Is it possible the two different jets have a differently sized opening or differently shaped valve opening that would cause a change in the way the fluid sprays out? Any chance the new hose's inside diameter is larger? Perhaps it's wider inside and is creating less pressure once it encounters the original, smaller hose. But that would seem to suggest the line wouldn't fit onto the "T" connector correctly...it might be very loose.
Aside from a partially obstructed "T" connector, where perhaps full volume of fluid isn't making its way to the driver's side nozzle, or maybe a crimped/pinched or partically closed section of hose, I don't know. If you haven't already done so, I'd check the portion of hose that's running from the plastic "T" to the driver's side nozzle in case some junk got stuck inside. Maybe stick a tiny needle into the nozzle to clear any tree sap or other oddity.
BTW, I'm basing my idea on the configuration of the 1st Gen Murano. I've yet to pop the cowl cover on this 2021 to see how things looks. I'm sure a couple of the members here have some diagrams of that system to show how things are run.
Aside from a partially obstructed "T" connector, where perhaps full volume of fluid isn't making its way to the driver's side nozzle, or maybe a crimped/pinched or partically closed section of hose, I don't know. If you haven't already done so, I'd check the portion of hose that's running from the plastic "T" to the driver's side nozzle in case some junk got stuck inside. Maybe stick a tiny needle into the nozzle to clear any tree sap or other oddity.
BTW, I'm basing my idea on the configuration of the 1st Gen Murano. I've yet to pop the cowl cover on this 2021 to see how things looks. I'm sure a couple of the members here have some diagrams of that system to show how things are run.
