Here's a breakdown of the pros and cons:
Pros:
* Lower cost: This is the biggest advantage. Used and rebuilt compressors are significantly cheaper than new ones.
* Availability: Finding a used or rebuilt compressor might be easier and faster than getting a new one, especially for older vehicles.
Cons:
* Unknown history: With a used compressor, you don't know its operational history. It might have internal damage that isn't immediately apparent, leading to a short lifespan.
* Rebuilt quality varies greatly: The quality of a rebuilt compressor depends heavily on the rebuilder. Some rebuilders do excellent work, while others cut corners, using inferior parts or not properly testing the unit.
* Shorter lifespan: Even a well-rebuilt compressor will likely have a shorter lifespan than a brand-new one.
* Warranty issues: Warranties on used or rebuilt compressors can be limited or nonexistent, leaving you with little recourse if it fails quickly.
* Potential for additional problems: If the compressor failed in the first place, there could be underlying issues in the AC system (e.g., a clogged condenser or leaky evaporator) that a new or rebuilt compressor won't fix and could even damage.
Recommendation:
For a 1994 Explorer, carefully weighing the pros and cons is crucial. If you're on a tight budget, a *rebuilt* compressor from a reputable remanufacturer *with a good warranty* might be a reasonable option. However, make sure you thoroughly research the remanufacturer before buying. Look for reviews and check their warranty details.
A *used* compressor is generally a riskier proposition unless you can inspect it yourself and are confident in your assessment of its condition.
If the cost difference isn't excessive, a new compressor provides significantly more peace of mind and likely a much longer lifespan. You'll also avoid the potential for additional repairs if a faulty used or poorly rebuilt unit causes further damage to your AC system. Consider the long-term cost – repairing a failed compressor again soon after installing a cheap replacement might end up costing more in the end.
