crusty

The two holes with the wire mesh, they are not stock. Not sure where they go. The paint brush skirting at the bottom isn't stock either, never seen that one before.

Smelling Freon? Are you sure you are not smelling antifreeze? If you are smelling freon you have a big leak and it will be empty in minutes.

If it is just the expansion valve at the evaporator, that can be done from under the hood. If it really is the evaporator core itself, take out the seats glovebox, and center console. Unhook the electrical on both pillars, A-pillar trim. steering shaft. Couple bolts on each side of the dash beam to the pillars. Probably a few more hidden bolts. Take the whole dash out in one piece. Just like how it was built, but backwards. Trying to take the dash apart layer by layer ends up being harder, you take more apart, and way harder to put it back together correctly. The original engineering was for it to be built in one piece, just follow that.

Backordered = will be available Discontinued = now you are in trouble. Expectations that every part needed will always be in stock = unrealistic. A few years ago I had a new Ram truck that needed a new wheel. Brand new truck, there were wheels exactly what I needed on the new car lot. But it took almost a year to get that correct matching factory wheel on a vehicle that was in production.

Also look at Titan XD. The front frame section is nearly identical. Must be XD, not a regular Titan.

The dual post mirrors are extendable, all years. The single post mirrors are not.

Correct, mostly. The early V8 did have the 3.54 ratio. Once the V8 got the 7-speed they all got the 3.36. Go aback in history when the Titan was launched with this 5-speed transmission. Nissan claimed the 3.36 ratio was like others 4.10 ratio. The logic/math was the 5-speed had a much lower 1st gear. So the standing start was very close. But the Nissan 5-speed overdrive ratio was also very different as well. The normal 4-speed transmissions that were out at the time had 0.70-0.75 overdrive. While the Nissan had only .85 overdrive. If you wanted to play even more, the Titan XD diesel has a 3.92 ratio in the same axle design that can be swapped into the Van's axle. Or a 4.09 in the '20-24 Titan XD with the 9-speed (has a really tall set of overdrive ratios). Nothing wrong with running in 3rd gear. The VQ motor likes some RPM. It has an oil cooler. The basic engine design goes back to the mid 90s. Versions of this engine are used in Z-cars, an alphabet soup infinity cars, well regarded in the engine design. Trying to change the axle ratio is going to still put the engine into the same RPM band, just in a different gear, and make driving without the trailer much worse.

Not a chance of the 7-speed bolting up. The back of the block is completely different. And the programming of the transmission is completely wrong as well. The V6 is OK in a mid sized truck. Not really a good choice in a full size van that is trying to tow. It can move it, just not a great job of doing it as you have found.

Was just watching Hoovie's Garage. They are fixing a Hellcat. The entire engine build is on hold because they can't get a set of rings. Something that should be easy to get on a late model hemi. The cam was scarce and had to pay extra for one of the few that could be found. Parts are just hard to get.

Not just these vans. Every vehicle is having these issues. Trying to remember the part, but a co-worker was quoted a 14-month backorder for some common part. I think it was a chevy. Insurance is totaling fairly minor damage vehicles simply because they can't get the parts to fix them.

Just got mine. Not installed yet. See how it goes for me.

You are correct. Like every production car I have ever seen the speedometer gets input from the rotational speed of the wheel, driveshaft, etc. There is a calibration in that speedometer based on the rolling distance the tire will cover per revolution. In the olden days you could go in and get a different gear (different number of teeth) to correct for different tire sizes as well as different axle ratios. That was the driveshaft based speed. Modern stuff runs wheel speed sensors. That feeds an RPM signal into the ABS system. The ABS knows how many revolutions the tire turns per mile, and a little basic math will give speed. There is another speed sensor for the output shaft of the transmission. That feed back to the transmission so it can monitor that the gear ratios are correct and the transmission isn't slipping. Just like the old transmission speedometer days but this has no gear. It is done with software. Fun bit, if you change axle ratios and the cruise is on, you can get an engine code for something like mismatch of speeds that will keep the cruise control from working until you turn it off and start it back up again. I don't know of any real good way to correct a speedometer for oversize tires in the vans. A cheat sheet (or stand alone GPS speedometer) is the easy way to really know.

Also idling the engine will be heating the van. Hot engine under the hood, blowing hot air under the chassis warming the floor, not to mention the added heat radiating off the exhaust. You would be adding to the AC load. Idling engines are not very efficient either.

There are 2 very different styles of fan clutch. What year and what engine are you working on?

ECM is under the hood BCM is under the dash. If you heard a pop, it probably wasn't from inside the ECM under the hood. I would guess BCM behind the dash. The other thing that makes pop noises is when fuses blow. And Nissan likes to put fuses all over the place. No old days of one fuse panel. Some under the dash, some under the hood. Don't expect to find just one fuse to the module, several fuses for different operations.