A bad diode can cause the 10a fuse to blow. (it looks like a fuse that is located above and left of the AC fuse)
For a 1987 there is no automatic doors or windows for A Chevy Astro Fuse is underneath the steering colum along the Driver side feet...
It could be electical like a fuse, but I had a problem on my 2000 Astro that was caused by a rubber vaccuum line that was split. I replaced it for about 2 bucks and it corrected the problem. Hope this helps
fuse box location
The exact location of the Chevy Astro Van fuel injection pump fuse is dependent upon the year of the vehicle. The fuel injection pump fuse will be in the fuse box. The location of the fuse will be listed on the inside cover of the fuse box.
Wrong amp of fuse
The 1994 Chevrolet Astro Van ABS fuse is located in the fuse box. The ABS fuse will be in the second column, third from the top.
check tow hitch wiring for bear wires
pull mthe fuse under the hood a 60 amp fuse it worked for me.
== == Check under the hood in the fuse relay box. The fuse relay box is close to the battery.
You can find a 1995 Chevrolet Astro Van fuse box diagram in the back of the owners manual. You can also find the fuse box diagram on the inside cover of the fuse box.
Just northeast of the starter fluid container
right in the owners manual, or inside of the fuse box door.