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.
1986 Pontiac 6000 STEFACTORY OEM SERVICE PROCEDURE
Pump Runs Continuously
- Check all attaching hoses for leaks. Repair as required. With ignition off, remove inlet hose from pump and connect hand vacuum pump to inlet. Turn ignition on. With 10 in. Hg applied, if pump continues to run, replace controller.
- If pump shuts off when vacuum reaches 10-15 in. Hg, drop vacuum back to less than 10 in. Hg. Pump should run until vacuum reaches 10 in. Hg, then shut off after 5-10 seconds. If so, pump is okay.
Factory Service Tools
Use the Manual With the Right Hardware
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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.