When to use Prime switch on electric fuel pump?
A prime switch is also used for safety reasons. You can use the prime switch when your engine may seem to start to die or when the filters in the car become clogged. Some models of electric fuel pumps do not need to be primed by hand as they have a self priming feature built in.
How do you fix a bad fuel pump relay?
5. Install a jumper between the Fuel pump and Ground pins on the Diagnostic connector. This will pull in the fuel pump relay and you SHOULD get 12VDC at the fuel pump connector with the ingnition switch ON. If it passes this test, the fuel pump relay CONTACTS AND COIL are working. If it fails this test , you probably have a BAD Fuel Pump RELAY.
How to diagnose a faulty fuel pump failure?
In this video we go over the basic steps of diagnosing a faulty fuel pump. So if your vehicle isn’t starting and you suspect a fuel pump problem, here are some steps to follow to confirm your suspicions. Another ‘quick’ test is to bang on the fuel tank and then try and start the engine.
How is a fuel pump used in a car?
The fuel pump is used in any car where gravity cannot be used to pump the fuel into the system. There are two types of engines. The first is known as a carbureted engine and the other is known as a fuel injected engine. The fuel injected engine in most cases will use an electric fuel pump.
How do you relieve fuel system pressure in a protege?
Crank the Protege’s engine to begin relieving the fuel system pressure. Remove the rear seat cushion by pulling the straps protruding from beneath the seat. Remove the Phillips-head screws from the fuel pump access cover. Lift the cover away. Disconnect the visible electrical connection attached to the fuel pump access cover.
Can a fuel pump be replaced in a protege?
Some in-tank fuel pumps are difficult to replace, because the fuel tank needs to be removed. However, the Protege has a convenient fuel pump access door mounted beneath the rear seat, which makes the process fairly easy compared with some other vehicles. The procedure is applicable to all Protege model years from 1990 to 1998.
How do you replace a fuel pump assembl?
Wipe the contact area with a clean, dry rag. Insert the new fuel pump assembl, along with the new gasket. Tighten the mounting screws, reconnect the electrical connection and the supply/return hoses. Replace the fuel pump access cover. Tighten the cover’s screws. Replace the rear seat cushion. Reconnect the negative battery cable.
How to remove negative battery cable from fuel pump?
Disconnect the visible electrical connection attached to the fuel pump access cover. Wait for the engine to stall, and then turn the engine off and remove the key. Open the hood and unhook the negative battery cable (-) with your pliers. Set the cable aside. Unhook the fuel supply and return hoses attached to the fuel pump.