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.
SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSCHEVROLET1987CHEVETTE L4-98 1.6LREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTEMISSION CONTROL SYSTEMSAIR INJECTIONPULSAIR VALVETESTING AND INSPECTION
1987 Chevrolet Chevette L4-98 1.6L
Pulsair Valve: Testing and Inspection
1987 Chevrolet Chevette L4-98 1.6LSECTION Testing and Inspection
PULSAIR VALVE
1. Inspect pulsair valve and hoses for leaks and cracks. Replace as necessary.
2. Disconnect pulsair hose from valve fitting. On V6 engines, both Pulsair valves must be tested individually.
3. Disconnect pulsair solenoid from valve, if equipped.
4. Connect a suitable hand held vacuum pump to valve and apply a minimum of 15 inches of vacuum to valve. Time vacuum loss from 15 inches to 5 inches of mercury. If vacuum drops in less than two seconds, replace pulsair valve.
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra 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.