Q: Fuel system, inertia relay, or pump will not start, never had problems in the past

asked by on September 14, 2016

One day i go out to start and it would not. I spray starter fluid, it ran for a second and died on a couple of times.
My car has an automatic transmission.

Car is not starting Inspection $79.99 - $99.99 Get a Quote
Fuel Pump Replacement $129.49 - $1235.95 Get a Quote

Hello there, thank you for asking about your 2007 Ford Explorer. The first thing to do is to have the fuel pressure tested to see if the engine has pressure. Make sure the Theft Light is not on or flashing. This theft system will disable the pump. Then have the computer scanned to check for codes and diagnose them as needed. If there are no codes or the Theft Light is off and there are no problems with fuel pressure, then check for power to pump by accessing the inertia switch in the right inside the passenger kick panel. Remove the panel and make sure the inertia switch is not tripped. Check the wiring for power to fuel pump when the key is turned to start or cycling on and off. If you have power then your fuel pump is not working and needs to be replaced. Try hitting the bottom of the fuel tank while someone is cranking the engine. If the vehicle now starts then the pump should be replaced and the tank cleaned out if debris and metal particles are seen in the bottom of the tank. If you would like help doing this, a certified technician from YourMechanic can inspect your starting problem and replace the fuel pump if necessary.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

What others are asking

Issues with shaking in steering while driving - 1994 Ford F-150

Hey there. I would first look at tires and wheel balance, particularly if the tires have a lot of miles on them. Damaged tires can appear (on a balancing machine) to be balanced, yet they will vibrate terribly due to...

Truck sputtering going uphill.

I would only be speculating on this problem since you have altered the fuel tank system on the truck. I suspect that the fuel pump is getting starved of fuel and when you are going up a hill causes the...

Whilst driving the car will cut out. In the begining it would start immediatetly now if it cuts out it doesnt want to start

Hello. I would need to know the model of your Toyota to be able to give you the best information. From what you are telling me though it sounds like the crank sensor harness may be damaged or that one...

Rough idling

Hello. This could be caused by a variety of things. It could be that your spark plugs or coil packs are misfiring. This means that the coil pack is not sending the proper electricity to the spark plug. It could...

Hi i have a 2005 ford explorer. My truck doesnt move in drive and only moves in 1st gear and it doesn't reverse.

What you are describing is often a sign of low transmission fluid or a faulty transmission control solenoid. As you know, automatic transmissions use pressurized hydraulic fluid to change gears. Every time a gear change is required, the car's computer...

2016 Ford fusion se grinding rear brakes only has 17000 miles

If the brake noise is occurring at all times, that is even without pedal application, then the caliper and/or torque plate are sticking or there is a parking brake malfunction. If the noise only occurs upon braking, it is most...

To disable alarm permanently

Hey there, sorry to hear about this issue. Since the key itself is not working, there is likely a fault with the alarm system. If the alarm is a factory alarm then it will need to be repaired by the...

Gauges go the left, randomly dies, and sometimes won't start.

Hello. From what you describe, it would appear to me that your vehicle may be experiencing some sort of electrical or wiring issue. It may be possible that once the temperature reaches a certain point either a component or wire...

Shift to drive but goes to manual mode not automatic.

Hi there. Check the shifter to the transmission. The shifter solenoid is not working properly and needs replaced. Remove the shifter housing from the vehicle and you will see a solenoid in it. This is the shift interlock solenoid for...

Related articles

The Best Used Cars to Buy That Can Be Towed Behind an RV
Summer Summer is a great time for a road trip, but often travelers like bringing all the conveniences of home along, in the form of an RV. Then they tow their car behind it – sometimes this practice is called...
How to Use GhosTrack as a Vehicle Tracking Application
The The GhosTrack application allows you to track a variety of important things in your life, including your children and your vehicle. The app can help prevent theft by allowing you to use two mobile devices to track objects or...
A Buyer’s Guide to the 2012 Ford Edge
In In the ‘80s, families drove station wagons. In the ’90s and ’00s, those got replaced by minivans and SUVs. Today, more and more families are opting for a more fuel efficient compromise that’s also a little sportier and more...