SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSMERCURY1982COLONY PARK V8-302 5.0L VIN F 2-BBLREPAIR AND DIAGNOSISPOWERTRAIN MANAGEMENTCOMPUTERS AND CONTROL SYSTEMSTESTING AND INSPECTIONPINPOINT TESTSTEST 4 VACUUM SWITCH CLOSED (CODE 65)
1982 Mercury Colony Park V8-302 5.0L VIN F 2-bbl

Test 4 Vacuum Switch Closed (Code 65)

1982 Mercury Colony Park V8-302 5.0L VIN F 2-bblSECTION Test 4 Vacuum Switch Closed (Code 65)

Fig.10 - Electrical Vacuum Switch Circuit:






1. Make sure that engine is at normal operating temperature and that vacuum hoses are connected to switch.

2. With ignition key off, disconnect vehicle harness from vacuum switch connector. Connect an ohmmeter across midvac switch terminals at switch connector to measure resistance from circuit 213 to 60, Fig. 10. If resistance is greater than 1000 ohms, reconnect hose and proceed to next step. If resistance is 1000 ohms or less, replace switch assembly.

3. Disconnect vehicle harness from MCU. Connect one lead of an ohmmeter to vehicle harness circuit 213 and the other lead to engine block. If resistance is greater than 1000 ohms replace MCU. If resistance is 1000 ohms or less, repair the circuit.

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.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

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.