Useful tips

Where is the orifice tube?

Where is the orifice tube?

33 second clip suggested12:39How to Remove an A/C Orifice Tube – GM and FORD – YouTubeYouTubeStart of suggested clipEnd of suggested clipSo the orifice tube is located in this line which is basically the inlet to the evaporator.MoreSo the orifice tube is located in this line which is basically the inlet to the evaporator.

What happens when an orifice tube is clogged?

A clogged orifice tube is typically caused by compressor failure. When this happens, little pieces of metal and aluminum shrapnel will be found in the tube’s screen filter. If the filter’s filled with white or brownish debris, the desiccant bag in the accumulator has broken, sending desiccant throughout the system.

How do you fix a clogged orifice tube?

57 second clip suggested2:29Clogged Automotive AC Orifice Tube – YouTubeYouTubeStart of suggested clipEnd of suggested clipBut I had plenty of pressure on the high side. And not excessive and then I had to higher pressureMoreBut I had plenty of pressure on the high side. And not excessive and then I had to higher pressure on the low side I replaced this orifice tube. Everything was great we got about 150 on the high.

How do you change an orifice tube?

59 second clip suggested1:38How to properly install an Orifice Tube – YouTubeYouTubeStart of suggested clipEnd of suggested clipIf you see here on the end there’s these little plastic nubs. And the reason that they’re there isMoreIf you see here on the end there’s these little plastic nubs. And the reason that they’re there is so that when the tube is installed. You’ll be able to get your removal.

How do I know if my orifice tube is bad?

Usually a bad or failing AC expansion valve or orifice tube will produce a few symptoms that can alert the driver of a potential issue.

  1. AC system performing worse than usual and blowing warm air.
  2. Frost on AC evaporator or coming from the vents.
  3. AC compressor constantly running.

Where is the fixed orifice located?

A fixed orifice tube contains a small brass tube encased in a plastic case with a filter at each end to protect it from any debris in the system. It’s located on the high side between the condenser and the evaporator core.

Can you clean an orifice tube?

We know of technicians who often remove the liquid line and back flush through it. In theory, back flushing the liquid line will clean the orifice tube. This is said to work in most cases; though replacing the liquid line is the preferred method. Remember, a dirty orifice tube can starve a compressor of oil.

How do you find AC blockage in a car?

54 second clip suggested3:27Finding And Fixing AC System Blockages – YouTubeYouTube

Can a vehicle have an expansion valve and orifice tube?

If you’re wondering if orifice tubes have any relation to expansion valves in an air conditioning system, then you’re correct. Most modern vehicles use either an orifice tube or an expansion valve depending on your make and model.

When should I replace orifice tube?

It becomes necessary to replace the orifice tube if the fine mesh screen or the internal components of the orifice tube become plugged, restricting refrigerant and lubricant flow. Orifice tubes also designate the dividing point between the “high” and “low” sides of the system.

Will a orifice tube cause a lack of cooling?

Faulty orifice tubes can also result in too little refrigerant flow through the evaporator. If this is the case, the flow of refrigerant will not be enough to absorb the heat that is coming from the condenser. When this occurs, the A/C simply will not be performing well enough to allow the system to cool.

Are all orifice tubes the same?

Orifice tube colors correspond to the orifice diameters of different makes and models of trucks. So when you need to replace this part, not just any color will do. If you have an orange orifice tube, in other words, you are not able to replace it with any color that’s available.