Q: Car cranks, but will not start. If I pull the fuel line off, it starts up to 500 rpm then dies.

asked by on

I have made sure it gets fuel and spark. Vehicle will not run, it keeps flooding the engine. I have went through all sensor and grounds, I have no idea what is wrong.

My car has 110000 miles.
My car has an automatic transmission.

Hi there, thanks for writing in. I’d be happy to help.

You can disconnect the vacuum line to the fuel pressure regulator on the fuel injector rail to see if fuel comes out of the regulator. If it does, then replace it and change the oil and filter and clear the codes. If no fuel is coming out of regulator, then have fuel pressure tested to see if one of the fuel injectors is stuck open flooding the engine. Then, replace the fuel regulator or leaking injector. Try to scan the vehicle and compare readings of the sensors to specifications. The mass air sensor may be causing the excessive fuel problem.

If you would like help, consider having an expert automotive technician from YourMechanic come to your home or office to inspect and diagnose this issue for you, and make any repairs as needed.

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. Car cranks, but will not start. If I pull the fuel line off, it starts up to 500 rpm then dies.

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: Mercedes Benz Vito 115CDI hot starting problem

Hi there. The glow plugs are designed to help start the engine even when the engine is hot. If the code is on for the glow plugs, check the glow plug relay and timer and see if its energizing as...

Q: Temperature was fluctuating then overheated then blew coolant every where, what do you thinknthe problem is

The reason the heat was working intermittently is once the coolant starts boiling within the cooling system, the boiling action creates an impediment to normal coolant circulation to and through the heater core. So, ironically, even as the engine is...

Q: I have a 2005 impala, I bought a new starter and battery and the car starts sometimes but can't put in drive or it shuts off

Hi There, What you are describing sounds like a dirty or faulty idle air control valve. The idle control valve reads the air intake into the throttle body and relays this information to the computer which then uses this information...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
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...
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.