My rusted Ford broke down and ended up blocking the intersection.
Literal
I [of-の] rusty Ford [subject-が] break-down-and, intersection [object-を] block-ended-up.
錆付いた is the past form of 錆付く ('to become rusty') used as an adjective — 'rusty, rusted.' フォード is the car brand written in katakana. 塞ぐ ('to block, to obstruct') takes を for the blocked thing. ~てしまう expresses regrettable completion — 'ended up blocking.' The narrative flow chains with the て-form 故障して.