1996 1500

I have 1996 1500 V8. I'm sole owner and an old man. I do believe I'm still
burning .95 cents a gollon gas. About every 4/5 weeks I drive it to the local
Safeway, only because my wife is driving the other vehicle. It has about
25000 miles on it now because when I first got it I was doing local appliance
repair and used it alot. Anyhow - two or three days ago I went out to use it
and it would not start. There is at, the very first instace of trying to start
it seems to catch, and the it just grinds away. One of my grandbabies, who is
an expert motorcycle mechanic (thundermfg.com) tells me it is probably the
injectors because it sits for weeks without being started. How do I do self
help to clean those injectors? I'm halfway passable in reparing washers and
refrigerators.