Q: Trouble starting - 2004 Hyundai Elantra

asked by on

Car starts and jerks around and then dies first time. Starts again and does the same the next time and I rev it a bit and it settles down and behaves normally again. Drove fine all the way to town. Turned it off went to an appointment. Got in wouldn't start. Got it on the third or 4th try. Drove it home fine. Have had spark plugs and leads replaced 4 months ago. Has just been serviced over 2 months ago

My car has 156300 miles.
My car has an automatic transmission.

Hey there. Your symptoms may well describe a fuel supply issue - specifically fuel pressure. If the fuel pressure regulator and/or check valve are not working properly, engine start, especially after the vehicle has been sitting for a bit will take longer than it should.

There should be partial pressure in the fuel system when the engine is shut down to assist fast startup. When the pressure regulator and/or fuel check valve malfunction, the fuel pump is having to run longer to build up enough pressure for the fuel injectors to work properly - requiring long "cranking" cycles. To get a precise diagnosis of this, I would recommend having a local expert, like one from YourMechanic, inspect the starting problem in person so that this can be corrected.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1,000 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

Ask a Mechanic
(100% Free)

Have a car question? Get free advice from our top-rated mechanics.

Ask A Mechanic
Over 10,000 questions answered!
  1. Home
  2. Questions
  3. Trouble starting - 2004 Hyundai Elantra

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: Need to know the name of a part

Hi there. Unfortunately, we don't have the ability to receive photos to diagnose a problem or identify a part on this platform. If you were involved in an accident, and the part is on the outside of the vehicle (like...

Q: Q: Car won't start

In order to know what is causing the no start you should first try to put the transmission in neutral and see if the engine cranks. If it does then the neutral safety switch may be the cause and need...

Q: Brake light sometimes on

Hello! If you are referring to the taillights, the brake light switch may be faulty. I suggest having a technician check the break light switch for excessive wear at its contact point. If you are referring to a brake light...

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...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...
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...