2.5 Liter S10 Distributor Cap, Rotor Button, tune-up 

90k miles on my ‘88. Runs like a top. I did have a chronic problem that ended up being the ECU computer box. I kept getting the flash code that said ECU with the OBD1 arrangement. After looking all over hell’s half acre, I finally found a junk box off another 2.5. I pulled the EPROM out of the original box and used it in the replacement. That solved all the problems. That was, of course, after I’d replaced pretty much every component I could think of on the truck. I eventually picked up another computer box for a spare…both junkyard boxes. They are hard to come by and are pretty pricey.

I replaced all my 2.5L plugs, wires, distributor cap, rotor cap and coil. I cut to rivets off the old coil bracket and bolted it to the new one…then remounted. The distributor cap was a major pain to get back on…not a lot of room to get your hands or tools down in there.

Hey pal, I got a chevy s10 87 2.5 4 speeds I'm struggling with the firing order in the distribuidor. May I get any help. Thanks in advanced

Did you say 85 if so link wit me bro I think I have a 83 ss iron duke

Hey bud, like your video. Were you able to go back and fire it up to do any further diagnostics/ did that fix the problem at hand?

It's been 23 years since I've owned a Chevy. Had sworn them off. Bought an 88 s10 last week. Ran perfect, but didn't even make it all the way home. Shouldn't have bought a chevy. I couldn't believe where they put the distributor and coil. And the bracket for the coil. Mine had little bolts. I don't know if that's factory or someone did that. Dumbest bracket I've ever seen, it's like a mouse trap. Just plain stupid. The only reason a person likes Chevy's is because they like pain and difficulty. That's it.