Sliding back door VERY STICKY?

Hey Guys,

My back sliding door is very sticky. Has anyone had this issue in the past? Do the little bearings in the runner of the door need to be greased? It seems very weather dependent, but that could be my imagination?

Sometimes it won't go back; therefore, I pull it forward and gently try to get it fully open again. Any insight? Thanks!

I've noticed the same problem recently. I suspect it all needs a good clean and regreasing.

I periodically wipe any greasy dirt out of the track and spray a silicone lubricant on all contact/rolling points, keeps things sliding nicely. Probably 2-3 times a year.

Noted. I kind of assumed that was the case. Additionally, it has been brutally dry-dusty here. I will try cleaning out the ports and adding silicone lube to the rolling pieces. Thanks!

I recently had this happen to me. It happened after taking it on a long gravel road with severe and unpredictable washboarding. Actually turns out that there are two rollers which are loosely secured to the assembly. It's highlighted in this post and GPW does a great job at explaining how to do the job in this post:

https://hiace-super-custom.forumotion.com/t3328-sliding-door-roller?highlight=door+rollers

He also gives dimensions of the new rollers. Turned out that both of mine were missing. GPW also gave the dimensions of the rollers, I thought I had to possibly order them online, but I went to my local fastener supply store and found some metric stainless spacers that measured 4mm ID, 6mm OD, and 10mm H. The dimensions of the OEM parts were the same, except the height is 9.5mm. I figured I could at least grind or file 0.5mm off the height. I took the rolling assembly off, which you need to be extremely careful of as the door can fall and possibly damage the bottom and top rollers. It might be useful to use a second person to support the door as it's fairly heavy.
I took out the middle rolling assembly, cleaned it, greased it, and installed the new rollers before installing it back on the van.
Fixed my problem and took a total of ~2 hours including my trip to the hardware store. The spacers costed me ~$5. Much quicker and cheaper than ordering OEM parts from Japan.

Hopefully this helps.