Skip the auto shop - Our mechanics make house calls

Q: The car takes about 5 cranks to start and once it does start the car jerks and only idles at about 500 rpm

asked by on

the car takes about 5 cranks to start and once it starts its idles horrible with engine jerking when i drive down the road it bogs down eventually the rpms shoot up and the car takes off then there is a sputtering noise and it bogs down again even with my foot on the gas.

My car has 165000 miles.
My car has an automatic transmission.

This is a fuel supply problem. Fuel pressure will be the key indicator for which component of the fuel system isn’t performing as needed. Check to be sure the fuel pump relay is good, and the fuel pump is running continuously.

Make sure the fuel filter isn’t clogged if fuel pressure remains low all the time. If fuel pressure still isn’t coming up to design specification, either the fuel pressure regulator is not closing properly to keep pressure up, or the fuel pump is worn such that it can’t build up adequate pressure.

I would recommend having YourMechanic diagnose this issue, provide an accurate assessment of damage, and estimate the cost of repairs. YourMechanic can dispatch a mobile, professional mechanic to your location for a proper diagnosis of your starting issue and help you repair the issue as necessary.

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
  • The car takes about 5 cranks to start and once it does start the car jerks and only idles at about 500 rpm

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: Hissing noise from bottom right side when accelarating

This may be a sign of a vacuum leak. High idle speed, stalling and hissing sounds are common signs of a vacuum leak. When a vacuum leak is present in an engine, this causes an excessive imbalance in the air/fuel...

Q: Are there standards for replacing fuel lines?

This is a very difficult question to answer as we would need to visually inspect the repairs and damage to your Saturn. However, speaking generally, yes, there are standards that ASE certified mechanics use to replace fuel lines. Typically, the...

Q: Car loses power and stalls/dies if under 2000 RPM

Hello there. There are a few possible problems could be causing your 1999 Nissan 200SX to stall in this manner. The most common would be a MAF sensor, vacuum leak, fuel pump, fuel filter, alternator, battery or oxygen sensors. I...

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...
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...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.