* Your mechanical aptitude: Someone experienced with car repair will be significantly faster than a novice.
* Access to tools: Having the right tools readily available saves a lot of time. A specialized fuel pump installation tool can be helpful.
* Condition of the car: Rust, seized bolts, or other unforeseen complications can add hours to the job.
* Fuel tank access: On some vehicles, accessing the fuel pump requires dropping the fuel tank, which is a time-consuming process itself. The DeVille's design will determine the level of difficulty.
A reasonable estimate for someone with some experience and the proper tools, assuming relatively straightforward access, might be 4-6 hours. However, it could easily take longer, even a full day or more, if you encounter problems. For a complete beginner, it could take much longer, or it might be best to seek professional help.
Before starting:
* Safety First: Always disconnect the battery's negative terminal before working on the fuel system. Fuel is highly flammable.
* Consult a repair manual: A shop manual specific to your 1974 Cadillac DeVille will provide detailed instructions and diagrams, making the job significantly easier and safer.
In short, plan for a significant time commitment, and don't hesitate to seek professional assistance if you're uncomfortable working on your fuel system.
