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.
1987 Mitsubishi Starion ESI-RFACTORY OEM SERVICE PROCEDURE
Solenoid Valve
- Mark location and remove White-striped and Yellow-striped vacuum hoses from solenoid valve. Disconnect harness connector. Connect vacuum pump to nipple on valve where White-striped hose was connected and apply vacuum.
- When battery voltage is applied to solenoid valve terminal and other nipple on valve is left open, vacuum should leak. If other nipple is plugged, vacuum should hold.
- When no battery voltage is applied and other nipple is open, vacuum should hold. Check solenoid coil resistance. Standard resistance is 38-44 ohms at 68°F (20°C).
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:
- • 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.
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 QuoteNo obligation. See pricing before you book.