emunder Posted November 14, 2019 Share Posted November 14, 2019 Evening fellas. Trying to get my tach working & I've done a lot of reading but none of this is getting through to me. I have the inline 6 and the dash has a stock tach there but it's not working. From what I have read I need to locate the green & yellow wire & hook that up to the coil? Can any of y'all identify which is the green/yellow wire I am looking for in one of these pics? And if so what do I need to do from there to get it hooked up? This is probably way easier than I think but it's not making sense to me. Any help would be greatly appreciated. Link to comment Share on other sites More sharing options...
Gary Lewis Posted November 15, 2019 Share Posted November 15, 2019 If your wiring is original then the wire will already be hooked up. You can see it in the diagram below coming off the right side of the coil: Link to comment Share on other sites More sharing options...
emunder Posted November 15, 2019 Author Share Posted November 15, 2019 If your wiring is original then the wire will already be hooked up. You can see it in the diagram below coming off the right side of the coil: Is this going to be the wire Gary? If everything is plugged in I wonder why it doesn't work. Link to comment Share on other sites More sharing options...
Gary Lewis Posted November 15, 2019 Share Posted November 15, 2019 Is this going to be the wire Gary? If everything is plugged in I wonder why it doesn't work. That should be it. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted November 15, 2019 Share Posted November 15, 2019 Nice to see a Wix/Dana oil filter on there! Your engine looks amazingly unmolested. Are you sure someone hasn't swapped in a tach cluster where there wasn't one before? Otherwise I might try following the "goes to EEC" diagram in the EVTM that Gary posted a page of. Sometimes connectors get a little fuzzy and they just need a little De-oxit and being replugged. The engine wouldn't run if the computer couldn't break ground on that green wire, so it must be between the computer and the tach in the cluster. Link to comment Share on other sites More sharing options...
emunder Posted November 15, 2019 Author Share Posted November 15, 2019 Nice to see a Wix/Dana oil filter on there! Your engine looks amazingly unmolested. Are you sure someone hasn't swapped in a tach cluster where there wasn't one before? Otherwise I might try following the "goes to EEC" diagram in the EVTM that Gary posted a page of. Sometimes connectors get a little fuzzy and they just need a little De-oxit and being replugged. The engine wouldn't run if the computer couldn't break ground on that green wire, so it must be between the computer and the tach in the cluster. I like them, use them on all my vehicles. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted November 15, 2019 Share Posted November 15, 2019 Nice to see a Wix/Dana oil filter on there! Your engine looks amazingly unmolested. Are you sure someone hasn't swapped in a tach cluster where there wasn't one before? Otherwise I might try following the "goes to EEC" diagram in the EVTM that Gary posted a page of. Sometimes connectors get a little fuzzy and they just need a little De-oxit and being replugged. The engine wouldn't run if the computer couldn't break ground on that green wire, so it must be between the computer and the tach in the cluster. If the EEC didn't get a tach signal the fuel pump(s?) would shut off after a couple of seconds. One of the signs of a bad EEC is if the pump runs continuously. Link to comment Share on other sites More sharing options...
emunder Posted November 15, 2019 Author Share Posted November 15, 2019 If the EEC didn't get a tach signal the fuel pump(s?) would shut off after a couple of seconds. One of the signs of a bad EEC is if the pump runs continuously. I feel like a complete dumbass...#18 fuse was blown. Replaced it and now the tach works like a charm. Link to comment Share on other sites More sharing options...
ArdWrknTrk Posted November 15, 2019 Share Posted November 15, 2019 Simple fix is always nice! Wish my truck was that easy. Link to comment Share on other sites More sharing options...
emunder Posted November 15, 2019 Author Share Posted November 15, 2019 Simple fix is always nice! Wish my truck was that easy. I hear that man. Normally things don't work out this easy lol. Link to comment Share on other sites More sharing options...
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