What should I do if my fuel pump wont start?
What should I do if my fuel pump wont start?
Turn the key to RUN, not start. Listen for the fuel pump to start and run for approximately 2-secs. Then turn the key to OFF and then back to RUN. The fuel pump should start and run a second time for approximately 2-secs. Repeat the procedure one more time. Each time the pump runs for 2-secs., it’s priming the fuel rail and building pressure.
Why does my fuel pump not prime with the key on?
Fuel pump doesn’t prime with key on. I’ve been trying to figure this out for a couple days now. My 01 Tiburon wouldn’t start the other day. It would crank, but wouldn’t fire. When I turn the key to the “on” position, the fuel pump doesn’t kick on.
What are the symptoms of a fuel pump problem?
Fuel pump symptom: You turn the key and the engine cranks for more than 5-secs. before the engine starts or it never starts. If the engine never starts, you’d start your diagnosis by checking for good spark, fuel injector signal and fuel pressure.
How long does it take for the fuel pump to start in a car?
It will stay there (usually) for a good 24 hours (Note: 24 hours is an approximation. It will take longer in some cars and less time in others for the fuel pressure to bleed off back into the fuel tank). When you turn the key on, the fuel pump will start running. This happens as fast as you turn the key.
Why does my fuel pump not prime when I turn it on?
Pulled fuel pump relay and put in a jumper wire to run the fuel pump and it started. Put the fuel pump relay back in and it starts and drives, but the fuel pump still doesn’t prime when turning the key on. I’m afraid that after sitting overnight, it will once again refuse to start.
When do I turn ignition on fuel pump keeps running?
I don’t think anywhere in the thread he has said that the engine is turning over, only the hum of a motor running, which is most likely the fuel pump. However, he still should be able to get the engine to turn over with the starter, unless the battery voltage is low and the voltage circuit in the starter relay is keeping it from activating.
Is the fuel pump suppose to get power with the ” on ” key?
I have a Haynes manual for my 90 TSi Awd that specifically states that the fuel pump should come on with the key in the “on” position, engine off, and that it will shut off after two seconds if no ignition signal is detected. Mine’s even done that once or twice, too. So yes, technically, it should, though it may not be doing so.
Why is the fuel pump relay not closing?
If jumping the fuel pump relay makes the pump run, and if the relay tests good. Then you need to determine why the ECM is not telling the relay to close. Start by testing continuity back to the ECM. Here is the electrical diagram for the 01 Tib Fuel Pump Relay
