1982 Mazda RX-7 GSL, Automatic TransFACTORY OEM SERVICE PROCEDURE

Switching Solenoid Valve

  1. Disconnect vacuum sensing tubes from switching solenoid valve and vacuum pipe. Blow through switching valve from vacuum sensing tube "B" in Figure. Air should pass through valve and escape from front port.
  2. Disconnect electrical connector from switching valve and connect battery power to terminals on valve. Blow through hose again; air should pass through valve and escape through filter at rear of valve. If switching valve does not respond as described, replace switching solenoid valve.
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.