Here's a simplified outline of the process:
1. Safety First:
* Disconnect the battery's negative terminal. This prevents accidental shorts and electrical shocks.
* Work in a well-ventilated area. Fuel fumes are highly flammable.
* Wear safety glasses and gloves.
* Have a fire extinguisher readily available.
2. Preparation:
* Gather necessary tools: This will include various sockets, wrenches (metric), a fuel pump removal tool (often a specialized retainer ring pliers), screwdrivers, jack stands, jack, fuel line disconnect tools, and potentially a fuel pressure gauge. A shop manual will list all specific tools.
* Drain the fuel tank: This significantly reduces the risk of spillage and makes the job easier. You can use a fuel pump removal tool to siphon the fuel (or use a manual pump).
* Consult your service manual: This is crucial to understand specific procedures and locations of components unique to your Viper's model year.
3. Accessing the Fuel Pump:
* Access to the fuel pump varies slightly depending on the exact model and body style. Some models might require dropping the fuel tank, while others might offer access through a dedicated access panel in the trunk. Your service manual will show you the correct way for your specific Viper. Generally, you will need to remove various components under the car, possibly including the rear bumper or other trim.
* Once access is gained, you'll locate the fuel pump assembly typically within the fuel tank.
4. Fuel Pump Removal:
* Disconnect the electrical connector to the fuel pump.
* Disconnect the fuel lines: Use the proper fuel line disconnect tools to avoid damage. Be prepared for some fuel spillage.
* Remove the fuel pump retaining ring/clamp: This is often the most challenging part and requires the specialized tool mentioned above.
* Carefully lift out the fuel pump assembly.
5. Fuel Pump Installation:
* Install the new fuel pump assembly, ensuring it is seated correctly.
* Reconnect the fuel lines, using new fuel line clamps if necessary.
* Reconnect the electrical connector.
* Securely reinstall the retaining ring/clamp.
* Reassemble all removed components in the reverse order of removal.
6. Post-Installation:
* Reconnect the battery.
* Check for leaks: Carefully inspect all fuel line connections for leaks.
* Start the engine: Listen for any unusual noises from the fuel pump or engine.
* Check the fuel pressure: This is ideal to ensure the new pump is functioning correctly (requires a fuel pressure gauge).
This is a highly simplified overview. The actual process is much more involved and demands expertise and precision. Using a service manual is absolutely critical, and if you lack the experience, consider taking your Viper to a qualified mechanic. Improperly installing the fuel pump can result in serious consequences, including fuel leaks, engine damage, and even a fire.
