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  1. D

    Oil Leak Into Cab

    All of my heater controls are vacuum operated. I’d it possible that I am sucking oil through a vacuum line off the manifold?
  2. D

    Oil Leak Into Cab

    That makes sense. It’s coming right under the dash through the firewall and I have no idea how. Might have to remove the ac vents so I can get a better look at it
  3. D

    Oil Leak Into Cab

    Hello everyone, I’ve got an 1986 GMC K1500 with an oil leak going into my cab under the dash right in the center. Yes! It is oil not coolant or tranny fluid. Does anyone or has anyone ever come across this issue? I have no idea how this happened and I have never heard of this before. Thank you...

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