Low Pressure Cut-Out Switch: Installation

1990 Buick Regal Custom, 3.8 L, 4T60/ME9SECTION Installation

Coat new "O" ring with refrigeration oil. Install "O" ring into switch cavity groove. Coat new switch with refrigeration oil and install into switch cavity. Install switch retainer and electrical connector. Lower vehicle. Evacuate, recharge and test system.

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.