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8.1 BBC oil pressure sending unit location?

Discussion in 'GM Powertrain' started by 572ysc, Aug 12, 2008.

  1. 572ysc

    572ysc New Member

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    Hey guys,
    I just have a short question. Where is the oil pressure sending unit (-switch) located on the 8.1 vortec engine? I was looking at it and i think that its right by the oil filter location but it only has one wire. The one that i saw on the internet has a three wire connector so that doesnt work. Im staying at a hotel right now so its hard for me to look at it without getting dirty but i was thinking on the back of the engine on top is where they are normally located on a chevy.
    #1
  2. Wayne S

    Wayne S New Member

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    It's on the back of the block just below the intake manifold. It's pretty hard to see, let alone get to. Mine went bad last year and my gauge shows 0 psi. I bought a new sending unit, but everytime I try to get to the old one, my arm gets stuck and I just give up. A buddy of mine owns a shop and told me to bring it in, i just ahven't gotten around to it.
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  3. 572ysc

    572ysc New Member

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    Yeah i just found it too and thanks for the reply.lm in the same situation youll need a extra tool with an extension !!!! man they realll put it down there on the intake.I got the part but ill have to see when i got time;.
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