Is my fuel pump working?
If your engine starts and runs, then the answer is: "Yes, your fuel pump is working."
But what if your engine doesn’t start and run? Is your fuel pump working then? This is actually one of the first things that drivability technicians look at when diagnosing a vehicle no-start.
On fuel-injected vehicles, checking for fuel pump operation requires several checks.
First, when you turn the ignition key to the “ON” position, can you hear the fuel pump operate inside the fuel tank? If the answer is yes, then how much fuel pressure is it generating? This is done by attaching a fuel pressure gauge to the fuel rail on the engine. If the answer is no, then why not?
If the cause of a non-functioning fuel pump is actually the fuel pump, contact a professional mechanic who can replace that fuel pump for you. You don’t come to us; we come to you.
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