009 - - 1 Answers - 0 Comments
A. the expansion valve is bolted to and mounted on the evaporator housing. you have to remove the glove box completely. the evap is held in by about 4-5 bolts. look for them carefully. disconnect everything that is in front of it. there should be a cable that runs in front of the evap. make sure you re-install that exactly the same way you took it off. after you remove all the bolts holding on to the evap, you just need to use a little force and pull the whole thing out. the expansion valve is a rectangular block of aluminium. make sure you replace ALL O-ring seals and lubbed them with clean A/C oil (PAG oil). hope this helps
Answered by reis_pedro82 - Wed Aug 5 17:13:31 2009
Q. I am pretty mechanically inclined so I want to do this myself as I can only afford the part and not the labor. I understand it is evacuating the A/C system, replacing the valve, and then charging again. I do not know where the valve is, specifically and if it requires certain industry tools. I have replaced CV joints, done valve jobs, brakes, etc...(A little background, so you can determine if I can do this.) Thanks!
Asked by Mountain Man - Sun Aug 2 16:20:36 2009 - - 1 Answers - 0 Comments
A. the expansion valve is bolted to and mounted on the evaporator housing. you have to remove the glove box completely. the evap is held in by about 4-5 bolts. look for them carefully. disconnect everything that is in front of it. there should be a cable that runs in front of the evap. make sure you re-install that exactly the same way you took it off. after you remove all the bolts holding on to the evap, you just need to use a little force and pull the whole thing out. the expansion valve is a rectangular block of aluminium. make sure you replace ALL O-ring seals and lubbed them with clean A/C oil (PAG oil). hope this helps
Answered by reis_pedro82 - Wed Aug 5 17:13:31 2009
Where is the location of the Expansion valve for the ac in a 2001 Mitsubishi Eclipse?
Q. And also is this difficult to change I took it to a shop and they wanted to charge me $350 to do this work is that a rip off or is it that much work.
Asked by crazy - Tue Jun 23 20:02:26 2009 - - 2 Answers - 0 Comments
Q. And also is this difficult to change I took it to a shop and they wanted to charge me $350 to do this work is that a rip off or is it that much work.
Asked by crazy - Tue Jun 23 20:02:26 2009 - - 2 Answers - 0 Comments
What are some symptoms of a bad expansion valve?
Q. My a/c compressor was making noise when i accelerated so i replaced it...things were great for about a week and then it would blow hot then cold then hot again...within two days time it was only blowing hot...took it back to the mechanic and he replaced the compressor again...still doing the same thing...before i replaced the compressor the first time the a/c was working great it just made a little noise.. What could it be? Its a 2000 Altima
Asked by newyorktocountry - Thu Oct 5 00:11:10 2006 - - 2 Answers - 0 Comments
A. The only way to really check an expansion valve is by reading the high and low side pressures. Normally if an expansion valve is bad, it will actually pull the low side into a vacuum. Common practice when replacing a compressor is to also change the drier and the expansion device. Luckily for you, the removal of the evaporator case, which houses the expansion valve, is not that bad. It is feasable that if the compressor was bad, that ir could have sent debris through the system causing restrictions in certain components. Flush ALL the lines, evaporator and condenser, then install the new parts listed above. Also ensure that the proper amount of oil is reinstalled in the system as the fushing will remove it. Good luck
Answered by mtbman1016 - Thu Oct 5 00:24:35 2006
Q. My a/c compressor was making noise when i accelerated so i replaced it...things were great for about a week and then it would blow hot then cold then hot again...within two days time it was only blowing hot...took it back to the mechanic and he replaced the compressor again...still doing the same thing...before i replaced the compressor the first time the a/c was working great it just made a little noise.. What could it be? Its a 2000 Altima
Asked by newyorktocountry - Thu Oct 5 00:11:10 2006 - - 2 Answers - 0 Comments
A. The only way to really check an expansion valve is by reading the high and low side pressures. Normally if an expansion valve is bad, it will actually pull the low side into a vacuum. Common practice when replacing a compressor is to also change the drier and the expansion device. Luckily for you, the removal of the evaporator case, which houses the expansion valve, is not that bad. It is feasable that if the compressor was bad, that ir could have sent debris through the system causing restrictions in certain components. Flush ALL the lines, evaporator and condenser, then install the new parts listed above. Also ensure that the proper amount of oil is reinstalled in the system as the fushing will remove it. Good luck
Answered by mtbman1016 - Thu Oct 5 00:24:35 2006
Does a vehicle's A/C expansion valve make a normal "hissing" noise?
Q. I have an 03' IS300, still under warranty and trying to work out any issues before warranty expires. NOT when car was new, but starting about 6 months ago, I started hearing a faint, high pitch "hissing" noise from inside the cabin when the A/C is on. You can only hear it when the fan is on "low" AND A/C is ON. Aside from the noise, A/C works fine. Recently it seems to be slightly louder and I can hear it at fan setting 2 of 4. After a bit of research, I have read that some have interpreted this as a normal expansion valve noise and others say slightly low refrigerant or leak. I can't say I have noticed this noise on other cars but this car is pretty quiet and allows you to notice stuff like that. When it gets too annoying, I… [cont.]
Asked by rondoggnuts - Wed Aug 22 09:43:15 2007 - - 1 Answers - 0 Comments
A. I had a similar problem with a dodge dakota. It was a harmonic sound that I was hearing. Turning the fan to a higher speed changed the pitch of the harmonic so that I no longer noticed the sound. A leaf had got stuck in the blower wheel and was causing the harmonic. How the leaf got there is still a mystery. Good luck
Answered by bill t - Wed Aug 22 10:05:51 2007
Q. I have an 03' IS300, still under warranty and trying to work out any issues before warranty expires. NOT when car was new, but starting about 6 months ago, I started hearing a faint, high pitch "hissing" noise from inside the cabin when the A/C is on. You can only hear it when the fan is on "low" AND A/C is ON. Aside from the noise, A/C works fine. Recently it seems to be slightly louder and I can hear it at fan setting 2 of 4. After a bit of research, I have read that some have interpreted this as a normal expansion valve noise and others say slightly low refrigerant or leak. I can't say I have noticed this noise on other cars but this car is pretty quiet and allows you to notice stuff like that. When it gets too annoying, I… [cont.]
Asked by rondoggnuts - Wed Aug 22 09:43:15 2007 - - 1 Answers - 0 Comments
A. I had a similar problem with a dodge dakota. It was a harmonic sound that I was hearing. Turning the fan to a higher speed changed the pitch of the harmonic so that I no longer noticed the sound. A leaf had got stuck in the blower wheel and was causing the harmonic. How the leaf got there is still a mystery. Good luck
Answered by bill t - Wed Aug 22 10:05:51 2007
what is the different between the direct expansion valve and the indirect expansion vavle?
Q. what is the different between the direct expansion valve and the indirect expansion vavle?
Asked by busils_1107 - Sat Sep 8 20:06:55 2007 - - 1 Answers - 0 Comments
A. the indirect or (passive) has no moving or mechanical parts and if your talking air conditioning this (valve) is more of a filter the direct or (mechanical) has actual moving parts which are actuated by internal pressures
Answered by TRACIE M - Sat Sep 8 20:23:58 2007
Q. what is the different between the direct expansion valve and the indirect expansion vavle?
Asked by busils_1107 - Sat Sep 8 20:06:55 2007 - - 1 Answers - 0 Comments
A. the indirect or (passive) has no moving or mechanical parts and if your talking air conditioning this (valve) is more of a filter the direct or (mechanical) has actual moving parts which are actuated by internal pressures
Answered by TRACIE M - Sat Sep 8 20:23:58 2007
Do you need to remove the evaporator in order to change the expansion valve on 2002 CRV?
Q. Do you need to remove the evaporator in order to change the expansion valve on 2002 CRV?
Asked by Richard B - Sat Jul 12 04:28:39 2008 - - 2 Answers - 0 Comments
A. if you have never changed the expansion valve or evap before I recommend taking it to a professional mechanic as most cars have to have dash pulled open to get at air box and with the air bags in the cars it dangerous for the home mechanic to try also car will be down for awhile
Answered by J L - Sat Jul 12 06:02:36 2008
Q. Do you need to remove the evaporator in order to change the expansion valve on 2002 CRV?
Asked by Richard B - Sat Jul 12 04:28:39 2008 - - 2 Answers - 0 Comments
A. if you have never changed the expansion valve or evap before I recommend taking it to a professional mechanic as most cars have to have dash pulled open to get at air box and with the air bags in the cars it dangerous for the home mechanic to try also car will be down for awhile
Answered by J L - Sat Jul 12 06:02:36 2008
I have a 2003 Dodge Status the A/C has an expansion valve is it normal for the psi to bounce from 150 to 200?
Q. The dash switch was bad and it hadn't been used for awhile. now i fixed that and when i put the gages on the low side keeps going from 35psi to 20psi and the high side gets up to 200psi then drops down to 150psi. I was wondering if the expansion valve was sticking?
Asked by Doc - Thu May 21 19:19:26 2009 - - 2 Answers - 0 Comments
A. You do not say anything about what is the temperature at the vents. When the pressure drops on the high side if the compressor is disengaged or not or what pressures are on the high side and low at the same time, 35 and 200?? 20 and 150??? 35 and 150??? 20 and 200?? so... so little information and you don't even say if the a/c is not colling right, so I pulled out my cristal ball and guess what,,, couldn't see anything
Answered by class4 - Fri May 22 19:59:48 2009
Q. The dash switch was bad and it hadn't been used for awhile. now i fixed that and when i put the gages on the low side keeps going from 35psi to 20psi and the high side gets up to 200psi then drops down to 150psi. I was wondering if the expansion valve was sticking?
Asked by Doc - Thu May 21 19:19:26 2009 - - 2 Answers - 0 Comments
A. You do not say anything about what is the temperature at the vents. When the pressure drops on the high side if the compressor is disengaged or not or what pressures are on the high side and low at the same time, 35 and 200?? 20 and 150??? 35 and 150??? 20 and 200?? so... so little information and you don't even say if the a/c is not colling right, so I pulled out my cristal ball and guess what,,, couldn't see anything
Answered by class4 - Fri May 22 19:59:48 2009
How big will the temperature of a gas change when going through a valve using the Joule Thomson expansion?
Q. I'm trying to figure out how big of a temperature change will occur when gas is expanded into a bigger valve. I'm trying to use the joule thomson expansion to figure this out. I want to know how big the difference will be so that I can see if I can raise the gas temp. higher before hand so that when it comes out at the end I have my desired temperature. any help would be great. Thank You
Asked by kittyh7 - Tue Jul 18 11:14:00 2006 - - 3 Answers - 1 Comments
A. The term "throttling valve" makes things sound very technical doesn't it? The difference between a "throttling valve" and any other valve is minimal. One might suggest a throttling valve has a better ability to vary it's restriction when compared to a fast opening valve such as a flat faced globe valve, a ball valve or a gate valve, but from a thermodynamic perspective, the first law can be applied to all these valves in exactly the same way. So from a thermodynamic perspective there is no significant difference. If you draw a control volume around the valve which is flowing at steady state, you can make the following observations: 1) There is no stored mass or energy inside the control volume (ie: dU = 0) 2) There is no work done by or… [cont.]
Answered by mohnish - Tue Jul 18 11:20:22 2006
Q. I'm trying to figure out how big of a temperature change will occur when gas is expanded into a bigger valve. I'm trying to use the joule thomson expansion to figure this out. I want to know how big the difference will be so that I can see if I can raise the gas temp. higher before hand so that when it comes out at the end I have my desired temperature. any help would be great. Thank You
Asked by kittyh7 - Tue Jul 18 11:14:00 2006 - - 3 Answers - 1 Comments
A. The term "throttling valve" makes things sound very technical doesn't it? The difference between a "throttling valve" and any other valve is minimal. One might suggest a throttling valve has a better ability to vary it's restriction when compared to a fast opening valve such as a flat faced globe valve, a ball valve or a gate valve, but from a thermodynamic perspective, the first law can be applied to all these valves in exactly the same way. So from a thermodynamic perspective there is no significant difference. If you draw a control volume around the valve which is flowing at steady state, you can make the following observations: 1) There is no stored mass or energy inside the control volume (ie: dU = 0) 2) There is no work done by or… [cont.]
Answered by mohnish - Tue Jul 18 11:20:22 2006
Where is the dryer and expansion valve on a Mitsubishi 3000gt?
Q. The car is a 94sl coupe. Non turbo
Asked by Mekanic - Wed Jul 19 19:39:22 2006 - - 1 Answers - 0 Comments
A. Towards the firewall next the evaporator, follow the lines. The accumulator is usually the drier as well. There might be an orifice instead of the expansion valve. i would get a manual and think twice about servicing the a/c system yourself. This can be very dangerous it you don't know what you're doing.
Answered by Walter G - Wed Jul 19 19:59:21 2006
Q. The car is a 94sl coupe. Non turbo
Asked by Mekanic - Wed Jul 19 19:39:22 2006 - - 1 Answers - 0 Comments
A. Towards the firewall next the evaporator, follow the lines. The accumulator is usually the drier as well. There might be an orifice instead of the expansion valve. i would get a manual and think twice about servicing the a/c system yourself. This can be very dangerous it you don't know what you're doing.
Answered by Walter G - Wed Jul 19 19:59:21 2006
Split Air Conditioner, location of expansion valve?
Q. I'm curious, where are the location of expansion valve in Air Conditioning. Photos will be great help!! Thanks in advance.
Asked by amrobyono - Thu Jan 7 07:34:50 2010 - - 3 Answers - 0 Comments
A. Expansion device is indoor with the evaporator. Expansion valve is few inches away from the evaporator coils. Here air conditioner evaporator info Here photo: This meter device page has photos and video:
Answered by Newton - Thu Jan 7 18:26:44 2010
Q. I'm curious, where are the location of expansion valve in Air Conditioning. Photos will be great help!! Thanks in advance.
Asked by amrobyono - Thu Jan 7 07:34:50 2010 - - 3 Answers - 0 Comments
A. Expansion device is indoor with the evaporator. Expansion valve is few inches away from the evaporator coils. Here air conditioner evaporator info Here photo: This meter device page has photos and video:
Answered by Newton - Thu Jan 7 18:26:44 2010
how do i change a a/c expansion valve in a 1997 gmc pick-up?
Q. i know you need the right tools for this job i can get them form the guys i work with im not sure where the expansion valve is can someone help with this
Asked by KEVIN C - Mon Jul 31 18:16:18 2006 - - 1 Answers - 0 Comments
A. The expansion valve is located on the passenger side of the firewall. Step 1, drain the system. Step 2, replace the expansion valve using standard wrenches. Step 3, vaccum system. Step4, recharge and test. Good luck.
Answered by jeff s - Mon Jul 31 18:57:16 2006
Q. i know you need the right tools for this job i can get them form the guys i work with im not sure where the expansion valve is can someone help with this
Asked by KEVIN C - Mon Jul 31 18:16:18 2006 - - 1 Answers - 0 Comments
A. The expansion valve is located on the passenger side of the firewall. Step 1, drain the system. Step 2, replace the expansion valve using standard wrenches. Step 3, vaccum system. Step4, recharge and test. Good luck.
Answered by jeff s - Mon Jul 31 18:57:16 2006
Where is the AC Expansion Valve located on a 91 Toyota Camry?
Q. Where is the AC Expansion Valve located on a 91 Toyota Camry?
Asked by what a way to start a day - Mon Jul 16 08:45:30 2007 - - 1 Answers - 0 Comments
A. it's inside the evaporator case with the evaporator core. the case is behind the glove compartment.
Answered by Bruce L - Mon Jul 16 08:56:22 2007
Q. Where is the AC Expansion Valve located on a 91 Toyota Camry?
Asked by what a way to start a day - Mon Jul 16 08:45:30 2007 - - 1 Answers - 0 Comments
A. it's inside the evaporator case with the evaporator core. the case is behind the glove compartment.
Answered by Bruce L - Mon Jul 16 08:56:22 2007
Where is the location of the AC expansion valve for a 2001 Chevy S10 pickup?
Q. Where is the location of the AC expansion valve for a 2001 Chevy S10 pickup?
Asked by reciever44 - Sun Jul 18 17:04:57 2010 - - 1 Answers - 0 Comments
A. doesn't have one. the 01 S10 has an orifice tube located in the inlet side of the evaporator
Answered by snakeskinnerkyle - Mon Jul 19 21:13:29 2010
Q. Where is the location of the AC expansion valve for a 2001 Chevy S10 pickup?
Asked by reciever44 - Sun Jul 18 17:04:57 2010 - - 1 Answers - 0 Comments
A. doesn't have one. the 01 S10 has an orifice tube located in the inlet side of the evaporator
Answered by snakeskinnerkyle - Mon Jul 19 21:13:29 2010
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