Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Pressure Regulator Control Solenoid Valve
Disconnect vacuum hose from PRC solenoid valve. See PRC SOLENOID VALVE LOCATIONS table. Apply air pressure to PRC solenoid valve port "B". See Fig 1. Air should flow from port "C" only. Using fused jumper wires, apply battery voltage to solenoid terminals. Apply air pressure to PRC solenoid valve port "B". Air should flow through PRC solenoid valve air filter (port "A") only. If PRC solenoid valve operation is not as specified, replace PRC solenoid valve.
| Application | Location |
|---|---|
| Protege & Protege5 | Mounted On Intake Plenum |
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:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.