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.
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HOMESERVICE MANUALSFORD1987CUTAWAY 7.5 LREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISCEC DIAGNOSING & TESTINGDIAGNOSIS & TESTINGEQUIPMENT HOOK-UPANALOG VOM
1987 Ford Cutaway 7.5 L
Analog Vom
1987 Ford Cutaway 7.5 LSECTION Analog Vom
- Turn ignition key off. Connect jumper wire from Self-Test Input (STI) pigtail to pin No. 2 (Signal Return) on SELF-TEST connector. Set VOM at 0-15V DC range and connect positive lead of VOM to positive battery terminal.
- Connect negative VOM lead to pin No. 4 self-test output (STO) on SELF-TEST connector. See Fig 1. Connect timing light, then go to KEY ON/ENGINE OFF (KOEO) SELF-TEST .
NOTE:
Diagnostic tester hook-up instructions apply to STAR tester only. If other then STAR tester is being used, follow diagnostic tester manufacturer instructions.
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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.