1982 Toyota StarletFACTORY OEM SERVICE PROCEDURE

Thermostatic Vacuum Switching Valve Starlet

  1. Drain coolant from radiator and remove TVSV. Immerse threaded end of valve in container of water with thermometer.
  2. With water temperature below 106Β°F (41Β°C), check that air flows from port "J" to port "N" and from port "L" to port "M". SeeΒ Fig 1.
  3. Heat water to above 131Β°F (55Β°C). Check that air flows from port "J" to port "K" and from port "L" to port "M".
    Fig 1: Thermostatic Vacuum Switching Valve Test
    G09323378Courtesy of Β© TOYOTA, LICENSE AGREEMENT TMS1002

    Starlet and Tercel models only.Β 

Factory Service Tools

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.

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.

Rather have a pro handle this?

A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.

Comes to youSame-day available12-month warranty
Get a Free Quote

No obligation. See pricing before you book.