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- Sep 24, 2025
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- Weston, FL
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- 2025 Tacoma Trailhunter
Gotcha, this makes sense to me, thank your for explaining this.In these engines, the oil pressure starts to build as soon as the starter turns the flywheel, or motor/generator turns the crank. The ECU won’t allow the engine to fire up until minimum oil pressure parameters are met first. The oil pump is primed and the oil system is at minimum pressure to start before the engine is allowed to start.
Oil pressure is relatively instantaneous
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