If the low side has too much pressure and the system isn't cooling properly that would be one sign that the orifice is plugged up. Removing the orifice tube and inspecting it would be the best way. If the orifice tube is loaded with metal trash, the compressor is probably on its way out. Replace the compressor, accumulator and orifice now before the compressor fills the system with trash, this you don't want to happen.
If I change the AC compressor in a car, do I have to change the orifice?
To remove the orifice tube on a 1999 Dodge Ram 3500 you need to cut the tube out of the liquid line. Kits are available at your local auto parts store to replace the orifice tube once you have removed it.
YES that is a must.
It is located inside of a line that routes off of the condenser and splits between the front and rear A/C sections. The line with the orifice tube heads to the firewall on the passenger side of the vehicle. You'll see a crimped area on the line, where the orifice tube is located. I don't believe you can easily replace the orifice tube without cutting/repairing the line or replacing the whole line assembly. The line has several bends negating pulling the orifice tube out. Pretty inconvenient. The rear A/C uses an expansion valve.
I need to know too.. did you find out? please post
Orifice tube on f150 with 4.2
It does not have an orifice tube.
It uses an expansion valve, not an orifice tube.
The orifice tube is located between the engine and the fire wall. The windshield wiper cowling has to be removed to gain access to the orifice tube.
passanger side of radiator. inside the aluminum tube. has a nut on it to take apart for the orifice tube
How do you replace the orifice tube on a 2000 Mercury Marquis
A 1987 Dakota uses an expansion valve, not an orifice tube.A 1987 Dakota uses an expansion valve, not an orifice tube.