Question about 2003 Ford Focus
Triple A guy thinks it might be fuel pump or fuel pump relay
Check on your inline fuel filter. If this clogged the fuel pump cannot pump gas through it to get to motor.
Posted on Jan 01, 2013
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.
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.
Posted on Jul 17, 2011
Testimonial: "Thanks. That was the best answer yet.I didn't want to hear that the PCM might need to be replaced but the car has served it's purpose through the year"
SOURCE: Fuel Pump Relay
Obviously, you can jump the relay but it is dangerous on an extended basis. You'd have pressure in the lines when you don't want it there. Replace the relay if it is defective.
If you have other issues, you can check the pump back to the tank by going on the business end of the relay and looking for resistance at the pump to ground. If it is open, the pump or the harness is bad...GMs have harness issues...not Fords.
Posted on Jul 24, 2008
You are looking for the constant control relay module- ( CCRM ) see below. The pump will be located inside the fuel tank.Most of the time , its the pump and not the relay but, it wouldn't hurt to check the relay out. Teh relay is housed in the CCRM. Its located behind the engine coolant reservoir.
Posted on Mar 20, 2009
SOURCE: 1999 ford taurus se 3.0l
Your fuel pump is fitted in the fuel tank and its the thing you have to change so you either remove it and replace it with a new one as the pumps in the tanks do give problems so remove and replace OR take to your garage and ask them to do it foe you..
And alls done..
Posted on Oct 04, 2009
check your relay and your fuel filter should be replaced every 30,000 miles
Posted on Mar 18, 2010
Testimonial: "Thank you for your help! Truck decided to run good today!"
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