Parts for your 2022 Ford Ranger-Radiator cap

2022 Ford Ranger radiator cap — is there one?

Short answer: there’s no cap on the radiator itself on a 2022 Ford Ranger. Ford moved to a sealed radiator with a remote, pressurised coolant reservoir (often called a degas bottle). The pressure cap lives on that reservoir, not on the radiator neck. This layout is documented in Ford technical literature, including the Ford Workshop Manual for the T6 Ranger platform (for example, Section 303-03 Cooling System for the 2.3L EcoBoost and diesel variants) and the 2022 Owner’s Manual cooling system section, both of which describe checking and removing only the reservoir’s pressure cap and never mention a radiator-mounted cap.

Why did the traditional radiator cap disappear? Modern Rangers use a closed, de‑aerating cooling system designed to purge air at a high point (the reservoir) rather than at the radiator. The pressure cap’s job hasn’t gone away, it’s just been relocated for better performance and safety.

• Packaging and safety: Keeping the pressurised cap on the reservoir moves hot, pressurised coolant away from the fan and radiator core, reducing scald risk under the bonnet.
• De‑aeration: The remote bottle is the system’s high point, improving air separation and reducing hot spots inside the engine and heater core.
• Consistent filling: Technicians fill and bleed from a single, elevated point per the Workshop Manual procedure, helping avoid trapped air.
• Reliability: A sealed radiator with fewer joints and a single pressure point can reduce leak paths over the ute’s life.

What owners should know: while there’s no “radiator cap”, the pressurised reservoir cap does all the pressure control work. Only remove it when the engine is completely cool. If there’s unexplained coolant loss, hard hoses after cooldown, or the system vents into the overflow, have the cap pressure-tested and replaced if it doesn’t hold the specified pressure for your VIN. Ford service information lists the cap as a calibrated pressure device, using the correct Ford/Motorcraft cap for the specific Ranger engine is important.

These details match Ford’s service and owner documentation for the 2019–2022 T6 Ranger and the early “Next‑Gen” 2022 models: the radiator stays sealed, the cap you deal with is on the coolant reservoir.

• FAQ

Where is the coolant cap on a 2022 Ford Ranger?
It’s on the pressurised coolant reservoir (degas bottle) in the engine bay, not on the radiator. Lift the bonnet and look for the translucent plastic tank with warning labels, that’s the one to open only when the engine is cold.

What cap should be used on a 2022 Ranger?
Use the genuine Ford/Motorcraft pressurised reservoir cap specified for your VIN and engine. It’s a calibrated pressure cap, the exact rating varies by application, so matching the part via Ford parts information or your build data is the go.

Does the cap need regular replacement?
It isn’t a time‑based service item in Ford schedules. Inspect the seal at each service, and replace the cap if there’s coolant staining, damaged rubber, difficulty holding pressure, or recurring coolant loss. Always remove the cap slowly and only when the system is cool.