Here's what you'll need to consider:
* Accessibility: The starter's location varies slightly depending on the engine, but it's generally tucked in a somewhat tight space near the engine block, often requiring the removal of some components for better access. This might include things like the intake manifold components, electrical wiring harnesses, and possibly even the engine mount.
* Tools: You'll need basic hand tools (sockets, wrenches, ratchets, extensions), possibly a breaker bar for stubborn bolts, and potentially a pry bar or small claw hammer to help break loose any corrosion-stuck parts. You might also need a torque wrench to reinstall the starter with the correct tightening torque. An impact wrench can really speed things up.
* Mechanical Knowledge: You should be comfortable working with automotive electrical systems (be cautious of disconnecting the battery), fasteners, and potentially dealing with slightly oily/dirty conditions under the hood.
* Repair Manual: A repair manual specific to your 1994 GMC Jimmy is highly recommended. This will provide detailed instructions, diagrams, torque specifications, and wiring information, making the job significantly easier and less prone to error.
In short: It's *doable* for a reasonably competent DIY mechanic, but it's not a simple job. If you're unsure about any aspect of the process, it's best to take it to a professional to avoid potential damage to your vehicle. Weigh your skills and comfort level against the potential cost savings of doing it yourself. The cost of a repair manual is a worthwhile investment.
