Q: Q: my car cranks but doesn't start.

asked by on

my car cranks but doesn't start. I unplug the fuel pump then it starts. I've already changed the fuel pump and also, It's not because of the anti-theft.

You’re starting it after unplugging the fuel pump? It won’t stay running very long before your engine stalls out again! You may have a bad fuel pressure regulator that is dumping fuel into the intake causing the engine to flood when you first try and start the car.

Depending on the vehicle and engine the fuel regulator will have a vacuum line on some designs. Disconnect the line and turn they key on to see if fuel comes out. If it does then replace regulator. If the regulator is on the spider inside of the intake then leak the fuel pump connected to it. Then try holding the gas pedal to floor and see if it starts and stays running. You may have a bad spider and regulator in this case.

If you decide to get this fixed, consider YourMechanic, as a certified technician can diagnose your starting issue firsthand and help you replace your fuel pressure regulator as necessary. Good luck.

Was this answer helpful?
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. Q: my car cranks but doesn't start.

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: Car won't start but will turn over - 2007 Volvo S40

Hi there. If the belt broke, then it may have damaged some of the wiring. When the belt breaks, it can hit the wiring going to the crankshaft position sensor which will keep the vehicle from starting. I usually check...

Q: I have a 1997 dodge ram 1500. It is not getting up to speed and acts like it has no power.

Hi there. Check the fuel pressure on the fuel rail and see if there is at least 30 psi. If the fuel pressure is low, then either the fuel filter is plugged or the fuel pump is not producing enough...

Q: My car cranks but don't start. What could be the issue?

Any number of components can cause a crank but no start condition. Lack of spark - caused by a bad ignition coil or control module, as well as a crank shaft sensor could be at fault; lack of fuel due...

Related articles

How to Avoid Back Pain in a Car
If you have back problems, sitting in a car for an extended period of time can be excruciating. Even without back problems, you could experience discomfort and soreness from...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...
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...