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 DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 13 (ENGINE CONTROLS - PINPOINT TESTS (DIESEL))PINPOINT TESTS MA: FUEL PUMP CONTROL - LOW PRESSURE PUMPTEST PROCEDURE
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD
Test Procedure
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWDSECTION Test Procedure
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2018 Ford Transit-350 HD, 2018 Ford Transit-350, 2018 Ford Transit-250, 2018 Ford Transit-150, and 2018 Ford F-550 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
- MA1 PRELIMINARY DIAGNOSIS NOTE: For F-150, F-650/F-750 and F-Series Super Duty, diagnose DTC P008A before diagnosing P0087.
Are DTCs P0087, P008A, P0230, P0231, P0232, P025A, P025C, P025D, P027A, P0627, P0628, P0629, P062A, P1671 or U0109 present?
Yes No For Transit with DTCs P0087 or P008A, GO to MA8.
For F-150, F-650/F-750 and F-Series Super Duty with DTCs P0087 or P008A, GO to MA2.
For all others, GO to MA11.For Transit with symptoms without DTCs, GO to MA8.
For all others with symptoms without DTCs, GO to MA2.
For all others, RETURN to SYMPTOM CHARTS for further direction. - MA2 CHECK THE VPWR VOLTAGE NOTE: For a no start concern, follow the Yes answer.
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.