Skip the auto shop - Our mechanics make house calls

Q: 2004 Hyundai Sonata jerks while accelerating from stop.

asked by on

2004 Hyundai Sonata jerks while accelerating from stop. Jerks every 500 rpm starting from 0 up to 2000. Doesn't happen when i put it in slap shift on 2nd gear and higher. What is wrong?"

My car has 111500 miles.
My car has an automatic transmission.

Hello, thank you for writing in. There may be several components you will have to inspect before you find the issue. You will want to start with the distributor cap. Make sure it is clean and dry inside. Jerking when accelerating is often related to moisture accumulating in the distributor cap. It causes malfunctions with the spark plugs and can cause misfiring. A vacuum leak can also cause similar symptoms. This can be tested several ways, and if doing it from home you will want to find a method that matches the tools you have available. Further testing is needed.

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

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: SRS light stays on after reset and good connectors.

Hi there. If the light is still coming on then the air bag module needs to be scanned. I would typically start by scanning the module to see which codes come up which will tell me why it is coming...

Q: Engine Noise at all revs- especially while accelerating/revving higher.

Hey there, thanks for writing in. An initial and particular concern would be if you have an exhaust manifold leak. If so, that needs to be checked out and repaired immediately due to the hazard of carbon monoxide. Beyond that,...

Q: Location for speed sensor?

Hello. It sounds like your transmission is in "limp mode", causing the 2nd gear start operation. If you can get the problem codes that are setting the Check Engine light, it will help in your diagnosis considerably! Most auto...

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...
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...