Skip the auto shop - Our mechanics make house calls

Q: Intermittently the car cranks longer and has difficulty to keep running

asked by on

Hi. I was wondering why my car cranks a lot longer than it should. When I start it, it seems that it has difficulty to keep running. It lasts briefly and then the car runs fine. When I start it up after cranking for a while, it drives great with no issues. So, it happens sporadically. What could be causing this? Thanks.

This problem is most likely caused by the fuel system. The entire fuel system needs to be checked to see what is causing the pressure to leak down. The fuel pump may not be holding pressure, an injector may be leaking, or the pressure regulator may not be holding pressure. All of these items can cause the problem and would need to be tested and isolated to find the cause of the hard start.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  • Home
  • Questions
  • Intermittently the car cranks longer and has difficulty to keep running

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: Transmission slipping, gear warning on the dash

Hello. Let's hope that you don't have an issue with the mechanical aspect of the transmission on your 2002 BMW 330xi. I believe the best thing to check will be the transmission fluid. Also, I suggest having a technician run...

Q: Loud metal to metal thud sound when turning and changing gears

Hi there, thanks for writing in. If you're getting a loud banging on acceleration, I would say it sounds like you have worn engine or transmission mounts, or perhaps a worn torque arm bushing that mounts the solid rear axle...

Q: Key won't turn, Check Engine light on.

If it is the correct key and it is inserted all of the way in, then most likely the cylinder is bad. Wiggle the key around while trying to turn it. It may eventually unlock and turn, but this problem...

Related articles

How Long Does a Distributor O Ring Last?
The distributor is part of the ignition system in your vehicle and its purpose is to route high voltage from the ignition coil to the spark plug. The spark plug then...
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...
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.