I need to replace my fuel pump on my 1998 pontiac sunfire. I've never done this before and i need a link to a manual or directions on how to do it. If any one can be of any assistance i'd greatly appreciate it thanks
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This could indicate a weak fuel pump or clogged pump strainer. I would start by replacing the fuel filter since this should be done every two years. The fuel pressure bleeds off after some time so the pump has to try to build the pressure back up on a cold start. This is the cheapest and easiest fix to try first.
1. Drain as much gas out of the tank as you can.
2. Remove fuel tank.
3. Remove fuel lines attached to tank. Mark them so you get them back on in the right spot.
4. Remove pump and sending unit from tank and replace with new. Replace in tank filter while you are at it.
This is Caused by the Fuel Pump. If you remove the Fuel Pump relay and it will try to Crank, You have a Bad Fuel Pump. I do Believe that the Fuel Pump is located inside the Fuel Tank on the Sunfire. Not an easy Repair But, Necessary
I assume that you do not have a "check engine" light? The next thing I would do is check the pressure from the fuel pump.You can have this done at your preferred garage, or by purchasing a fuel pressure gauge from any parts store. Vent the fuel tank vapors by loosening the fuel cap.Remove the electric fuel pump fuse and start the engine. Allow the engine to run until it runs out of fuel and stalls.After spinning the engine over for a period of 3 to 5 seconds, turn off the ignition switch and install the electric fuel pump fuse.Next, install a fuel pressure gauge in the fuel rail supply line, and secure the fuel tank cap.With the ignition key in the on position, verify that no leaks are present and start the engine.Visually verify the PSI reading on the gauge.The pressure for your vehicle should be 41-47 PSI (Pounds per Square Inch).Hope this helps and good luck!