Parts for your 2020 Ford Transit-Fuel cap

2020 Ford Transit fuel-cap: is there one, and what to do about it

Short answer: a traditional screw-on fuel cap isn’t used on the 2020 Ford Transit. Ford fits a capless refuelling system (often branded Easy Fuel) on this model, so there’s no separate cap to remove or replace. This applies broadly across 2020 Transit diesel variants sold in Australia and New Zealand.

Why no cap? The capless neck seals automatically with a spring-loaded flap and an O-ringed inner valve. It’s designed to reduce evaporative emissions (no forgetting to tighten a cap), make fill-ups quicker, and help prevent misfuelling by only opening to the correct-sized nozzle. For workshop and DIY refuelling from a jerry can, Ford supplies a special plastic funnel in the vehicle toolkit to open the valve—use that rather than forcing the flap.

Worth noting for ANZ diesel Transits: the AdBlue/DEF tank does have a blue screw cap, but that’s separate from the diesel filler and isn’t a “fuel cap”.

Practical tips for owners and workshops:

• Keep the filler area clean. Blow out dust and grit so it can’t compromise the flap or seals.
• If a fuel odour, slow filling, or an EVAP-related check-engine light appears, inspect the filler neck assembly, seal integrity, and the fuel door tether/catch before chasing purge or leak faults. There’s no cap to tighten.
• When refuelling from cans, always use the Ford funnel to open the mechanism. After use, rinse the funnel so residue doesn’t gum up the valve next time.
• If the internal flap is damaged or won’t seal, the fix is typically replacing the filler neck assembly, there isn’t a cap upgrade.

Technical sources supporting capless fitment on 2020 Transit:

• Ford 2020 Transit Owner’s Manual – Fuel and Refuelling: Capless Refuelling (Easy Fuel) section.
• Ford Workshop Manual (Section 310-01 Fuel System) – Filler neck and misfuelling inhibitor description.
• Ford Service literature and TSBs referencing EVAP leak diagnostics on capless systems for Transit (model year 2020).

Popular questions about 2020 Ford Transit fuel-cap

Does the 2020 Ford Transit have a removable fuel cap?
No. It uses Ford’s capless refuelling system, so there’s no screw-on cap to undo or replace. The nozzle opens a spring-loaded flap and internal seal. If you’re filling from a jerry can, use the Ford-supplied funnel to open the valve properly.

Can I fit an aftermarket cap to my 2020 Transit?
Not practically. The filler is designed as a sealed capless unit. If you’re worried about dust or security, consider a locking fuel door or an OEM-style door upgrade. If sealing is the concern, inspect or replace the filler neck assembly rather than adding a cap.

Why do I get a fuel vapour or EVAP leak code when there’s no cap?
On capless systems, small leak codes can stem from the filler neck seal, the flap mechanism, or EVAP components like hoses and the purge valve. Check the filler area for damage or debris first, then follow standard EVAP diagnostic steps. There’s no cap to tighten, so clearing the fault usually involves cleaning, repairing, or replacing the affected part.