Where is the orifice tube located on a truck?
The orifice/filter is usually installed in the metal part of the high press line where the hex nut joins the long part of the metal portion of the hose. All of these I’ve seen were where the line runs along the inner fender well. Just look for a “bulge” in the metal part of the line where there is a hex nut.
How do you remove the orifice tube in an evaporator?
Remove the orifice tube using needle nose pliers or removal tool. Note the orientation of the orifice tube. It must go back in the same way. Lubricate the O-rings on the new orifice tube with AC oil. Insert the new orifice tube into the evaporator or LLOT or SLOT.
What causes an orifice tube to fail in an AC system?
Most orifice tubes fail due to contamination in the AC system due to sealer, oil degradation or mechanical deterioration. Replacing a plugged orifice tube without solving the root problem will result in another plugged orifice tube.
What happens if you overcharge the orifice tube?
Overcharging by as little as 2-oz can dramatically reduce the performance of your car’s AC system. MORE is NOT better! Most orifice tubes fail due to contamination in the AC system due to sealer, oil degradation or mechanical deterioration.
Where is the orifice tube located in an auto?
The orifice tube may be located: In the inlet tube to the evaporator. Built into the high pressure liquid line. Inserted into the high pressure line near the condenser. The 5 different types of Auto AC orifice and expansion valves.
Remove the orifice tube using needle nose pliers or removal tool. Note the orientation of the orifice tube. It must go back in the same way. Lubricate the O-rings on the new orifice tube with AC oil. Insert the new orifice tube into the evaporator or LLOT or SLOT.
Most orifice tubes fail due to contamination in the AC system due to sealer, oil degradation or mechanical deterioration. Replacing a plugged orifice tube without solving the root problem will result in another plugged orifice tube.
Overcharging by as little as 2-oz can dramatically reduce the performance of your car’s AC system. MORE is NOT better! Most orifice tubes fail due to contamination in the AC system due to sealer, oil degradation or mechanical deterioration.