For a professional mechanic: This job might take 1-2 hours. They have experience, the right tools, and are familiar with potential pitfalls.
For a reasonably experienced DIYer with the right tools: Expect to spend 4-6 hours, potentially longer. This includes time for proper preparation (disconnecting the battery, draining fuel lines, etc.), careful removal and installation, and verifying proper function afterwards.
For a novice DIYer: This could take an entire day, or even longer. There's a learning curve, and mistakes can add significant time. You may also need to research procedures and troubleshooting steps.
Factors influencing time:
* Access: The fuel pump is located in the fuel tank, requiring tank removal or dropping it partially. This process itself can be time-consuming.
* Rust/Corrosion: Older vehicles may have rusted bolts or other fasteners that are difficult to remove.
* Fuel Line Connections: Disconnecting and reconnecting fuel lines requires care to avoid leaks and spills.
* Electrical Connections: Correctly connecting the fuel pump's electrical harness is crucial.
* Troubleshooting: If there are unexpected problems (e.g., a faulty wiring harness), additional time will be required.
Before attempting this repair, it's strongly recommended to consult a repair manual specific to your 1997 Chevy Tahoe. This will provide detailed instructions and diagrams to help you avoid mistakes and complete the job safely and efficiently.
