Name: AllOEMManuals
Address: 316 Brandywine Ave, Streetman, TX, 75859, US
Telephone: +14699867883
Price range: $$

Begin test with cold engine. Disconnect vacuum hose from distributor advance unit, connect to vacuum gauge, and start engine.
Vacuum should be present. If not, check vacuum hoses for leaks or poor connections. If still no vacuum, proceed to next step.
Check for voltage at ignition solenoid valve with ignition "ON". If no voltage, check wiring connections and thermosensor for continuity. Repair wiring or replace thermosensor.
When voltage is present, draw a vacuum (with hand pump) on advance hose. If gauge will not hold vacuum, check for vacuum leak between distributor advance and intake manifold. If gauge holds vacuum, replace ignition solenoid valve and recheck.
Warm engine to normal operating temperature. No vacuum should be present on advance hose. If vacuum is present, check thermosensor for continuity. If continuity is shown, replace thermosensor. If not, replace ignition solenoid valve.
Attach vacuum pump to distributor advance diaphragm, start engine, and pull 6 in. (150 mm) Hg vacuum. Timing should advance. If not, or if vacuum leaks down, replace vacuum advance diaphragm.

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.

Safety Warning

Civic 1300