What You're Trying to Do:
* Mechanical Fuel Pump: These are driven by the engine's camshaft and directly provide fuel pressure. They're typically found on older vehicles.
* Electric Fuel Pump: These are powered by the vehicle's electrical system and are located inside the fuel tank. They're common in modern cars.
Is it Possible?
Yes, it's possible to convert from a mechanical fuel pump to an electric one. However, it's a significant modification, not just a simple swap.
Here's what you need to do:
1. Identify the Fuel Pump Type: Make sure your 1996 5.7L engine actually uses a mechanical fuel pump. If it already has an electric pump, then you're done!
2. New Electric Fuel Pump: You'll need to choose an electric fuel pump designed for your engine. The pump needs to deliver the correct pressure and flow rate for your 5.7L. You'll also need to ensure it's the correct size and shape to fit in your fuel tank.
3. Fuel Tank Installation: The electric pump needs to be mounted inside the fuel tank. This may require cutting a hole in the tank and installing a new mounting plate or housing.
4. Wiring: You'll need to run new wiring from the fuel pump to the engine control unit (ECU) or a relay. This wiring should include proper fuses and safety components.
5. Fuel Lines: You'll need to adjust the fuel lines to accommodate the electric pump. This may involve removing old lines and installing new ones, potentially requiring custom fabrication.
6. Pressure Regulator: An electric fuel pump might not be compatible with your existing fuel pressure regulator. You might need to replace the regulator as well.
7. ECU Programming: Modern ECUs often need to be programmed to work with an electric fuel pump. If your vehicle doesn't have an ECU (unlikely for a 1996 model), you'll need to install a new one, which is a complicated and costly undertaking.
Important Considerations:
* Safety: Fuel systems are inherently dangerous. Work with fuel lines and pumps requires careful planning and execution to prevent fires or explosions.
* Complexity: Converting to an electric fuel pump is a major mechanical and electrical modification. It's best left to experienced mechanics.
* Cost: The parts, labor, and potential ECU reprogramming can make this project expensive.
Alternatives:
* Replacement Mechanical Pump: It's often more practical to simply replace your existing mechanical fuel pump with a new one if it's worn out.
* Professional Mechanic: If you're unsure about doing the conversion yourself, consult a qualified mechanic for an estimate and advice.
Before you start, be sure to research your 1996 5.7L engine and fuel system to make sure the conversion is feasible and to get the right parts.
