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 209 (AUTOMATIC TRANSMISSION EXTERNAL CONTROLS)
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWD
Section 209 (Automatic Transmission External Controls)
2021 Ford Transit-350 HD Base, Van Cargo Extended, 3.5L Eng VIN 8, AWDSECTION Section 209 (Automatic Transmission External Controls)
WARNING: This page is about a different car, the 2019 Ford F-550 Super Duty, 2019 Ford F-450 Super Duty, 2019 Ford F-350 Super Duty, and 2019 Ford F-250 Super Duty. However, it is still accessible from the selected car via links, so may be relevant.
- Description And Operation
- Diagnosis And Testing
- External Controls
- Inspection and Verification
- Diagnostic Trouble Code (DTC) Chart
- Symptom Chart-- External Controls
- Symptom Chart -- NVH
- Pinpoint Tests
- Pinpoint Test A : Brake Shift Interlock (BSI) Does Not Operate Properly
- Pinpoint Test B : Transmission Control Switch (TCS) Does Not Operate Properly
- Pinpoint Test C : SELECTSHIFT™ Does Not Operate Correctly
- Pinpoint Test D : The PRNDL Display Does Not Correspond To The Selected Gear
- Pinpoint Test E : The PRNDL Indicator Is Always On Or Never On
- Pinpoint Test F : Water Enters Inside The Vehicle
- Pinpoint Test G : Excessive Selector Lever Effort
- Pinpoint Test H : The Transmission Does Not Change Ranges With The Selector Lever
- Pinpoint Test I : Vibration - A High Frequency (20-80 HZ) That Is Felt Through The Seat Or Selector Lever And Changes With Engine Speed
- Pinpoint Test J : Rattle, Buzz Or Other Noise
- Pinpoint Test K : Exterior Noise
- External Controls
- General Procedures
- Removal And Installation
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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.