Challenges:
* Age: Parts for vehicles that old are often hard to come by. Original equipment manufacturers (OEMs) may not stock them anymore.
* Availability: Even if you find a used ECM, there's no guarantee it'll be in good working condition.
Where to look:
1. Junkyards and Salvage Yards:
* Start with local junkyards specializing in older vehicles.
* Online salvage yards (like Car-Part.com) allow you to search nationwide for parts.
2. Online Marketplaces:
* eBay: You might find an ECM here, but be careful; check the seller's feedback.
* Facebook Marketplace: Check local listings.
3. Specialty Isuzu Parts Suppliers:
* Search online for suppliers specializing in Isuzu parts, particularly for older models.
4. Rebuilt ECM Suppliers:
* Some companies specialize in rebuilding ECUs. You can send your old one in and have it refurbished.
5. Local Auto Parts Stores:
* While unlikely to have the specific ECM, they might be able to point you in the right direction or order one.
6. Independent Mechanics:
* Some mechanics have extensive connections in the parts industry. Ask for recommendations.
Important Tips:
* Get the Correct Part Number: If you can find the correct ECM part number for your specific 1986 Isuzu Trooper engine, you'll have a much better chance of success. You can check the ECM itself, your owner's manual, or look it up online using your vehicle's VIN (Vehicle Identification Number).
* Check Compatibility: Before purchasing, make sure the ECM is compatible with your vehicle's engine and year.
* Consider a Replacement: If finding an original ECM is proving difficult, you might consider a replacement from a reputable supplier, as long as it's compatible with your vehicle.
Note: If your ECM is failing, it's essential to diagnose the problem correctly. An improper replacement or installation can lead to further issues. Consult a qualified mechanic if you're unsure.