If you suspect your car troubles are caused by a bad fuel pump relay, here are the easy steps on how to do it: Step 1. Get a friend to stand near the gas tank or rear exhaust and see if they can hear any clicking or high pitched hum when you turn the key to the “start” position.Ī Multimeter tester will help diagnose a failing fuel pump relay How to test a fuel pump relay However, if your fuel pump relay is bad or failing, this noise will be silent. Normally a fuel pump with make a faint clicking or whining noise. It’s a good sign that you need to replace this part though! 6. Have you noticed issues of driving along and suddenly your vehicle shuts down? Yeah it’s scary. You don’t want to end up paying $300 for an OEM fuel pump when all your car needed is a $25 fuel pump relay. This includes engine stalling, weak acceleration, bad idling, and a no-start condition.Īnd since this issue can be caused by other faulty parts in the fuel system, it is important to know the steps on how to check for a malfunctioning fuel pump relay. Engine Performance Issues – Stalling, Idling, Acceleration, Not Startingīesides the check engine light, the vehicle will manifest some performance symptoms. Yup, that’s a sign you have fuel issues and should investigate this part as well as your fuel pump and maybe even injectors. Long Starting Timeįind yourself cranking the motor over for more than 10 seconds? So if you have lots of miles on your car, it may be time to replace this part. Now this part is designed to last for a long time (100-200k miles) but as we know from the Second Law of Thermodynamics that everything is breaking down.
#2018 FORD EXPLORER FUEL PUMP REPLACEMENT CODE#
If you find a P0230 or P0231 OBD2 Diagnostic Trouble Code (DTC), this means a malfunction in the primary circuit of the fuel pump. In order to read the code, you’ll need to hook up an OBD2 scan tool. In most cases, the primary symptom is a check engine light.And you know what this means right? It’s a sign the ECU is holding on to some trouble codes. Check Engine Light (CEL) is likely on if you have a bad pump relay 1. We suggest getting this part replaced immediately before you damage a fuel line, or your fuel pump. If this part is going out, you’re going to know it right away! Your vehicle is probably stuttering, stalling, has poor acceleration and a handful of other issues. Fuel Pump Relay – especially in Fords, these things love to fail! How to tell if fuel pump relay is bad (6 Signs)
But before we proceed, it is important to know a bit more about the relay in general. The good news is it’s easy to check for a broken injector pump relay. If there’s something wrong with the relay, you can expect the fuel pump to fail intermittently. Every time you press the gas pedal, the injector pump relay responds by supplying the fuel pump with the required voltage. The relay activates the fuel pump to pressurize the fuel system as you turn the key.Īnd all of this is happening with the precision of an orchestra. The fuel pump relay is also responsible for helping your vehicle to start. In return, the fuel pump delivers the fuel to the injectors and inside the combustion chamber. It is the job of the fuel injector pump relay to supply a steady flow of electrical current to the fuel pump. The engine demands a certain level or amount of fuel at any given moment. Modern engines need precise amounts of fuel to run properly.
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