Starter or starter relay

[DJ44]

Thanks for the reply. After putting another bolt on the negative battery cable, and tightening all those connections down on the starter, I had 16 consecutive good no-problem normal starts - and again thought the problem was fixed. Wrong. Last night - with nothing changed - again the same failure. I have spent hours searching on every automotive, and relay-related site I could think of - to try and find out if the relay that fits onto the end of the wiring harness (for the starter) is identical in every way to the other numerous relays - including the cooling fan which is what has been in the starter harness for those 16 good starts. From what everyone has told me - the only difference is the appearance (the relay on the starter harness has that big plastic hood that covers the seal and keeps water out, whereas the normal relays that go in the fuse box are just the plain cube types. None of the many online sellers that I have found lists the amps - and of course they are all 12v. And the 4 or 5 pin (87A) prong also doesn’t seem to make any difference as there are only the same 4 sockets for all the relays in the car. If I can’t find anything this morning online, I will drive up the road to the dreaded Chevy dealer (the one that - according to AAA put a faulty relay in that harness which caused the fire) and ask them about the relays. But the uses for each are all listed as the same (everything…horn, fan, etc…)