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  1. Grandpa_truck

    Wanted: Daily driver upgrades/mods suggestions

    My truck will get me back and forth to our farm where I’ll swap out for the tractor or service truck and also run around town for errands. So it’ll be a daily driver. Question is what would you do to make it a reliable / efficient daily. I’ve already done the basics, thermostat, plugs, brakes...
  2. Grandpa_truck

    Think I’m done for now… and big thanks!

    Well…with the advice and guidance of a lot of fellas on this board, I think I got the majority of kinks worked out on the mystery mechanical side… time will tell. I had to add a touch of height to the suspension since I live in a very rural area and we’re flood prone most of the year….and I...
  3. Grandpa_truck

    Mystery sensors?? Coolant sender.

    So here we are again working mysteries without any clues. (Bob Seger) If you saw saw my last post about the A.I.R valve not looking like any of the photos listed as replacement parts, than you know what I’m up against. Vehicle is a 1988 GMC C1500 Sierra SLE 2wd 350 TBI. My temp gauge is only...
  4. Grandpa_truck

    Need help… what is this dang thing!

    Help needed! I’m at a loss, I can’t figure out what this thing is, pretty sure it’s not an EGR or PCV (I know where those are and that’s not it… or is it), maybe some kind of purge valve? Cant find it on parts list anywhere. Anyone? The hard plastic hose with arrow on the right must have been...
  5. Grandpa_truck

    Got me stumped… what is this!?!?

    Sorry posted in wrong section. Please delete
  6. Grandpa_truck

    1988 Grandpa Special

    Good evening, just signed up for the forum after Google searches kept bringing me to this forum, seems to be a wealth of knowledge here, so thanks for having me. I just picked up an 88 Sierra 350 5.7 in seemingly well cared for condition and 133k on odometer. 1 owner farmer who used this truck...
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