Pressure, Vacuum and Temperature Specifications

1993 Chevrolet Lumina APV V6-3800 3.8LSECTION Pressure, Vacuum and Temperature Specifications



Ignition ON Engine OFF 40.5 to 47.0 psi
With Regulator Vacuum Applied 3.0 - 10.0 psi less than Ignition ON Engine OFF
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.