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It is located inside the evaporator case.
The 2003 Frontier 3.3L has an expansions valve, its part of the evaporator.
how can I clean the Idle Air Control Valve on a 1998 Nissan Frontier
The EGR valve on a Nissan Frontier is on the drivers side of the engine. It is near the firewall, under the intake pipe.
The 2005 Nissan air conditioning compressor expansion valve is located on the bottom of the compressor. The expansion valve should be labeled as such.
The PCV valve on a 2000 Nissan Frontier 2.4 is on the top back part of the engine. It is attached to the intake manifold via a hose.
How do you change the ac expansion valve on a 2001 Honda civic
The PCV valve, on your Nissan 3.3 liter, is located on the side of the air filter housing. The valve should be labeled for easy identification.
valve cover torque 98 nissan2.4
IACV-AAC Valve removal 2003 frontier
the PCV on your 2003 Frontier S/C is on the passangers side Rocker cover(valve cover)
The expansion valve is located in front of the evaporator core. You must remove the housing to access it.