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The 2005 Nissan air conditioning compressor expansion valve is located on the bottom of the compressor. The expansion valve should be labeled as such.
It is located behind the motor on the firewall.
how do I replace my 2005 fiesta expansion header tank
It is in the driver side valve cover, you must change the valve cover to replace the PVC valve.
It's located on the firewall, passenger side in the engine compartment.
You replace the EGR valve.
location and replacement of pcv valve and egr valve on 2005 Ford Taurus se
There might not be one to replace? On the 2008 3.5L there is none, just a nipple on the valve cover. Double check to make sure.
Get a repair manual at NAPA and follow the instructions.
If I were you, I will ask the experts to help me to do that
Its located on the right hand side to the rear in the engine compartment.................
Looking at the engine from the front bumper the front expansion valve is located on the far left low on the fire wall. Follow the ac lines down and it leads to the expansion valve mounted on the fire wall. The best way to access it is to remove the inner fender well behind the passenger side front wheel.