Skip the auto shop - Our mechanics make house calls

Q: No current to fuel pump

asked by on

My camper was started up two weeks ago. But this week it cranked and wouldn't start. There is no current to the fuel pump. It has a new fuel pump, relay, oil pressure sensor, and spark plug.

First, I would check the inertia switch. This switch opens on perceived impact and prevents power from getting to the fuel pump. There should be continuity across the switch at all times. If the switch is good, I would check the fuel pump fusible link. This link may blow if the fuel pump is worn and drawing excessive current, of if there is a short somewhere in the circuit. If both these items check out, the engine control module (ECM) is not applying power to the fuel pump relay. This could be because of a faulty sensor, wiring, or an internal ECM problem. I suggest having a trained professional, such as one from YourMechanic, diagnose your Ford firsthand.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. No current to fuel pump

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

Get a quote

What others are asking

Q: When the weather is nice outside, the car start fine. When it is cold, the car refuses to start until I try it several time

Hello, the first step in resolving this problem is to determine if there are any problem codes set by engine management - even if the Check Engine light is not illuminated. Most auto parts supply stores will check this for...

Q: Electrical system not charging

You may have a failing voltage regulator that could be allowing the alternator to supply too much or too little amperage to the battery resulting in the battery never maintaining a consistent charge as it is designed to. The voltage...

Q: Water leak, don't know where

If your engine has no external coolant leaks, and is still requiring you to put water in the radiator, that water is leaking internally inside the engine. But before jumping to that conclusion, a cooling system pressure test should be...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...