* Mechanic experience: A professional mechanic familiar with Ford Explorers will be significantly faster than a novice.
* Engine type: Replacing a similar engine is quicker than swapping in a different model or year engine. This impacts the need for modifications to fit the engine bay.
* Accessibility: Some Explorers have more accessible engine bays than others, affecting the ease of removing and installing the engine.
* Tools and equipment: Having the right tools and a hoist makes a massive difference in speed and efficiency.
* Condition of the vehicle: Rust, seized bolts, or other mechanical issues can dramatically increase the time required.
Considering all this, a professional mechanic might complete the job in 8-16 hours, possibly longer if complications arise. A DIY enthusiast with some experience could easily take 24-48 hours or even longer, and they might run into problems requiring additional time for troubleshooting and parts sourcing.
It's crucial to remember this is a complex job. If you're not an experienced mechanic, attempting this yourself is strongly discouraged. Improper installation can lead to serious mechanical problems and safety hazards.