1999 nissan pathfinder need to know where the expansion valve is located

hi cecil.
see if this link helps you out.
Where is fuel pump located at on 1999 Nissan pathfinder 6 Google Search

Evacuate all refrigerant and recycle. Disconnect the high pressure line from the EXP valve and disconnect valve. Clean surfaces and install new O rings. Reassemble. Pull a vacuum on the system and recharge with refrigerant and oil. This is NOT a DIY job.

That sensor is an integrated part of distributor, not serviceable, According to my automotive database.

Need to know what engine.

Behind the dash in the evaporator case.

Anon, Could not find a lot of info. on this one. Check the attached links,instruction and guides, 1st link will show picture of PVC hose follow hose down to PVC valve which will be screwed into the lower part of intake or in a push in grommet/valve cover. Good luck

"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."

The Nissan Path View topic Pathfinder V6 Spark Plug DIY guide

Pcv Valve Location 2003 Pathfinder 96 2004 R50 Pathfinders

PCV valve replacement horror story

It is under the driver's side dash. If you need to clear a fault, most parts stores will do it for free.

you have to remove the glove box and take the section just left of the blower motor out of the hvac box. the expansion valve is located on the side of the evaporator.

ther is a blockage in the lines somehwere. usual suspect is the a/c orifice tube which is like a mini inline filter. Similar to the orifice in function would be a thermal expansion valve. both have small ports(orifice tube is a mini screen) that can become clogged with metal filings from the compressor as it wears and /or the dessicant material comming loose from the dryer bottle. if there is indeed blockage, the a/c lines will need to be flushed, dryer bottle replaced(recommended), a/c compressor replaced, and the orifice tube or expansion valve( whichever is on the vehicle) to be replaced. vaccumed to 28 inches of mercury and the recharged to proper charge.

The PCV valve is located in the valve cover on the passenger side of the vehicle. The valve is closer to the firewall than it is to the front of the engine. It has a hose attached to it and threads into the valve cover.

Nissan Scope Technician- 10+ years experience is Nissan dealership