1986-1993 Toyota Supra OEM VSV Vacuum Valve Solenoid or Heating Radiator Valve


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1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993



Supra A70




3000 cm3 Petrol 172 kW 7mgte

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Fit In Five Steps

How to replace a Toyota Supra Vacuum Solenoid Valve?

1.Materials Needed For Repair

  • Boxed end wrench or ratchet wrench
  • Flashlight
  • Flat blade screwdriver
  • Penetrating oil (WD-40 or PB Blaster)
  • Replacement canister purge solenoid
  • Replacement vent or vacuum hoses (if the ones attached are frayed you should replace)
  • Safety equipment (safety glasses)
  • Scan tool

2.Secure Vehicle & Locate Vacuum Solenoid Valve

The canister purge solenoid is connected to a power connection that supplies the device with electricity in order to trigger the solenoid on and off. Because of this, the first thing that should be done before replacing this part is to disconnect the power supply by removing the positive and negative battery cables. Raise the hood and locate the canister purge solenoid. On most vehicles, this component is located on top of the engine, or near the rear of the fuel system. It will have an electrical harness and two vacuum lines attached. One of the vacuum lines runs to the fuel injector rail, while the other is attached to the EVAP canister located near the fuel cell. Locate this component and match it with your replacement part before removing.

3.Remove Old Vacuum Solenoid Valve

Once you’ve located the correct part, disconnect the electrical harness that is attached to the canister purge solenoid. A good tip that many experienced mechanics know is to mark the location of each vacuum line so that you don’t install them backward. This component is usually secured to a bracket near the fuel injector rail or the firewall with a 10mm sized bolt. Remove the bolt and remove the old canister purge solenoid from the vehicle.

4.Install New Vacuum Solenoid Valve

Installation of this component is in reverse of the removal. Follow these general guidelines but always refer to the specific instructions in your vehicle service manual. Place new vacuum hoses on the canister purge solenoid (if the old ones are frayed). Install the new canister purge solenoid by securing it to the bracket with the bolt. Install the vacuum lines on the correct male fittings and reinstall the electrical harness. Once the new canister purge solenoid has been secured to your vehicle correctly, check the vacuum lines one last time to verify they were not installed backward. Incorrect installation can result in serious engine damage.

5.Clear Error Codes & Test the Vehicle

Reconnect the battery cables and start the vehicle. Clear any error codes with a scan tool. Start the vehicle and let it warm up to operating temperature. Check the dashboard to verify that the Check Engine Light does not come on. If it does, you should shut the vehicle off and complete a diagnostic scan. After verifying that the Check Engine or other lights are gone, shut the vehicle off and remove the gas cap. This test will verify that the vacuum is working. If you remove the gas cap and there is a tremendous amount of vacuum pressure, re-check the lines you connected to the canister purge solenoid as they may be crossed.

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1986-1993 Toyota Supra OEM VSV Vacuum Valve Solenoid or Heating Radiator Valve
1986-1993 Toyota Supra OEM VSV Vacuum Valve Solenoid or Heating Radiator Valve