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Failure mode - Ford Transit Gasoline V6 NA (3.7 Ti-VCT 2015-2019 / 3.5 PFDi 2020-present)
Cooling service: thermostat/housing and hoses
Reliability tier: aggregated - verify before ordering, see /disclosure/
Symptoms
- coolant smell or puddles
- temps creeping under load
- degas level swings
Compare with the other causes of the same sign on this engine: losing coolant · overheating or temperature creeping up
Root cause
Conventional cooling wear on a work van; the 3.5 PFDi era (2020+) shares the cooling architecture with the EcoBoost Transits.
Diagnosis
Fixes
thermostat/housing and hose replacement with fresh coolant ()
Prevalence
occasional