Passenger sun visor falling down how to tighten up the visor?

please explain here as no idea what you mean ? the sun visor by any chance

I forced a small nail between the visor rod and the tube (or whatever) the rod goes into in the visor itself. That created enough tension or drag to hold the visor and keep it from drooping. The visor now works in all three positions.

u will have to get that from ford good luck if u have problems let me know

Already reported as being a repetitive problem with Murano vehicule owner eventhough they have it alreay replaced.
You can fight as long as you want with your dealer that this is a security issue no recall has been expressed about that so far.

I can say that some people switched the passenger side one with the driver side with little of convenience. I can't say more personnally.
The permanent fix being approx $250 unless you get it one in a scrap yard not knowing how long will be its life time! Up to you to make the decision.
Hope it will help
Dan

I have a 2003 Murano that just started having this problem a few weeks ago. As a quick fix, my husband and I switched the driver's side sun visor with the passenger's side sun visor (yes, everything is backwards now, but it's a minor inconvenience). It was very simple to do, and only took about 5 minutes. The cover pops right off to reveal two screws that hold the unit in place. Anyone could do it.
Meanwhile, we are searching local junkyards to try to find a replacement to avoid having to pay $250 (+) for a replacement visor.

If you have anything on top of the visor, remove it. If there are any screws visible near the pivot rod, tighten them. You can remove the visor and slightly bend the pivot rod, inside the visor. You can just buy a new one and replace it yourself. It's only a few screws.

There is a small tensioning screw that should be apperant near the bent metal visor swing arm. Sometimes this screw will loosen up with use. I am not sure what type of head is needed to tighten this screw on your model of car. (Phillips tip is most common.)
Tighten it up a little at a time until it is like you like it.
Presto.

Look for a screw near where the arm comes down from the ceiling. Usually if you tighten this one or two screws it will stiffen up.

Some of these are not adjustable. Try a junk yard. They should not have too much trouble finding one your color and in good shape. It would not be very expensive.

a creative solution is to use velcro tape. a piece on the visor and a matching piece on the roof liner

where the visor attaches to the roof there should be a plastic "cover" it can be removed but be careful to not break the tabs. You should be able to tighten the visor

inside the sun visor there is a spring which is moving to side when you push down the spring pushes side so it will keep down when you want to push to the normal possition spring releces and keep to that possition any way i would like to advice you to replace sun visor.