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 MANUALSFORD2021TRANSIT-350 HD BASE, VAN CARGO EXTENDED, 3.5L ENG VIN 8, AWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - PINPOINT TESTS (EXCEPT DIESEL & HYBRID) (HC TO Z)PINPOINT TESTS HG: POSITIVE CRANKCASE VENTILATION (PCV) SYSTEMINTRODUCTION
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD
Pinpoint Tests Hg: Positive Crankcase Ventilation (PCV) System: Introduction
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWDSECTION Introduction
This pinpoint test is intended to diagnose the following:
- positive crankcase ventilation (PCV) valve (6A666) and related vacuum lines
- crankcase pressure sensor (6758)
- PCM (12A650)
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Aviator, Continental, Corsair, EcoSport, Edge, Escape/Kuga, Expedition, Explorer, F-150, Ford GT, Mustang, Nautilus, Navigator, Ranger, Transit | A | 1 2 3 |
CKCP SIGRTN VREF |
| Bronco Sport | A | 2 3 1 |
CKCP SIGRTN VREF |
Powertrain Control Module (PCM) Connector
For PCM connector views or Reference values, Refer to Reference Values.
| Vehicle | Connector | Pin | Circuit |
|---|---|---|---|
| Aviator, Edge 2.7L, Expedition Base, Explorer 3.0L, Nautilus 2.7L, Navigator Base, Transit | 306 PIN | E73 | CKCP |
| Bronco Sport | 198 PIN | E72 | CKCP |
| Expedition High Output, Navigator High Output | 198 PIN | E18 | CKCP |
| F-150 | 306 PIN | E30 | CKCP |
| Mustang 5.2L | 306 PIN | E75 | CKCP |
| All other vehicles | 198 PIN | B72 | CKCP |
RENDER: 1.0x
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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.