No Power to the fuel pump - 2002 Chevrolet Malibu

1. Check the fuel pump fuse: Locate your vehicle's fuse box (usually found under the dashboard or in the engine compartment) and check the fuel pump fuse. If it is blown, replace it with a fuse of the same amperage. If the fuse is fine, proceed to the next step.

2. Check the fuel pump relay: The relay controls the power supply to the fuel pump. You can typically find the fuel pump relay in the fuse box or a separate relay box. To test the relay, you can swap it with an identical relay (such as the horn relay) and see if the fuel pump starts working. If it does, the relay is the problem and needs to be replaced.

3. Inspect the wiring: Damaged or corroded wiring can cause a loss of power to the fuel pump. Check the wiring leading to the fuel pump for any visible damage, corrosion, or loose connections. Repair or replace any damaged wires and clean corroded connections.

4. Test the fuel pump for proper function: If you have access to a multimeter or test light, you can test the fuel pump terminals for power when the ignition is turned on. You should see a voltage for a few seconds as the pump primes. If there's no power at the terminals, the problem could be a faulty ignition switch, fuel pump control module, or a wiring issue.

5. Faulty fuel pump: If all the above steps show that power is reaching the fuel pump, but it is still not working, the pump itself might be faulty and need replacement.

The fuel pump not working in your 2005 PT Cruiser and the absence of a "fuel pump fuse" on the dashboard could be caused by a few different issues.

1. Blown Fuse: If the fuel pump fuse has blown, it will need to be replaced in order to restore power to the fuel pump. The fuse box in a 2005 PT Cruiser is typically located under the hood, on the driver's side.
2. Fuel Pump Relay: The fuel pump relay controls the power to the fuel pump. If the relay has failed, the fuel pump will not receive power and the engine will not start. The relay is usually located in the power distribution center or the engine compartment fuse box.
3. Fuel Pump: If the fuel pump itself has failed, it will need to be replaced. The fuel pump is typically located in the fuel tank.
4. Wiring Issues: Wiring problems can also cause the fuel pump to stop working. If the wiring has been damaged or is corroded, it will need to be repaired or replaced in order to restore power to the fuel pump.

If you are not comfortable diagnosing and fixing the issue yourself, I would recommend taking your vehicle to a certified mechanic. They will be able to diagnose the problem and make the necessary repairs.

Check continuity of the wires between the relay and the pump.

fuel pump power can be controlled by the pressure regulator that signals the ECM to turn on the pump relay to power the pump
check further afield from the pump as the problem is else where

Maybe this will help ---

Also check the fuel shut off switch since you do not have power.

You have no voltage at 15 amp fuel pump fuse in the under hood fuse/relay center ? There is a fuel pump relay also in same under hood fuse box. The fuel pump fuse gets power from the fuel pump relay. The ( PCM ) engine computer controls that relay, gives power or ground electronically to turn the relay on giving power to the fuel pump through the fuel pump fuse. You could have a bad relay or an anti-theft system problem . What engine does you vehicle have 2.0 L or 2.2 L the 2.0 L engine gets power differently to fuel pump .

the fuel pump is supplied power via the fuel pump relay. The relay gets power for the fuel pump through the ECM B fuse. This fuse also supplies power to the vehicle control module.

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

No noise from fuel pump when you turn over the car .First thing get voltage at fuel pump relay checked, is there 12 volt to the relay.If no, then problem is again the relay.--------- To reconfirm the problem, try other test, that is remove the relay and by pass the relay terminals with a jumper wire .Then with 12 volt external battery give power to fuel pump connector and see, if the fuel pump starts, then its clear that fuel pump relay is faulty.----------- Also other problem can be fuel pump inertia switch.If the inertia switch is faulty then also fuel pump will not start.-------- The fuel pump relay on a 1995 Ford Explorer is in the power distribution
box, in the engine compartment, driver's side near the firewall.----------
The fuel pump inertia switch is in the right front passenger area
it is below the dash but above the carpet in the right hand corner.--------
Its a push button type inertia switch.
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Fuel Pump Activation
When ignition switch is turned to START position, PCM operates fuel pump relay to provide fuel for starting engine. PCM senses engine speed and shuts off fuel pump by opening ground circuit to fuel pump relay when engine stops or engine speed drops to less than 120 RPM. When ignition switch is in ON position, EEC power relay is energized (contacts closed). Power is provided to fuel pump relay and timer in PCM. Fuel pump receives power through fuel pump relay contacts.
Inertia Fuel Shutoff (IFS) Switch
All models use an electrical interrupt switch in fuel system. During a collision or vehicle rollover, electrical contacts within inertia switch open, shutting off fuel supply to electric fuel pump. Fuel supply is interrupted even when engine is running.
A reset button is located on switch assembly. If electrical circuit trips, vehicle will not restart until switch is reset. Fuel system should be inspected before resetting switch.
IFS switch is located under instrument panel, near right side of transmission hump. ----------- If the fuel pump relay, the inertia switch and fuel pump all checked ok, and fuel pump is working with direct 12 volt source to fuel pump.Then problem relates to computer.The computer (power control module, PCM) is faulty and has to be replaced.--------- This will help.Thanks.Helpmech.

check fuel pump relay on firewall passenger side if it has power and power when the key is turned on will click test power through relay to fuel pump disconnect connector at fuel tank make sure you have a good ground test for power at sending unit when key is os or in start if power the sending unit has rotten corroded wire going to fuel pump you will have to remove the fuel tank test power right at the pump if there is no power replace sending unit if power a pump use teslight one end on ground terminal and other lead on power terminal at pump if you have power replace the pump

if this is helpful plz leave a comment like and if you need more help ask once you eliminate pump good luck

Did you check the fuel inertia switch in the passenger side kick panel ?

The fuel pump is powered :
the fuse to the fuel pump relay.
The fuel pump relay to the fuel inertia switch
The fuel inertia switch to the fuel pump itself.

At the fuel inertia switch in the kick panel, power from the relay is the Dark Green w/ Yellow stripe wire and the pink w/ black stripe wire is the power. from the fuel inertia switch to the fuel pump.

If you jumper the fuel pump relay, you should hear it run. If not pull the fuel pump relay, and check the pins in the relay socket, pin 30 should be the power from the fuse.



If you have power at pin #30, jumper the relay socket as shown with the red line above, and check the dark green w/ yellow stripe wire at the fuel inertia switch for power.
Press the button on the top of the fuel inertia switch, and check for power leaving the fuel inertia switch on the pink w/ black stripe wire.

This is tests good, check for power at the fuel pump, same pink w/ black stripe wire.
Fuel inertia switch info is in the owners manual, If you did not get an owners manual with your truck ( purchased used ), you can download one from Ford :
https://www.fleet.ford.com/maintenance/owners_manuals/default.asp