Where is the orifice tube on a 2006 Peterbilt?
the orifice tube is located in the line between condenser and evaporator. near the spring lock coupling. you must unbolt the cruise servo and overflow bottle, re-position them out of way and you will see the line connection..the orifice is inside line near that union.
Can a AC expansion valve leak?
One way the expansion valve could get clogged is if there was a leak in the system where it was open to the atmosphere and contamination entered the system that way. These leak stop products can often clog your expansion valve as well rendering your system inoperable.
Can expansion valve leak?
Signs of Expansion Valve Trouble Valves that are attached improperly to the suction line can cause leaks and misinterpret pressure readings. Also, when TXVs break, they tend to develop faulty bulb readings.
Where is the orifice tube on a Peterbilt?
The line between the two places has the orifice tube in it. near the lock. You need to unbolt the cruise servo and overflow bottle to see the line connection.
How do you remove a broken orifice tube?
“If the orifice tube breaks in the core, it must be extracted using tool T-83L-1990-B. Thread the end of the tool into the brass tube end of the orifice tube. Pull the orifice tube from the core. If only the brass tube comes out, thread the tool back into the orifice body and pull that out.”
Where is the expansion valve in a truck?
I put 3# in an expansion valve 379. No expansion valve, orfice tube is located @ evaporator inlet. Click to expand… Orifice tube is inside the evaporator high side tube. Accessed from the outside at the firewall. Disconnect the lower line from the evaporator and pull the tube out with needle nose and make sure you have a firm grasp.
Where is the pressure switch on Peterbilt a / C?
The system uses a pressure switch which is gray in color and located in the low side To cycle the compressor. Ashman_42 Thanks this. This is common with pete.
What happens when an AC expansion valve fails?
AC compressor constantly running. If the AC expansion valve fails or sticks open, it will cause the compressor to pump refrigerant through the vehicle’s AC system, even when it may be undesirable for it to do so. This will put an additional strain on the compressor and associated AC components, making them more susceptible to premature failure.
How does a Peterbilt a / C compressor work?
The system cycles off of pressure because there is no freeze switch. So the system is very sensitive to proper charge. The system uses a pressure switch which is gray in color and located in the low side To cycle the compressor. Click to expand…